Articles | Volume 23, issue 9
03 Sep 2019
Research article | 03 Sep 2019
Mapping the suitability of groundwater-dependent vegetation in a semi-arid Mediterranean area
Inês Gomes Marques et al.
No articles found.
Anne Sophie Daloz, Clemens Schwingshackl, Priscilla Mooney, Susanna Strada, Diana Rechid, Edouard L. Davin, Eleni Katragkou, Nathalie de Noblet-Ducoudré, Michal Belda, Tomas Halenka, Marcus Breil, Rita M. Cardoso, Peter Hoffmann, Daniela C. A. Lima, Ronny Meier, Pedro M. M. Soares, Giannis Sofiadis, Gustav Strandberg, Merja H. Toelle, and Marianne T. Lund
The Cryosphere, 16, 2403–2419,Short summary
Snow plays a major role in the regulation of the Earth's surface temperature. Together with climate change, rising temperatures are already altering snow in many ways. In this context, it is crucial to better understand the ability of climate models to represent snow and snow processes. This work focuses on Europe and shows that the melting season in spring still represents a challenge for climate models and that more work is needed to accurately simulate snow–atmosphere interactions.
Priscilla A. Mooney, Diana Rechid, Edouard L. Davin, Eleni Katragkou, Natalie de Noblet-Ducoudré, Marcus Breil, Rita M. Cardoso, Anne Sophie Daloz, Peter Hoffmann, Daniela C. A. Lima, Ronny Meier, Pedro M. M. Soares, Giannis Sofiadis, Susanna Strada, Gustav Strandberg, Merja H. Toelle, and Marianne T. Lund
The Cryosphere, 16, 1383–1397,Short summary
We use multiple regional climate models to show that afforestation in sub-polar and alpine regions reduces the radiative impact of snow albedo on the atmosphere, reduces snow cover, and delays the start of the snowmelt season. This is important for local communities that are highly reliant on snowpack for water resources and winter tourism. However, models disagree on the amount of change particularly when snow is melting. This shows that more research is needed on snow–vegetation interactions.
João António Martins Careto, Pedro Miguel Matos Soares, Rita Margarida Cardoso, Sixto Herrera, and José Manuel Gutiérrez
Geosci. Model Dev., 15, 2635–2652,Short summary
This work focuses on the added value of high-resolution models relative to their forcing simulations, with a recent observational gridded dataset as a reference, covering the entire Iberian Peninsula. The availability of such datasets with a spatial resolution close to that of regional climate models encouraged this study. For precipitation, most models reveal added value. The gains are even more evident for precipitation extremes, particularly at a more local scale.
João António Martins Careto, Pedro Miguel Matos Soares, Rita Margarida Cardoso, Sixto Herrera, and José Manuel Gutiérrez
Geosci. Model Dev., 15, 2653–2671,Short summary
This work focuses on the added value of high-resolution models relative to their forcing simulations, with an observational gridded dataset as a reference covering the Iberian Peninsula. The availability of such datasets with a spatial resolution close to that of regional models encouraged this study. For the max and min temperature, although most models reveal added value, some display losses. At more local scales, coastal sites display important gains, contrasting with the interior.
Miguel Mendes Lima, Célia Marina Gouveia, and Ricardo Machado Trigo
This article aimed to explore the interaction between tropical cyclones and the ocean on a relatively less studied regarding these events. Tropical cyclones generally create an area of colder waters behind, which in turn can contribute to an increase in biological activity. We found that, for the Azores region, the intensity and track geometry of the cyclones are the most important factors to determine these responses. On the other hand, the speed of the cyclone was less important.
Miguel Nogueira, Alexandra Hurduc, Sofia Ermida, Daniela C. A. Lima, Pedro M. M. Soares, Frederico Johannsen, and Emanuel Dutra
Geosci. Model Dev. Discuss.,
Preprint under review for GMDShort summary
We evaluated the quality of the ERA-5 reanalysis representation of the urban heat island (UHI) over the city of Paris and performed a set of offline runs using the SURFEX land surface model. The SURFEX-TEB runs showed the best performance in representing the Urban Heat Island, reducing its bias significantly. We demonstrate the ability of the SURFEX-TEB framework to simulate urban climate, which is crucial for studying climate change in cities.
Giannis Sofiadis, Eleni Katragkou, Edouard L. Davin, Diana Rechid, Nathalie de Noblet-Ducoudre, Marcus Breil, Rita M. Cardoso, Peter Hoffmann, Lisa Jach, Ronny Meier, Priscilla A. Mooney, Pedro M. M. Soares, Susanna Strada, Merja H. Tölle, and Kirsten Warrach Sagi
Geosci. Model Dev., 15, 595–616,Short summary
Afforestation is currently promoted as a greenhouse gas mitigation strategy. In our study, we examine the differences in soil temperature and moisture between grounds covered either by forests or grass. The main conclusion emerged is that forest-covered grounds are cooler but drier than open lands in summer. Therefore, afforestation disrupts the seasonal cycle of soil temperature, which in turn could trigger changes in crucial chemical processes such as soil carbon sequestration.
Manuel C. Almeida, Yurii Shevchuk, Georgiy Kirillin, Pedro M. M. Soares, Rita M. Cardoso, José P. Matos, Ricardo M. Rebelo, António C. Rodrigues, and Pedro S. Coelho
Geosci. Model Dev., 15, 173–197,Short summary
In this study, we have evaluated the importance of the input of energy conveyed by river inflows into lakes and reservoirs when modeling surface water energy fluxes. Our results suggest that there is a strong correlation between water residence time and the surface water temperature prediction error and that the combined use of process-based physical models and machine-learning models will considerably improve the modeling of air–lake heat and moisture fluxes.
Margarida L. R. Liberato, Irene Montero, Célia Gouveia, Ana Russo, Alexandre M. Ramos, and Ricardo M. Trigo
Earth Syst. Dynam., 12, 197–210,Short summary
Extensive, long-standing dry and wet episodes are frequent climatic extreme events (EEs) in the Iberian Peninsula (IP). A method for ranking regional extremes of persistent, widespread drought and wet events is presented, using different SPEI timescales. Results show that there is no region more prone to EE occurrences in the IP, the most extreme extensive agricultural droughts evolve into hydrological and more persistent extreme droughts, and widespread wet and dry EEs are anti-correlated.
Andreia Filipa Silva Ribeiro, Ana Russo, Célia Marina Gouveia, Patrícia Páscoa, and Jakob Zscheischler
Biogeosciences, 17, 4815–4830,Short summary
This study investigates the impacts of compound dry and hot extremes on crop yields, namely wheat and barley, over two regions in Spain dominated by rainfed agriculture. We provide estimates of the conditional probability of crop loss under compound dry and hot conditions, which could be an important tool for responsible authorities to mitigate the impacts magnified by the interactions between the different hazards.
Edouard L. Davin, Diana Rechid, Marcus Breil, Rita M. Cardoso, Erika Coppola, Peter Hoffmann, Lisa L. Jach, Eleni Katragkou, Nathalie de Noblet-Ducoudré, Kai Radtke, Mario Raffa, Pedro M. M. Soares, Giannis Sofiadis, Susanna Strada, Gustav Strandberg, Merja H. Tölle, Kirsten Warrach-Sagi, and Volker Wulfmeyer
Earth Syst. Dynam., 11, 183–200,
Sixto Herrera, Rita Margarida Cardoso, Pedro Matos Soares, Fátima Espírito-Santo, Pedro Viterbo, and José Manuel Gutiérrez
Earth Syst. Sci. Data, 11, 1947–1956,Short summary
A new observational dataset of daily precipitation and temperatures for the Iberian Peninsula and the Balearic Islands has been developed and made publicly available for the community. In this work the capabilities of the new dataset to reproduce the mean and extreme regimes of precipitation and temperature are assessed and compared with the E-OBS dataset (including the ensemble version for observational uncertainty assessment).
Andreia F. S. Ribeiro, Ana Russo, Célia M. Gouveia, Patrícia Páscoa, and Carlos A. L. Pires
Nat. Hazards Earth Syst. Sci., 19, 2795–2809,Short summary
This work investigates the dependence between drought hazard and yield anomalies of rainfed cropping systems in the Iberian Peninsula using the copula theory. The applied methodology allows us to estimate the likelihood of wheat and barley loss under drought conditions, and a dependence among extreme values is suggested. From the decision-making point of view this study aims to contribute to the mitigation of drought-related crop failure.
Catarina Alonso, Celia M. Gouveia, Ana Russo, and Patrícia Páscoa
Nat. Hazards Earth Syst. Sci., 19, 2727–2743,Short summary
A vulnerability assessment method is proposed to identify the most vulnerable regions over Portugal. Two methods were compared, namely a subjective categorical method and an automatic method, based on drought indicators, vegetation indices and soil variables. Both methods present similar results, and both identify Minho (Alentejo) as having low (extreme) vulnerability. The automatic method has advantages, as it is fully statistical and presents results without prior knowledge of the region.
Raquel Lobo-do-Vale, Cathy Kurz Besson, Maria Conceição Caldeira, Maria Manuela Chaves, and João Santos Pereira
Biogeosciences, 16, 1265–1279,Short summary
By comparing the cork oak tree vegetative phenology in two contrasting precipitation years in a Mediterranean ecosystem, we showed the critical role of water availability in extending the length of the growing season and determining tree growth. The observed higher transfer of nitrogen from senescent to green leaves in response to drought might compensate for the limited nitrogen uptake by the roots. Our results improve our understanding of the ecosystem's responses to climate change.
Patrícia Páscoa, Célia M. Gouveia, Ana C. Russo, Roxana Bojariu, Sergio M. Vicente-Serrano, and Ricardo M. Trigo
Hydrol. Earth Syst. Sci. Discuss.,
Revised manuscript not accepted
Ana Bastos, Anna Peregon, Érico A. Gani, Sergey Khudyaev, Chao Yue, Wei Li, Célia Gouveia, and Philippe Ciais
Revised manuscript not acceptedShort summary
The ice-core record indicates a stabilization of atmospheric CO2 in the 1940s, which is not captured by the state-of-the-art reconstructions of CO2 sources and sinks. The 1940s where marked by major socio-economic disruptions due to war. At the same time, very strong warming was registered in the high-latitudes. Here we evaluate the contributions of these two factors to a possible increase in the terrestrial sink not captured in other datasets, using the Former Soviet Union as a case study.
E. Katragkou, M. García-Díez, R. Vautard, S. Sobolowski, P. Zanis, G. Alexandri, R. M. Cardoso, A. Colette, J. Fernandez, A. Gobiet, K. Goergen, T. Karacostas, S. Knist, S. Mayer, P. M. M. Soares, I. Pytharoulis, I. Tegoulias, A. Tsikerdekis, and D. Jacob
Geosci. Model Dev., 8, 603–618,
A. Bastos, C. M. Gouveia, R. M. Trigo, and S. W. Running
Biogeosciences, 11, 3421–3435,
Related subject area
Subject: Ecohydrology | Techniques and Approaches: Modelling approachesCoupled modelling of hydrological processes and grassland production in two contrasting climatesDoes maximization of net carbon profit enable the prediction of vegetation behaviour in savanna sites along a precipitation gradient?Modelling the artificial forest (Robinia pseudoacacia L.) root–soil water interactions in the Loess Plateau, ChinaA deep learning hybrid predictive modeling (HPM) approach for estimating evapotranspiration and ecosystem respirationVegetation greening weakened the capacity of water supply to China's South-to-North Water Diversion ProjectStructural changes to forests during regeneration affect water flux partitioning, water ages and hydrological connectivity: Insights from tracer-aided ecohydrological modellingHow does water yield respond to mountain pine beetle infestation in a semiarid forest?Daily soil temperature modeling improved by integrating observed snow cover and estimated soil moisture in the USA Great PlainsPlant hydraulic transport controls transpiration sensitivity to soil water stressDrought onset and propagation into soil moisture and grassland vegetation responses during the 2012–2019 major drought in Southern CaliforniaQuantifying the effects of urban green space on water partitioning and ages using an isotope-based ecohydrological modelLow and contrasting impacts of vegetation CO2 fertilization on global terrestrial runoff over 1982–2010: accounting for aboveground and belowground vegetation–CO2 effectsGlobal ecosystem-scale plant hydraulic traits retrieved using model–data fusionQuantifying the effects of land use and model scale on water partitioning and water ages using tracer-aided ecohydrological modelsQuantification of ecohydrological sensitivities and their influencing factors at the seasonal scaleCanopy temperature and heat stress are increased by compound high air temperature and water stress and reduced by irrigation – a modeling analysisEvaluating a landscape-scale daily water balance model to support spatially continuous representation of flow intermittency throughout stream networksTesting water fluxes and storage from two hydrology configurations within the ORCHIDEE land surface model across US semi-arid sitesNovel Keeling-plot-based methods to estimate the isotopic composition of ambient water vaporDisentangling temporal and population variability in plant root water uptake from stable isotopic analysis: when rooting depth matters in labeling studiesCalibration of hydrological models for ecologically relevant streamflow predictions: a trade-off between fitting well to data and estimating consistent parameter sets?Spatial variability of mean daily estimates of actual evaporation from remotely sensed imagery and surface reference dataQuantification of soil water balance components based on continuous soil moisture measurement and the Richards equation in an irrigated agricultural field of a desert oasisModeling boreal forest evapotranspiration and water balance at stand and catchment scales: a spatial approachThe 18O ecohydrology of a grassland ecosystem – predictions and observationsA comprehensive sensitivity and uncertainty analysis for discharge and nitrate-nitrogen loads involving multiple discrete model inputs under future changing conditionsDynamic responses of DOC and DIC transport to different flow regimes in a subtropical small mountainous riverEvaluation of ORCHIDEE-MICT-simulated soil moisture over China and impacts of different atmospheric forcing dataTesting an optimality-based model of rooting zone water storage capacity in temperate forestsA regional-scale ecological risk framework for environmental flow evaluationsClimate-driven disturbances in the San Juan River sub-basin of the Colorado RiverDominant effect of increasing forest biomass on evapotranspiration: interpretations of movement in Budyko spaceModeling the potential impacts of climate change on the water table level of selected forested wetlands in the southeastern United StatesCalibration of a parsimonious distributed ecohydrological daily model in a data-scarce basin by exclusively using the spatio-temporal variation of NDVIImportance of considering riparian vegetation requirements for the long-term efficiency of environmental flows in aquatic microhabitatsWaning habitats due to climate change: the effects of changes in streamflow and temperature at the rear edge of the distribution of a cold-water fishCosmic-ray neutron transport at a forest field site: the sensitivity to various environmental conditions with focus on biomass and canopy interceptionEstimation of surface energy fluxes in the Arctic tundra using the remote sensing thermal-based Two-Source Energy Balance modelEnvironmental controls on seasonal ecosystem evapotranspiration/potential evapotranspiration ratio as determined by the global eddy flux measurementsAttributing regional trends of evapotranspiration and gross primary productivity with remote sensing: a case study in the North China PlainA Budyko framework for estimating how spatial heterogeneity and lateral moisture redistribution affect average evapotranspiration rates as seen from the atmosphereRegionalization of monthly rainfall erosivity patterns in SwitzerlandCanopy-scale biophysical controls of transpiration and evaporation in the Amazon BasinTechnical note: Fourier approach for estimating the thermal attributes of streamsDominant controls of transpiration along a hillslope transect inferred from ecohydrological measurements and thermodynamic limitsCombined measurement and modeling of the hydrological impact of hydraulic redistribution using CLM4.5 at eight AmeriFlux sitesProjecting water yield and ecosystem productivity across the United States by linking an ecohydrological model to WRF dynamically downscaled climate dataThe effect of assimilating satellite-derived soil moisture data in SiBCASA on simulated carbon fluxes in Boreal EurasiaSubsurface storage capacity influences climate–evapotranspiration interactions in three western United States catchmentsReconstructing the natural hydrology of the San Francisco Bay–Delta watershed
Nicholas Jarvis, Jannis Groh, Elisabet Lewan, Katharina H. E. Meurer, Walter Durka, Cornelia Baessler, Thomas Pütz, Elvin Rufullayev, and Harry Vereecken
Hydrol. Earth Syst. Sci., 26, 2277–2299,Short summary
We apply an eco-hydrological model to data on soil water balance and grassland growth obtained at two sites with contrasting climates. Our results show that the grassland in the drier climate had adapted by developing deeper roots, which maintained water supply to the plants in the face of severe drought. Our study emphasizes the importance of considering such plastic responses of plant traits to environmental stress in the modelling of soil water balance and plant growth under climate change.
Remko C. Nijzink, Jason Beringer, Lindsay B. Hutley, and Stanislaus J. Schymanski
Hydrol. Earth Syst. Sci., 26, 525–550,Short summary
Most models that simulate water and carbon exchanges with the atmosphere rely on information about vegetation, but optimality models predict vegetation properties based on general principles. Here, we use the Vegetation Optimality Model (VOM) to predict vegetation behaviour at five savanna sites. The VOM overpredicted vegetation cover and carbon uptake during the wet seasons but also performed similarly to conventional models, showing that vegetation optimality is a promising approach.
Hongyu Li, Yi Luo, Lin Sun, Xiangdong Li, Changkun Ma, Xiaolei Wang, Ting Jiang, and Haoyang Zhu
Hydrol. Earth Syst. Sci., 26, 17–34,Short summary
Drying soil layers (DSLs) have been extensively reported in artificial forestland in the Loess Plateau, China, which has limited water resources and deep loess. To address this issue relating to plant root–soil water interactions, this study developed a root growth model that simulates both the dynamic rooting depth and fine-root distribution. Evaluation vs. field data proved a positive performance. Long-term simulation reproduced the evolution process of the DSLs and revealed their mechanisms.
Jiancong Chen, Baptiste Dafflon, Anh Phuong Tran, Nicola Falco, and Susan S. Hubbard
Hydrol. Earth Syst. Sci., 25, 6041–6066,Short summary
The novel hybrid predictive modeling (HPM) approach uses a long short-term memory recurrent neural network to estimate evapotranspiration (ET) and ecosystem respiration (Reco) with only meteorological and remote-sensing inputs. We developed four use cases to demonstrate the applicability of HPM. The results indicate HPM is capable of providing ET and Reco estimations in challenging mountainous systems and enhances our understanding of watershed dynamics at sparsely monitored watersheds.
Jiehao Zhang, Yulong Zhang, Ge Sun, Conghe Song, Matthew P. Dannenberg, Jiangfeng Li, Ning Liu, Kerong Zhang, Quanfa Zhang, and Lu Hao
Hydrol. Earth Syst. Sci., 25, 5623–5640,Short summary
To quantify how vegetation greening impacts the capacity of water supply, we built a hybrid model and conducted a case study using the upper Han River basin (UHRB) that serves as the water source area to the world’s largest water diversion project. Vegetation greening in the UHRB during 2001–2018 induced annual water yield (WY) greatly decreased. Vegetation greening also increased the possibility of drought and reduced a quarter of WY on average during drought periods.
Aaron J. Neill, Christian Birkel, Marco P. Maneta, Doerthe Tetzlaff, and Chris Soulsby
Hydrol. Earth Syst. Sci., 25, 4861–4886,Short summary
Structural changes (cover and height of vegetation plus tree canopy characteristics) to forests during regeneration on degraded land affect how water is partitioned between streamflow, groundwater recharge and evapotranspiration. Partitioning most strongly deviates from baseline conditions during earlier stages of regeneration with dense forest, while recovery may be possible as the forest matures and opens out. This has consequences for informing sustainable landscape restoration strategies.
Jianning Ren, Jennifer C. Adam, Jeffrey A. Hicke, Erin J. Hanan, Christina L. Tague, Mingliang Liu, Crystal A. Kolden, and John T. Abatzoglou
Hydrol. Earth Syst. Sci., 25, 4681–4699,Short summary
Mountain pine beetle outbreaks have caused widespread tree mortality. While some research shows that water yield increases after trees are killed, many others document no change or a decrease. The climatic and environmental mechanisms driving hydrologic response to tree mortality are not well understood. We demonstrated that the direction of hydrologic response is a function of multiple factors, so previous studies do not necessarily conflict with each other; they represent different conditions.
Haidong Zhao, Gretchen F. Sassenrath, Mary Beth Kirkham, Nenghan Wan, and Xiaomao Lin
Hydrol. Earth Syst. Sci., 25, 4357–4372,Short summary
This study was done to develop an improved soil temperature model for the USA Great Plains by using common weather station variables as inputs. After incorporating knowledge of estimated soil moisture and observed daily snow depth, the improved model showed a near 50 % gain in performance compared to the original model. We conclude that our improved model can better estimate soil temperature at the surface soil layer where most hydrological and biological processes occur.
Brandon P. Sloan, Sally E. Thompson, and Xue Feng
Hydrol. Earth Syst. Sci., 25, 4259–4274,Short summary
Plants affect the global water and carbon cycles by modifying their water use and carbon intake in response to soil moisture. Global climate models represent this response with either simple empirical models or complex physical models. We reveal that the latter improves predictions in plants with large flow resistance; however, adding dependence on atmospheric moisture demand to the former matches performance of the latter, leading to a new tool for improving carbon and water cycle predictions.
Maria Magdalena Warter, Michael Bliss Singer, Mark O. Cuthbert, Dar Roberts, Kelly K. Caylor, Romy Sabathier, and John Stella
Hydrol. Earth Syst. Sci., 25, 3713–3729,Short summary
Intensified drying of soil and grassland vegetation is raising the impact of fire severity and extent in Southern California. While browned grassland is a common sight during the dry season, this study has shown that there is a pronounced shift in the timing of senescence, due to changing climate conditions favoring milder winter temperatures and increased precipitation variability. Vegetation may be limited in its ability to adapt to these shifts, as drought periods become more frequent.
Mikael Gillefalk, Dörthe Tetzlaff, Reinhard Hinkelmann, Lena-Marie Kuhlemann, Aaron Smith, Fred Meier, Marco P. Maneta, and Chris Soulsby
Hydrol. Earth Syst. Sci., 25, 3635–3652,Short summary
We used a tracer-aided ecohydrological model to quantify water flux–storage–age interactions for three urban vegetation types: trees, shrub and grass. The model results showed that evapotranspiration increased in the order shrub < grass < trees during one growing season. Additionally, we could show how
infiltration hotspotscreated by runoff from sealed onto vegetated surfaces can enhance both evapotranspiration and groundwater recharge.
Yuting Yang, Tim R. McVicar, Dawen Yang, Yongqiang Zhang, Shilong Piao, Shushi Peng, and Hylke E. Beck
Hydrol. Earth Syst. Sci., 25, 3411–3427,Short summary
This study developed an analytical ecohydrological model that considers three aspects of vegetation response to eCO2 (i.e., stomatal response, LAI response, and rooting depth response) to detect the impact of eCO2 on continental runoff over the past 3 decades globally. Our findings suggest a minor role of eCO2 on the global runoff changes, yet highlight the negative runoff–eCO2 response in semiarid and arid regions which may further threaten the limited water resource there.
Yanlan Liu, Nataniel M. Holtzman, and Alexandra G. Konings
Hydrol. Earth Syst. Sci., 25, 2399–2417,Short summary
The flow of water through plants varies with species-specific traits. To determine how they vary across the world, we mapped the traits that best allowed a model to match microwave satellite data. We also defined average values across a few clusters of trait behavior. These form a tractable solution for use in large-scale models. Transpiration estimates using these clusters were more accurate than if using plant functional types. We expect our maps to improve transpiration forecasts.
Aaron Smith, Doerthe Tetzlaff, Lukas Kleine, Marco Maneta, and Chris Soulsby
Hydrol. Earth Syst. Sci., 25, 2239–2259,Short summary
We used a tracer-aided ecohydrological model on a mixed land use catchment in northeastern Germany to quantify water flux–storage–age interactions at four model grid resolutions. The model's ability to reproduce spatio-temporal flux–storage–age interactions decreases with increasing model grid sizes. Similarly, larger model grids showed vegetation-influenced changes in blue and green water partitioning. Simulations reveal the value of measured soil and stream isotopes for model calibration.
Yiping Hou, Mingfang Zhang, Xiaohua Wei, Shirong Liu, Qiang Li, Tijiu Cai, Wenfei Liu, Runqi Zhao, and Xiangzhuo Liu
Hydrol. Earth Syst. Sci., 25, 1447–1466,Short summary
Ecohydrological sensitivity, defined as the response intensity of streamflow to vegetation change, indicates the hydrological sensitivity to vegetation change. The study revealed seasonal ecohydrological sensitivities were highly variable, depending on climate condition and watershed attributes. Dry season ecohydrological sensitivity was mostly determined by topography, soil and vegetation, while wet season ecohydrological sensitivity was mainly controlled by soil, landscape and vegetation.
Xiangyu Luan and Giulia Vico
Hydrol. Earth Syst. Sci., 25, 1411–1423,Short summary
Crop yield is reduced by heat and water stress, particularly when they co-occur. We quantify the joint effects of (unpredictable) air temperature and soil water availability on crop heat stress via a mechanistic model. Larger but more infrequent precipitation increased crop canopy temperatures. Keeping crops well watered via irrigation could reduce canopy temperature but not enough to always exclude heat damage. Thus, irrigation is only a partial solution to adapt to warmer and drier climates.
Songyan Yu, Hong Xuan Do, Albert I. J. M. van Dijk, Nick R. Bond, Peirong Lin, and Mark J. Kennard
Hydrol. Earth Syst. Sci., 24, 5279–5295,Short summary
There is a growing interest globally in the spatial distribution and temporal dynamics of intermittently flowing streams and rivers. We developed an approach to quantify catchment-wide flow intermittency over long time frames. Modelled patterns of flow intermittency in eastern Australia revealed highly dynamic behaviour in space and time. The developed approach is transferable to other parts of the world and can inform hydro-ecological understanding and management of intermittent streams.
Natasha MacBean, Russell L. Scott, Joel A. Biederman, Catherine Ottlé, Nicolas Vuichard, Agnès Ducharne, Thomas Kolb, Sabina Dore, Marcy Litvak, and David J. P. Moore
Hydrol. Earth Syst. Sci., 24, 5203–5230,
Yusen Yuan, Taisheng Du, Honglang Wang, and Lixin Wang
Hydrol. Earth Syst. Sci., 24, 4491–4501,Short summary
The isotopic composition of ambient water vapor is an important source of atmospheric water vapor and has not been able to be estimated to date using the Keeling plot approach. Here we proposed two new methods to estimate the isotopic composition of ambient water vapor: one using the intersection point method and another relying on the intermediate value theorem.
Valentin Couvreur, Youri Rothfuss, Félicien Meunier, Thierry Bariac, Philippe Biron, Jean-Louis Durand, Patricia Richard, and Mathieu Javaux
Hydrol. Earth Syst. Sci., 24, 3057–3075,Short summary
Isotopic labeling of soil water is a broadly used tool for tracing the origin of water extracted by plants and computing root water uptake (RWU) profiles with multisource mixing models. In this study, we show how a method such as this may misconstrue time series of xylem water isotopic composition as the temporal dynamics of RWU by simulating data collected during a tall fescue rhizotron experiment with an isotope-enabled physical soil–root model accounting for variability in root traits.
Thibault Hallouin, Michael Bruen, and Fiachra E. O'Loughlin
Hydrol. Earth Syst. Sci., 24, 1031–1054,Short summary
A hydrological model was used to compare different parameterisation strategies in view of predicting ecologically relevant streamflow indices in 33 Irish catchments. Compared for 14 different periods, a strategy fitting simulated and observed streamflow indices yielded better performance than fitting simulated and observed streamflow, but it also yielded a less consistent ensemble of parameter sets, suggesting that these indices may not be hydrologically relevant for model parameterisation.
Robert N. Armstrong, John W. Pomeroy, and Lawrence W. Martz
Hydrol. Earth Syst. Sci., 23, 4891–4907,Short summary
Digital and thermal images taken near midday were used to scale daily point observations of key factors driving actual-evaporation estimates across a complex Canadian Prairie landscape. Point estimates of actual evaporation agreed well with observed values via eddy covariance. Impacts of spatial variations on areal estimates were minor, and no covariance was found between model parameters driving the energy term. The methods can be applied further to improve land surface parameterisations.
Zhongkai Li, Hu Liu, Wenzhi Zhao, Qiyue Yang, Rong Yang, and Jintao Liu
Hydrol. Earth Syst. Sci., 23, 4685–4706,Short summary
A database of soil moisture measurements from the middle Heihe River basin of China was used to test the potential of a soil moisture database in estimating the soil water balance components (SWBCs). We determined SWBCs using a method that combined the soil water balance method and the inverse Richards equation. This work confirmed that relatively reasonable estimations of the SWBCs in coarse-textured sandy soils can be derived using soil moisture measurements.
Samuli Launiainen, Mingfu Guan, Aura Salmivaara, and Antti-Jussi Kieloaho
Hydrol. Earth Syst. Sci., 23, 3457–3480,Short summary
Boreal forest evapotranspiration and water cycle is modeled at stand and catchment scale using physiological and physical principles, open GIS data and daily weather data. The approach can predict daily evapotranspiration well across Nordic coniferous-dominated stands and successfully reproduces daily streamflow and annual evapotranspiration across boreal headwater catchments in Finland. The model is modular and simple and designed for practical applications over large areas using open data.
Regina T. Hirl, Hans Schnyder, Ulrike Ostler, Rudi Schäufele, Inga Schleip, Sylvia H. Vetter, Karl Auerswald, Juan C. Baca Cabrera, Lisa Wingate, Margaret M. Barbour, and Jérôme Ogée
Hydrol. Earth Syst. Sci., 23, 2581–2600,Short summary
We evaluated the system-scale understanding of the propagation of the oxygen isotope signal (δ18O) of rain through soil and xylem to leaf water in a temperate drought-prone grassland. Biweekly δ18O observations of the water pools made during seven growing seasons were accurately reproduced by the 18O-enabled process-based model MuSICA. While water uptake occurred from shallow soil depths throughout dry and wet periods, leaf water 18O enrichment responded to both soil and atmospheric moisture.
Christoph Schürz, Brigitta Hollosi, Christoph Matulla, Alexander Pressl, Thomas Ertl, Karsten Schulz, and Bano Mehdi
Hydrol. Earth Syst. Sci., 23, 1211–1244,Short summary
For two Austrian catchments we simulated discharge and nitrate-nitrogen (NO3-N) considering future changes of climate, land use, and point source emissions together with the impact of different setups and parametrizations of the implemented eco-hydrological model. In a comprehensive analysis we identified the dominant sources of uncertainty for the simulation of discharge and NO3-N and further examined how specific properties of the model inputs control the future simulation results.
Yu-Ting Shih, Pei-Hao Chen, Li-Chin Lee, Chien-Sen Liao, Shih-Hao Jien, Fuh-Kwo Shiah, Tsung-Yu Lee, Thomas Hein, Franz Zehetner, Chung-Te Chang, and Jr-Chuan Huang
Hydrol. Earth Syst. Sci., 22, 6579–6590,Short summary
DOC and DIC export in Taiwan shows that the annual DOC and DIC fluxes were 2.7–4.8 and 48.4–54.3 ton C km2 yr1, respectively, which were approximately 2 and 20 times higher than the global means of 1.4 and 2.6 ton C km2 yr1, respectively.
Zun Yin, Catherine Ottlé, Philippe Ciais, Matthieu Guimberteau, Xuhui Wang, Dan Zhu, Fabienne Maignan, Shushi Peng, Shilong Piao, Jan Polcher, Feng Zhou, Hyungjun Kim, and other China-Trend-Stream project members
Hydrol. Earth Syst. Sci., 22, 5463–5484,Short summary
Simulations in China were performed in ORCHIDEE driven by different forcing datasets: GSWP3, PGF, CRU-NCEP, and WFDEI. Simulated soil moisture was compared to several datasets to evaluate the ability of ORCHIDEE in reproducing soil moisture dynamics. Results showed that ORCHIDEE soil moisture coincided well with other datasets in wet areas and in non-irrigated areas. It suggested that the ORCHIDEE-MICT was suitable for further hydrological studies in China.
Matthias J. R. Speich, Heike Lischke, and Massimiliano Zappa
Hydrol. Earth Syst. Sci., 22, 4097–4124,Short summary
To simulate the water balance of, e.g., a forest plot, it is important to estimate the maximum volume of water available to plants. This depends on soil properties and the average depth of roots. Rooting depth has proven challenging to estimate. Here, we applied a model assuming that plants dimension their roots to optimize their carbon budget. We compared its results with values obtained by calibrating a dynamic water balance model. In most cases, there is good agreement between both methods.
Gordon C. O'Brien, Chris Dickens, Eleanor Hines, Victor Wepener, Retha Stassen, Leo Quayle, Kelly Fouchy, James MacKenzie, P. Mark Graham, and Wayne G. Landis
Hydrol. Earth Syst. Sci., 22, 957–975,Short summary
In global water resource allocation, robust tools are required to establish environmental flows. In addition, tools should characterize past, present and future consequences of altered flows and non-flow variables to social and ecological management objectives. PROBFLO is a risk assessment method designed to meet best practice principles for regional-scale holistic E-flow assessments. The approach has been developed in Africa and applied across the continent.
Katrina E. Bennett, Theodore J. Bohn, Kurt Solander, Nathan G. McDowell, Chonggang Xu, Enrique Vivoni, and Richard S. Middleton
Hydrol. Earth Syst. Sci., 22, 709–725,Short summary
We applied the Variable Infiltration Capacity hydrologic model to examine scenarios of change under climate and landscape disturbances in the San Juan River basin, a major sub-watershed of the Colorado River basin. Climate change coupled with landscape disturbance leads to reduced streamflow in the San Juan River basin. Disturbances are expected to be widespread in this region. Therefore, accounting for these changes within the context of climate change is imperative for water resource planning.
Fernando Jaramillo, Neil Cory, Berit Arheimer, Hjalmar Laudon, Ype van der Velde, Thomas B. Hasper, Claudia Teutschbein, and Johan Uddling
Hydrol. Earth Syst. Sci., 22, 567–580,Short summary
Which is the dominant effect on evapotranspiration in northern forests, an increase by recent forests expansion or a decrease by the water use response due to increasing CO2 concentrations? We determined the dominant effect during the period 1961–2012 in 65 Swedish basins. We used the Budyko framework to study the hydroclimatic movements in Budyko space. Our findings suggest that forest expansion is the dominant driver of long-term and large-scale evapotranspiration changes.
Jie Zhu, Ge Sun, Wenhong Li, Yu Zhang, Guofang Miao, Asko Noormets, Steve G. McNulty, John S. King, Mukesh Kumar, and Xuan Wang
Hydrol. Earth Syst. Sci., 21, 6289–6305,Short summary
Forested wetlands provide myriad ecosystem services threatened by climate change. This study develops empirical hydrologic models by synthesizing hydrometeorological data across the southeastern US. We used global climate projections to model hydrological changes for five wetlands. We found all wetlands are predicted to become drier by the end of this century. This study suggests that climate change may substantially affect wetland biogeochemical cycles and other functions in the future.
Guiomar Ruiz-Pérez, Julian Koch, Salvatore Manfreda, Kelly Caylor, and Félix Francés
Hydrol. Earth Syst. Sci., 21, 6235–6251,Short summary
Plants are shaping the landscape and controlling the hydrological cycle, particularly in arid and semi-arid ecosystems. Remote sensing data appears as an appealing source of information for vegetation monitoring, in particular in areas with a limited amount of available field data. Here, we present an example of how remote sensing data can be exploited in a data-scarce basin. We propose a mathematical methodology that can be used as a springboard for future applications.
Rui Rivaes, Isabel Boavida, José M. Santos, António N. Pinheiro, and Teresa Ferreira
Hydrol. Earth Syst. Sci., 21, 5763–5780,Short summary
We analyzed the influence of considering riparian requirements for the long-term efficiency of environmental flows. After a decade, environmental flows disregarding riparian requirements promoted riparian degradation and consequently the change in the hydraulic characteristics of the river channel and the modification of the available habitat area for fish species. Environmental flows regarding riparian vegetation requirements were able to sustain the fish habitat close to the natural condition.
José María Santiago, Rafael Muñoz-Mas, Joaquín Solana-Gutiérrez, Diego García de Jalón, Carlos Alonso, Francisco Martínez-Capel, Javier Pórtoles, Robert Monjo, and Jaime Ribalaygua
Hydrol. Earth Syst. Sci., 21, 4073–4101,Short summary
High-time-resolution models for streamflow and stream temperature are used in this study to predict future brown trout habitat loss. Flow reductions falling down to 51 % of current values and water temperature increases growing up to 4 ºC are predicted. Streamflow and temperature will act synergistically affecting fish. We found that the thermal response of rivers is influenced by basin geology and, consequently, geology will be also an influent factor in the cold-water fish distribution shift.
Mie Andreasen, Karsten H. Jensen, Darin Desilets, Marek Zreda, Heye R. Bogena, and Majken C. Looms
Hydrol. Earth Syst. Sci., 21, 1875–1894,Short summary
The cosmic-ray method holds a potential for quantifying canopy interception and biomass. We use measurements and modeling of thermal and epithermal neutron intensity in a forest to examine this potential. Canopy interception is a variable important to forest hydrology, yet difficult to monitor remotely. Forest growth impacts the carbon-cycle and can be used to mitigate climate changes by carbon sequestration in biomass. An efficient method to monitor tree growth is therefore of high relevance.
Jordi Cristóbal, Anupma Prakash, Martha C. Anderson, William P. Kustas, Eugénie S. Euskirchen, and Douglas L. Kane
Hydrol. Earth Syst. Sci., 21, 1339–1358,Short summary
Quantifying trends in surface energy fluxes is crucial for forecasting ecological responses in Arctic regions. An extensive evaluation using a thermal-based remote sensing model and ground measurements was performed in Alaska's Arctic tundra for 5 years. Results showed an accurate temporal trend of surface energy fluxes in concert with vegetation dynamics. This work builds toward a regional implementation over Arctic ecosystems to assess response of surface energy fluxes to climate change.
Chunwei Liu, Ge Sun, Steven G. McNulty, Asko Noormets, and Yuan Fang
Hydrol. Earth Syst. Sci., 21, 311–322,Short summary
The paper aimed at deriving Kc (AET/PET) for multiple vegetation types and understanding its environmental controls by analyzing the accumulated global eddy flux (FLUXNET) data. We established multiple linear equations for different land covers and seasons to model the dynamics of Kc as function of LAI, site latitude, and precipitation. Our study extended the applications of the traditional Kc method for estimating crop water use to estimating AET rates for natural ecosystems.
Xingguo Mo, Xuejuan Chen, Shi Hu, Suxia Liu, and Jun Xia
Hydrol. Earth Syst. Sci., 21, 295–310,Short summary
Attributing changes in ET and GPP is crucial to impact and adaptation assessment of climate change over the NCP. Simulations with the VIP ecohydrological model illustrated relative contributions of climatic change, CO2 fertilization, and management to ET and GPP. Global radiation was the cause of GPP decline in summer, while air warming intensified the water cycle and advanced plant productivity in spring. Agronomical improvement was the main driver of crop productivity enhancement.
Elham Rouholahnejad Freund and James W. Kirchner
Hydrol. Earth Syst. Sci., 21, 217–233,Short summary
Our analysis shows that averaging over sub-grid heterogeneity in precipitation and potential evapotranspiration (ET), as typical earth system models do, overestimates the average of the spatially variable ET. We also show when aridity index increases with altitude, lateral redistribution would transfer water from more humid uplands to more arid lowlands, resulting in a net increase in ET. Therefore, the Earth system models that neglect lateral transfer underestimate ET in those regions.
Simon Schmidt, Christine Alewell, Panos Panagos, and Katrin Meusburger
Hydrol. Earth Syst. Sci., 20, 4359–4373,Short summary
We present novel research on the seasonal dynamics of the impact of rainfall (R-factor) on the mobilization of topsoil as soil erosion by water for Switzerland. A modeling approach was chosen that enables the dynamical mapping of the R-factor. Based on the maps and modeling results, we could investigate the spatial and temporal distribution of that factor, which is high for Switzerland. With these results, agronomists can introduce selective erosion control measures.
Kaniska Mallick, Ivonne Trebs, Eva Boegh, Laura Giustarini, Martin Schlerf, Darren T. Drewry, Lucien Hoffmann, Celso von Randow, Bart Kruijt, Alessandro Araùjo, Scott Saleska, James R. Ehleringer, Tomas F. Domingues, Jean Pierre H. B. Ometto, Antonio D. Nobre, Osvaldo Luiz Leal de Moraes, Matthew Hayek, J. William Munger, and Steven C. Wofsy
Hydrol. Earth Syst. Sci., 20, 4237–4264,Short summary
While quantifying vegetation water use over multiple plant function types in the Amazon Basin, we found substantial biophysical control during drought as well as a water-stress period and dominant climatic control during a water surplus period. This work has direct implication in understanding the resilience of the Amazon forest in the spectre of frequent drought menace as well as the role of drought-induced plant biophysical functioning in modulating the water-carbon coupling in this ecosystem.
Masahiro Ryo, Marie Leys, and Christopher T. Robinson
Hydrol. Earth Syst. Sci., 20, 3411–3418,Short summary
We developed an analytical method to estimate thermal attributes (seasonal and diel periodicities as well as irregularities) in stream temperature at data-poor sites. We extrapolated the thermal attributes of a glacier-fed stream in the Swiss Alps using 2 years of hourly recorded temperature to the data-poor sites. The R scripts used in this study are available in the Supplement.
Maik Renner, Sibylle K. Hassler, Theresa Blume, Markus Weiler, Anke Hildebrandt, Marcus Guderle, Stanislaus J. Schymanski, and Axel Kleidon
Hydrol. Earth Syst. Sci., 20, 2063–2083,Short summary
We estimated forest transpiration (European beech) along a steep valley cross section. Atmospheric demand, obtained by the thermodynamic limit of maximum power, is the dominant control of transpiration at all sites. To our surprise we find that transpiration is rather similar across sites with different aspect (north vs. south) and different stand structure due to systematically varying sap velocities. Such a compensation effect is highly relevant for modeling and upscaling of transpiration.
Congsheng Fu, Guiling Wang, Michael L. Goulden, Russell L. Scott, Kenneth Bible, and Zoe G. Cardon
Hydrol. Earth Syst. Sci., 20, 2001–2018,Short summary
Hydraulic redistribution (HR) of plant root has important hydrological impact (on evapotranspiration, Bowen ratio, and soil moisture) in ecosystems that have a pronounced dry season but are not overall so dry that sparse vegetation and very low soil moisture limit HR.
Shanlei Sun, Ge Sun, Erika Cohen, Steven G. McNulty, Peter V. Caldwell, Kai Duan, and Yang Zhang
Hydrol. Earth Syst. Sci., 20, 935–952,Short summary
This study links an ecohydrological model with WRF (Weather Research and Forecasting Model) dynamically downscaled climate projections of the HadCM3 model under the IPCC SRES A2 emission scenario. Water yield and ecosystem productivity response to climate change were highly variable with an increasing trend across the 82 773 watersheds. Results are useful for policy-makers and land managers in formulating appropriate watershed-specific strategies for sustaining water and carbon sources.
M. K. van der Molen, R. A. M. de Jeu, W. Wagner, I. R. van der Velde, P. Kolari, J. Kurbatova, A. Varlagin, T. C. Maximov, A. V. Kononov, T. Ohta, A. Kotani, M. C. Krol, and W. Peters
Hydrol. Earth Syst. Sci., 20, 605–624,Short summary
Boreal Eurasia contains extensive forests, which play an important role in the terrestrial carbon cycle. Droughts can modify this cycle considerably, although very few ground-based observations are available in the region. We test whether satellite-observed soil moisture may be used to improve carbon cycle models in this region. This paper explains when and where this works best. The interpretation of satellite soil moisture is best in summer conditions, and is hampered by snow, ice and ponding.
E. S. Garcia and C. L. Tague
Hydrol. Earth Syst. Sci., 19, 4845–4858,Short summary
In forests of the western United States, annual evapotranspiration (ET) varies with precipitation and temperature; geologically mediated drainage and storage properties may influence the relationship between climate and ET. A process-based model is used to evaluate how water storage capacity influences model estimates of ET-climate relationships for three snow-dominated basins. Results show that uncertainty in subsurface properties can strongly influence model estimates of watershed-scale ET.
P. Fox, P. H. Hutton, D. J. Howes, A. J. Draper, and L. Sears
Hydrol. Earth Syst. Sci., 19, 4257–4274,Short summary
The development of California was facilitated by redistributing water from the natural landscape to other uses. This development was accompanied by declines in native aquatic species, which have been attributed to reductions in Delta outflow. By reconstructing the natural landscape and using water balances to estimate natural Delta outflow, this flow is shown to be consistent with current outflow on a long-term annual average basis.
Abad Vinas, R., Caudullo, G., Oliveira, S., and de Rigo, R.: Pinus pinaster in Europe: distribution, habitat, usage and threats, in: European Atlas of Forest Tree Species, edited by: San-Miguel-Ayanz, J., de Rigo, M. A., Caudullo, G., and Durant Houston, T., EU, Luxembourg, 2016.
Acácio, V. and Holmgreen, M.: Pathways for resilience in Mediterranean cork oak land use systems, Ann. Forest Sci., 71, 5–13, https://doi.org/10.1007/s13595-012-0197-0, 2014.
AghaKouchak, A., Farahmand, A., Melton, F. S., Teixeira, J., Anderson, M. C., Wardlow, B. D., and Hain C. R.: Remote sensing of drought: Progress, challenges and opportunities, Rev. Geophys., 53, 452–480, https://doi.org/10.1002/2014RG000456, 2015.
Aksoy, E., Louwagie, G., Gardi, C., Gregor, M., Schröder, C., and Löhnertz, M.: Assessing soil biodiversity potentials in Europe, Sci. Total Environ., 589, 236–249, https://doi.org/10.1016/j.scitotenv.2017.02.173, 2017.
Anderson, L. O., Malhi, Y., Aragão, L. E. O. C., Ladle, R., Arai, E., Barbier, N., and Phillips, O.: Remote sensing detection of droughts in Amazonian forest canopies, New Phytol., 187, 733–750, https://doi.org/10.1111/j.1469-8137.2010.03355.x, 2010.
Anselin, L., Ibnu, S., and Youngihn, K.: GeoDa: An Introduction to Spatial Data Analysis, Geogr. Anal., 38, 5–22, 2006.
Antunes, C., Chozas, S., West, J., Zunzunegui, M., Barradas, M. C. D., Vieira, S., and Máguas, C.: Groundwater drawdown drives ecophysiolog-ical adjustments of woody vegetation in a semi-arid coastal ecosystem, Global Change Biol., https://doi.org/10.1111/gcb.14403, in press, 2018.
APA: Plano de Gestão da Região Hidrográfica do Tejo. Parte 2 – Caracterização e Diagnóstico da Região Hidrográfica do Tejo e Ribeiras do Oeste (RH5), available at: https://apambiente.pt/_zdata/Politicas/Agua/PlaneamentoeGestao/PGRH/2016-2021/PTRH5A/PGRH5A_Parte2.pdf (last access: August 2019), 2016.
ARH Alentejo: Plano de Gestão das Bacias Hidrográficas integradas na RH7 – Parte 2, Ministério da Agricultura, Mar, Ambiente e Ordenamento do Território, Alentejo, Portugal, available at: https://sniambgeoviewer.apambiente.pt/Geodocs/geoportaldocs/Planos/PGRH7/VolumeI_Relatorio-CParte2-CTomo1-CP2_T1A_RH7_VF.pdf (last access: August 2019), 2012a.
ARH Alentejo: Planos de Gestão das Bacias Hidrográficas integradas na RH6 – Parte 2, Ambiente e Ordenamento do Território, Alentejo, Portugal, available at: https://sniambgeoviewer.apambiente.pt/Geodocs/geoportaldocs/Planos/PGRH6/RT_Especifico_CE-CRTE_RH6_T1A.pdf (last access: August 2019), 2012b.
Asrar, G. (Ed.): Estimation of plant-canopy attributes from spectral reflectance measurements, in: Theory and Applications of Optical Remote Sensing, John Wiley, New York, 252–296, 1989.
Autoridade Florestal Nacional and Ministério da Agricultura do Desenvolvimento Rural e das Pescas: 6∘ Inventário Florestal Nacional, Instituto da Conservação da Natureza e das Florestas, Lisboa, 2010.
Awada, T., Radoglou, K., Fotelli, M. N., and Constantinidou, H. I. A.: Ecophysiology of seedlings of three Mediterranean pine species in contrasting light regimes, Tree Physiol., 23, 33–41, 2003.
Barata, L. T., Saavedra, A., Cortez, N., and Varennes, A.: Cartografia da espessura efectiva dos solos de Portugal Continental, LEAF/ISA/ULisboa, available at: http://epic-webgis-portugal.isa.utl.pt/ (last access: 5 November 2017), 2015.
Barbero, M., Loisel, R., and Quézel, P.: Biogeography, ecology and history of Mediterranean Quercus ilex ecosystems, in: Quercus ilex L. ecosystems: function, dynamics and management, edited by: Romane, F. and Terradas, J., Springer Netherlands, Dordrecht, 19–34, 1992.
Barbeta, A. and Peñuelas, J.: Increasing carbon discrimination rates and depth of water uptake favor the growth of Mediterranean evergreen trees in the ecotone with temperate deciduous forests, Global Change Biol., 23, 5054–5068, https://doi.org/10.1111/gcb.13770, 2017.
Barbeta, A., Mejía-Chang, M., Ogaya, R., Voltas, J., Dawson, T. E., and Peñuelas, J.: The combined effects of a long-term experimental drought and an extreme drought on the use of plant-water sources in a Mediterranean forest, Global Change Biol., 21, 1213–1225, https://doi.org/10.1111/gcb.12785, 2015.
Barron, O. V., Emelyanova, I., Van Niel, T. G., Pollock, D., and Hodgson, G.: Mapping groundwater-dependent ecosystems using remote sensing measures of vegetation and moisture dynamics, Hydrol. Process., 28, 372–385, https://doi.org/10.1002/hyp.9609, 2014.
Beguería, S. and Vicente-Serrano, S. M.: SPEI: Calculation of the Standardized Precipitation-Evapotranspiration Index, R package version 1.6, available at: https://cran.r-project.org/web/packages/SPEI/index.html (last access: 29 July 2019), 2013.
Bertrand, R., Riofrío-Dillon, G., Lenoir, J., Drapier, J., de Ruffray, P., Gégout, J. C., and Loreau, M.: Ecological constraints increase the climatic debt in forests, Nat. Commun., 7, 12643, https://doi.org/10.1038/ncomms12643, 2016.
Bivand, R. S. and Yu, D.: spgwr: Geographically Weighted Regression, available at: https://cran.r-project.org/package=spgwr (last access: 18 January 2019), 2017.
Bivand, R. S., Pebesma, E. J., and Gómez-Rubio, V.: Applied Spatial Data Analysis with R, edited by: Gentleman, G. P. R. and Hornik, K., Springer, New York, 2008.
Bourke, L.: Growth trends and water use efficiency of Pinus pinaster Ait. in response to historical climate and groundwater trends on the Gnangara Mound, Western Australia, available at: http://ro.ecu.edu.au/theses_hons/141 (last access: 29 January 2018), 2004.
Bugalho, M. N., Plieninger, T., and Aronson, J.: Open woodlands: a diversity of uses (and overuses), in Cork oak woodlands on the edge, edited by: Aronson, J., Pereira, J. S., and Pausas, J. G., Island Press, Washington, D.C., 33–48, 2009.
Bugalho, M. N., Caldeira, M. C., Pereira, J. S., Aronson, J., and Pausas, G.: Mediterranean cork oak savannas require human use to sustain biodiversity and ecosystem services, Front. Ecol. Environ., 9, 278–286, https://doi.org/10.1890/100084, 2011.
Bussotti, F., Ferrini, F., Pollastrini, M., and Fini, A.: The challenge of Mediterranean sclerophyllous vegetation under climate change: From acclimation to adaptation, Environ. Exp. Bot., 103, 80–98, https://doi.org/10.1016/j.envexpbot.2013.09.013, 2013.
Cabon, A., Mouillot, F., Lempereur, M., Ourcival, J.-M., Simioni, G., and Limousin, J.-M.: Thinning increases tree growth by delaying drought-induced growth cessation in a Mediterranean evergreen oak coppice, Forest Ecol. Manage., 409, 333–342, https://doi.org/10.1016/j.foreco.2017.11.030, 2018.
Canadell, J., Jackson, R., Ehleringer, J., Mooney, H. A., Sala, O. E., and Schulze, E.-D.: Maximum rooting depth of vegetation types at the global scale, Oecologia, 108, 583–595, https://doi.org/10.1007/BF00329030, 1996.
Ceccato, P., Gobron, N., Flasse, S., Pinty, B., and Tarantola, S.: Designing a spectral index to estimate vegetation water content from remote sensing data: Part 1. Theoretical approach, Remote Sens. Environ., 82, 188–197, 2002a.
Ceccato, P., Flasse, S., and Gregoire, J.: Designing a spectral index to estimate vegetation water content from remote sensing data: Part 2. Validation and applications, Remote Sens. Environ., 82, 198–207, 2002b.
Cerasoli, S., Silva, F. C., and Silva, J. M. N.: Temporal dynamics of spectral bioindicators evidence biological and ecological differences among functional types in a cork oak open woodland, Int. J. Biometeorol., 60, 813–825, https://doi.org/10.1007/s00484-015-1075-x, 2016.
Chambel, A., Duque, J., and Nascimento, J.: Regional Study of Hard Rock Aquifers in Alentejo, South Portugal: Methodology and Results, in: IAH-Selected Papers on Hydrogeology Series, 1st Edn., edited by: Jirí Krásný, J. and Sharp, J. M., CRC Press, Taylor & Francis Group, London, 9, 73–93, https://doi.org/10.1201/9780203945650, 2007.
Chaves, M. M., Maroco, J. P., and Pereira, J. S.: Understanding plant responses to drought – from genes to the whole plant, Funct. Plant Biol., 30, 239–264, 2003.
Coelho, I. S. and Campos, P.: Mixed Cork Oak-Stone Pine Woodlands in the Alentejo Region of Portugal, in: Cork Oak Woodlands on the Edge – Ecology, Adaptive Management, and Restoration, edited by: Aronson, J., Pereira, J. S., Uli, J., and Pausas, G., Island Press, Washington, 153–159, 2009.
Condesso de Melo, M. T., Nascimento, J., Silva, A. C., Mendes, M. P., Buxo, A., and Ribeiro, L.: Desenvolvimento de uma metodologia e preparação do respetivo guia metodológico para a identificação e caracterização, a nível nacional, dos ecossistemas terrestres dependentes das águas subterrâneas (ETDAS), Relatório de projeto realizado para a Agência Portuguesa do Ambiente (APA), Lisboa, 2015.
Condon, L. E. and Maxell, R. M.: Water resources research, Water Resour. Res., 51, 6602–6621, https://doi.org/10.1002/2014WR016259, 2015.
Costa, A., Madeira, M., and Oliveira, C.: The relationship between cork oak growth patterns and soil, slope and drainage in a cork oak woodland in Southern Portugal, Forest Ecol. Manage., 255, 1525–1535, https://doi.org/10.1016/j.foreco.2007.11.008, 2008.
David, T. S., Ferreira, M. I., Cohen, S., Pereira, J. S., and David, J. S.: Constraints on transpiration from an evergreen oak tree in southern Portugal, Agr. Forest Meteorol., 122, 193–205, https://doi.org/10.1016/j.agrformet.2003.09.014, 2004.
David, T. S., Henriques, M. O., Kurz-Besson, C., Nunes, J., Valente, F., Vaz, M., Pereira, J. S., Siegwolf, R., Chaves, M. M., Gazarini, L. C., and David, J. S.: Water-use strategies in two co-occurring Mediterranean evergreen oaks: surviving the summer drought, Tree Physiol., 27, 793–803, https://doi.org/10.1093/treephys/27.6.793, 2007.
David, T. S., Pinto, C. A., Nadezhdina, N., Kurz-Besson, C., Henriques, M. O., Quilhó, T., Cermak, J., Chaves, M. M., Pereira, J. S., and David, J. S.: Root functioning, tree water use and hydraulic redistribution in Quercus suber trees: A modeling approach based on root sap flow, Forest Ecol. Manage., 307, 136–146, https://doi.org/10.1016/j.foreco.2013.07.012, 2013.
Dawson, T. E.: Hydraulic lift and water use by plants: implications for water balance, performance and plant-plant interactions, Oecology, 95, 565–574, 1993.
del Castillo, J., Comas, C., Voltas, J., and Ferrio, J. P.: Dynamics of competition over water in a mixed oak-pine Mediterranean forest: Spatio-temporal and physiological components, Forest Ecol. Manage., 382, 214–224, https://doi.org/10.1016/j.foreco.2016.10.025, 2016.
de Sarmento, E. M. and Dores, V.: The performance of the forestry sector and its relevance for the portuguese economy, Rev. Port. Estud. Reg., 34, 35–50, 2013.
Dinis, C. O.: Cork oak (Quercus suber L.) root system: a structural-functional 3D approach, PhD Thesis, Universidade de Évora Évora, Portugal, 2014.
Döll, P.: Vulnerability to the impact of climate change on renewable groundwater resources: a global- scale assessment, Environ. Res. Lett., 4, 35006–35012, https://doi.org/10.1088/1748-9326/4/3/035006, 2009.
Doody, T. M., Barron, O. V., Dowsley, K., Emelyanova, I., Fawcett, J., Overton, I. C., Pritchard, J. L., Van Dijk, A. I. J. M., and Warren, G.: Continental mapping of groundwater dependent ecosystems: A methodological framework to integrate diverse data and expert opinion, J. Hydrol. Reg. Stud., 10, 61–81, https://doi.org/10.1016/j.ejrh.2017.01.003, 2017.
Dresel, P. E., Clark, R., Cheng, X., Reid, M., Terry, A., Fawcett, J., and Cochrane, D.: Mapping Terrestrial Groundwater Dependent Ecosystems: Method Development and Example Output, Victoria Department of Primary Industries, Melbourne, VIC, 66 pp., 2010.
Duque-Lazo, J., Navarro-Cerrillo, R. M., and Ruíz-Gómez, F. J.: Assessment of the future stability of cork oak (Quercus suber L.) afforestation under climate change scenarios in Southwest Spain, Forest Ecol. Manage., 409, 444–456, https://doi.org/10.1016/j.foreco.2017.11.042, 2018.
Eamus, D., Froend, R., Loomes, R., Hose, G., and Murray, B.: A functional methodology for determining the groundwater regime needed to maintain the health of groundwater-dependent vegetation, Aust. J. Bot., 54, 97–114, https://doi.org/10.1071/BT05031, 2006.
Eamus, D., Zolfaghar, S., Villalobos-Vega, R., Cleverly, J., and Huete, A.: Groundwater-dependent ecosystems: Recent insights from satellite and field-based studies, Hydrol. Earth Syst. Sci., 19, 4229–4256, https://doi.org/10.5194/hess-19-4229-2015, 2015.
Ertürk, A., Ekdal, A., Gürel, M., Karakaya, N., Guzel, C., and Gönenç, E.: Evaluating the impact of climate change on groundwater resources in a small Mediterranean watershed, Sci. Total Environ., 499, 437–447, https://doi.org/10.1016/j.scitotenv.2014.07.001, 2014.
Evaristo, J. and McDonnell, J. J.: Prevalence and magnitude of groundwater use by vegetation: a global stable isotope meta-analysis, Sci. Rep., 7, 44110, https://doi.org/10.1038/srep44110, 2017.
Fan, Y., Macho, G. M., Jobbágy, E. G., Jackson, R. B., and Otero-Casal, C.: Hydrologic regulation of plant rooting depth, P. Natl Acad. Sci. USA, 114, 10572–10577, https://doi.org/10.1073/pnas.1712381114, 2017.
FAO: Adaptation to climate change in agriculture, forestry and fisheries: Perspective, framework and priorities, FAO, Rome, 2007.
FAO, IIASA, ISRIC, ISS-CAS, and JRC: Harmonized World Soil Database (version 1.1), Laxenburg, Austria, 2009.
Fernandes, N. P.: Ecossistemas Dependentes de Água Subterrânea no Algarve – Contributo para a sua Identificação e Caracterização, University of Algarve, Faro, 2013.
Ferreira, M. I., Green, S., Conceição, N., and Fernández, J.-E.: Assessing hydraulic redistribution with the compensated average gradient heat-pulse method on rain-fed olive trees, Plant Soil, 425, 21–41, https://doi.org/10.1007/s11104-018-3585-x, 2018.
Filella, I. and Peñuelas, J.: Indications of hydraulic lift by Pinus halepensis and its effects on the water relations of neighbour shrubs, Biol. Plant., 47, 209–214, https://doi.org/10.1023/B:BIOP.0000022253.08474.fd, 2004.
Gao, B. C.: NDWI – A normalized difference water index for remote sensing of vegetation liquid water from space, Remote Sens. Environ., 58, 257–266, 1996.
Gentilesca, T., Camarero, J. J., Colangelo, M., Nolè, A., and Ripullone, F.: Drought-induced oak decline in the western Mediterranean region: an overview on current evidences, mechanisms and management options to improve forest resilience, iForest, 10, 796–806, https://doi.org/10.3832/ifor2317-010, 2017.
Giorgi, F. and Lionello, P.: Climate change projections for the Mediterranean region, Global Planet. Change, 63, 90–104, https://doi.org/10.1016/j.gloplacha.2007.09.005, 2008.
Gond, V., Bartholome, E., Ouattara, F., Nonguierma, A., and Bado, L.: Surveillance et cartographie des plans d'eau et des zones humides et inondables en regions arides avec l'instrument VEGETATION embarqué sur SPOT-4, Int. J. Remote Sens., 25, 987–1004, 2004.
Gonzalez, P.: Desertification and a shift of forest species in the West African Sahel, Clim. Res., 17, 217–228, 2001.
Gouveia, A. and Freitas, H.: Intraspecific competition and water use efficiency in Quercus suber: evidence of an optimum tree density?, Trees, 22, 521–530, 2008.
Gouveia, C., Trigo, R. M., and DaCamara, C. C.: Drought and vegetation stress monitoring in Portugal using satellite data, Nat. Hazards Earth Syst. Sci., 9, 185–195, https://doi.org/10.5194/nhess-9-185-2009, 2009.
Gouveia, C. M., Bastos, A., Trigo, R. M., and DaCamara, C. C.: Drought impacts on vegetation in the pre- and post-fire events over Iberian Peninsula, Nat. Hazards Earth Syst. Sci., 12, 3123–3137, https://doi.org/10.5194/nhess-12-3123-2012, 2012.
Grant, O. M., Tronina, L., Ramalho, J. C., Besson, C. K., Lobo-do-Vale, R., Pereira, J. S., Jones, H. G., and Chaves, M. M.: The impact of drought on leaf physiology of Quercus suber L. trees: comparison of an extreme drought event with chronic rainfall reduction, J. Exp. Bot., 61, 4361–4371, https://doi.org/10.1093/jxb/erq239, 2010.
Griffith, D. A. (Ed.): Spatial Autocorrelation, Elsevier Inc, Texas, 2009.
Grossiord, C., Sevanto, S., Dawson, T. E., Adams, H. D., Collins, A. D., Dickman, L. T., Newman, B. D., Stockton, E. A., and Mcdowell, N. G.: Warming combined with more extreme precipitation regimes modifies the water sources used by trees, New Phytol., 213, 584–596, https://doi.org/10.1111/nph.14192, 2016.
Gu, Y., Brown, J. F., Verdin, J. P., and Wardlow, B.: A five-year analysis of MODIS NDVI and NDWI for grassland drought assessment over the central Great Plains of the United States, Geophys. Res. Lett., 34, L06407, https://doi.org/10.1029/2006GL029127, 2007.
Guisan, A. and Thuiller, W.: Predicting species distribution: Offering more than simple habitat models, Ecol. Lett., 8, 993–1009, https://doi.org/10.1111/j.1461-0248.2005.00792.x, 2005.
Hagolle, O., Lobo, A., Maisongrande, P., Duchemin, B., and De Pereira, A.: Quality assessment and improvement of SPOT/VEGETATION level temporally composited products of remotely sensed imagery by combination of VEGETATION 1 and 2 images, Remote Sens. Environ., 94, 172–186, 2005.
Haylock, M. R., Hofstra, N., Klein Tank, A. M. G., Klok, E. J., Jones, P. D., and New, M.: A European daily high-resolution gridded data set of surface temperature and precipitation for 1950–2006, J. Geophys. Res.-Atmos., 113, D20119, https://doi.org/10.1029/2008JD010201, 2008.
Hernández-Santana, V., David, T. S., and Martínez-Fernández, J.: Environmental and plant-based controls of water use in a Mediterranean oak stand, Forest Ecol. Manage., 255, 3707–3715, https://doi.org/10.1016/j.foreco.2008.03.004, 2008.
Horton, J. L. and Hart, S. C.: Hydraulic lift: a potentially important ecosystem process, Tree, 13, 232–235, https://doi.org/10.1016/S0169-5347(98)01328-7, 1998.
Howard, J. and Merrifield, M.: Mapping groundwater dependent ecosystems in California, PLoS One, 5, e11249, https://doi.org/10.1371/journal.pone.0011249, 2010.
Hu, X., Zhang, L., Ye, L., Lin, Y., and Qiu, R.: Locating spatial variation in the association between road network and forest biomass carbon accumulation, Ecol. Indic., 73, 214–223, https://doi.org/10.1016/j.ecolind.2016.09.042, 2017.
Huntsinger, L. and Bartolome, J. W.: Ecological dynamics of Quercus dominated woodlands in California and southern Spain: A state transition model, Vegetation, 99–100, 299–305, 1992.
ICNF: IFN6 – Áreas dos usos do solo e das espécies florestais de Portugal continental, Resultados preliminares, Lisboa, 2013.
Iglesias, A., Garrote, L., Flores, F., and Moneo, M.: Challenges to manage the risk of water scarcity and climate change in the Mediterranean, Water Resour. Manage., 21, 775–788, https://doi.org/10.1007/s11269-006-9111-6, 2007.
Joffre, R., Rambal, S., and Ratte, J. P.: The dehesa system of southern Spain and Portugal as a natural ecosystem mimic, Agrofor. Syst., 45, 57–79, https://doi.org/10.1023/a:1006259402496, 1999.
Kühn, I.: Incorporating spatial autocorrelation may invert observed patterns, Div. Dist., 13, 66–69, https://doi.org/10.1111/j.1472-4642.2006.00293.x, 2007.
Kurz-Besson, C., Otieno, D., Lobo Do Vale, R., Siegwolf, R., Schmidt, M., Herd, A., Nogueira, C., David, T. S., David, J. S., Tenhunen, J., Pereira, J. S., and Chaves, M.: Hydraulic lift in cork oak trees in a savannah-type Mediterranean ecosystem and its contribution to the local water balance, Plant Soil, 282, 361–378, https://doi.org/10.1007/s11104-006-0005-4, 2006.
Kurz-Besson, C., Lobo-do-Vale, R., Rodrigues, M. L., Almeida, P., Herd, A., Grant, O. M., David, T. S., Schmidt, M., Otieno, D., Keenan, T. F., Gouveia, C., Mériaux, C., Chaves, M. M., and Pereira, J. S.: Cork oak physiological responses to manipulated water availability in a Mediterranean woodland, Agr. Forest Meteorol., 184, 230–242, https://doi.org/10.1016/j.agrformet.2013.10.004, 2014.
Kurz-Besson, C., Lousada, J. L., Gaspar, M. J., Correia, I. E., David, T. S., Soares, P. M. M., Cardoso, R. M., Russo, A., Varino, F., Mériaux, C., Trigo, R. M., and Gouveia, C. M.: Effects of recent minimum temperature and water deficit increases on Pinus pinaster radial growth and wood density in southern Portugal, Front. Plant Sci., 7, 1170, https://doi.org/10.3389/fpls.2016.01170, 2016.
Li, Y., Jiao, Y., and Browder, J. A.: Modeling spatially-varying ecological relationships using geographically weighted generalized linear model: A simulation study based on longline seabird bycatch, Fish. Res., 181, 14–24, https://doi.org/10.1016/j.fishres.2016.03.024, 2016.
Lloret, F., Siscart, D., and Dalmases, C.: Canopy recovery after drought dieback in holm-oak Mediterranean forests of Catalonia (NE Spain), Global Change Biol., 10, 2092–2099, https://doi.org/10.1111/j.1365-2486.2004.00870.x, 2004.
López, B., Sabaté, S., Ruiz, I., and Gracia, C.: Effects of Elevated CO2 and Decreased Water Availability on Holm-Oak Seedlings in Controlled Environment Chambers, in: Impacts of Global Change on Tree Physiology and Forest Ecosystems: Proceedings of the International Conference on Impacts of Global Change on Tree Physiology and Forest Ecosystems, held 26–29 November 1996, Wageningen, the Netherlands, edited by: Mohren, G. M. J., Kramer, K., and Sabaté, S., Springer Netherlands, Dordrecht, 125–133, 1997.
Lorenzo-Lacruz, J., Garcia, C., and Morán-Tejeda, E.: Groundwater level responses to precipitation variability in Mediterranean insular aquifers, J. Hydrol., 552, 516–531, https://doi.org/10.1016/j.jhydrol.2017.07.011, 2017.
Lowry, C. S. and Loheide, S. P.: Groundwater-dependent vegetation: Quantifying the groundwater subsidy, Water Resour. Res., 46, W06202, https://doi.org/10.1029/2009WR008874, 2010.
Lv, J., Wang, X. S., Zhou, Y., Qian, K., Wan, L., Eamus, D., and Tao, Z.: Groundwater-dependent distribution of vegetation in Hailiutu River catchment, a semi-arid region in China, Ecohydrology, 6, 142–149, https://doi.org/10.1002/eco.1254, 2013.
Maki, M., Ishiahra, M., and Tamura, M.: Estimation of leaf water status to monitor the risk of forest fires by using remotely sensed data, Remote Sens. Environ., 90, 441–450, 2004.
Mazziotta, A., Heilmann-Clausen, J., Bruun, H. H., Fritz, Ö., Aude, E., and Tøttrup, A. P.: Restoring hydrology and old-growth structures in a former production forest: Modelling the long-term effects on biodiversity, Forest Ecol. Manage., 381, 125–133, https://doi.org/10.1016/j.foreco.2016.09.028, 2016.
Mckee, T. B., Doesken, N. J., and Kleist, J.: The relationship of drought frequency and duration to time scales, in: AMS 8th Conference on Applied Climatology, 17–22 January 1993, California, 179–184, 1993.
Mendes, M. P., Ribeiro, L., David, T. S., and Costa, A.: How dependent are cork oak (Quercus suber L.) woodlands on groundwater? A case study in southwestern Portugal, Forest Ecol. Manage., 378, 122–130, https://doi.org/10.1016/j.foreco.2016.07.024, 2016.
Middleton, N., Thomas, D. S. G., and Programme, U. N. E.: World atlas of desertification, UNEP, London, 1992.
Miller, G. R., Chen, X., Rubin, Y., Ma, S., and Baldocchi, D. D.: Groundwater uptake by woody vegetation in a semiarid oak savanna, Water Resour. Res., 46, W10503, https://doi.org/10.1029/2009WR008902, 2010.
Ministério da Agricultura do Mar do Ambiente e do Ordenamento do Território: Estratégia de Adaptação da Agricultura e das Florestas às Alterações Climáticas, Lisbon, 2013.
Montero, G., Ruiz-Peinado, R., Candela, J. A., Canellas, I., Gutierrez, M., Pavon, J., Alonso, A., Rio, M. D., Bachiller, A., and Calama, R.: El pino pinonero (Pinus pinea L.) en Andalucia, in: Ecologia, distribucion y selvicultura, edited by: Montero, G., Candela, J. A., and Rodriguez, A., Consejeria de Medio Ambiente, Junta de Andalucia, Sevilla, 2004.
Moran, P. A. P.: Notes on continuous stochastic phenomena, Biometrika, 37, 17–23, https://doi.org/10.1093/biomet/37.1-2.17, 1950.
Mourato, S., Moreira, M., and Corte-Real, J.: Water resources impact assessment under climate change scenarios in Mediterranean watersheds, Water Resour. Manage., 29, 2377–2391, https://doi.org/10.1007/s11269-015-0947-5, 2015.
Münch, Z. and Conrad, J.: Remote sensing and GIS based determination of groundwater dependent ecosystems in the Western Cape, South Africa, Hydrogeol. J., 15, 19–28, https://doi.org/10.1007/s10040-006-0125-1, 2007.
Nadezhdina, N., Ferreira, M. I., Conceição, N., Pacheco, C. A., Häusler, M., and David, T. S.: Water uptake and hydraulic redistribution under a seasonal climate: Long-term study in a rainfed olive orchard, Ecohydrology, 8, 387–397, https://doi.org/10.1002/eco.1545, 2015.
Naumburg, E., Mata-Gonzalez, R., Hunter, R., McLendon, T., and Martin, D.: Phreatophytic vegetation and groundwater fluctuations: a review of current research and application of ecosystem response modelling with an emphasis on Great Basin vegetation, Environ. Manage., 35, 726–740, 2005.
Neumann, R. B. and Cardon, Z. G.: The magnitude of hydraulic redistribution by plant roots: a review and synthesis of empirical and modeling studies, New Phytol., 194, 337–352, https://doi.org/10.1111/j.1469-8137.2012.04088.x, 2012.
O'Grady, A. P., Eamus, D., Cook, P. G., and Lamontagne, S.: Groundwater use by riparian vegetation in the wet–dry tropics of northern Australia, Aust. J. Bot., 54, 145–154, https://doi.org/10.1071/BT04164, 2006.
Orellana, F., Verma, P., Loheide, S. P., and Daly, E.: Monitoring and modeling water–vegetation interactions in groundwater-dependent ecosystems, Rev. Geophys., 50, RG3003, https://doi.org/10.1029/2011RG000383, 2012.
Otieno, D. O., Kurz-Besson, C., Liu, J., Schmidt, M. W. T., Do, R. V. L., David, T. S., Siegwolf, R., Pereira, J. S., and Tenhunen, J. D.: Seasonal variations in soil and plant water status in a Quercus suber L. stand: Roots as determinants of tree productivity and survival in the Mediterranean-type ecosystem, Plant Soil, 283, 119–135, https://doi.org/10.1007/s11104-004-7539-0, 2006.
Paço, T. A., David, T. S., Henriques, M. O.; Pereira, J. S., Valente, F., Banza, J., Pereira, F. L., Pinto, C., and David, J. S.: Evapotranspiration from a Mediterranean evergreen oak savannah: The role of trees and pasture, J. Hydrol., 369, 98–106, https://doi.org/10.1016/j.jhydrol.2009.02.011, 2009.
Paulo, J. A., Palma, J. H. N., Gomes, A. A., Faias, S. P., Tomé, J., and Tomé, M.: Predicting site index from climate and soil variables for cork oak (Quercus suber L.) stands in Portugal, New Forests, 46, 293–307, https://doi.org/10.1007/s11056-014-9462-4, 2015.
Peel, M. C., Finlayson, B. L., and McMahon, T. A.: Updated World Map of the Köppen–Geiger Climate Classification, Hydrol. Earth Syst. Sci., 11, 1633–1644, https://doi.org/10.5194/hess-11-1633-2007, 2007.
Peñuelas, J. and Filella, I.: Deuterium labelling of roots provides evidence of deep water access and hydraulic lift by Pinus nigra in a Mediterranean forest of NE Spain, Environ. Exp. Bot., 49, 201–208, https://doi.org/10.1016/S0098-8472(02)00070-9, 2003.
Pérez Hoyos, I., Krakauer, N., Khanbilvardi, R., and Armstrong, R.: A Review of advances in the identification and characterization of groundwater dependent ecosystems using geospatial technologies, Geosciences, 6, 17, https://doi.org/10.3390/geosciences6020017, 2016a.
Pérez Hoyos, I., Krakauer, N., and Khanbilvardi, R.: Estimating the probability of vegetation to be groundwater dependent based on the evaluation of tree models, Environments, 3, 9, https://doi.org/10.3390/environments3020009, 2016b.
Pinto, C., Nadezhdina, N., David, J. S., Kurz-Besson, C., Caldeira, M. C., Henriques, M. O., Monteiro, F., Pereira, J. S., David, and T. S.: Transpiration in Quercus suber trees under shallow water table conditions: the role of soil and groundwater, Hydrol. Process., 28, 6067–6079, https://doi.org/10.1002/hyp.10097, 2013.
Pinto-Correia, T., Ribeiro, N., and Sá-Sousa, P.: Introducing the montado, the cork and holm oak agroforestry system of Southern Portugal, Agrofor. Syst., 82, 99–104, https://doi.org/10.1007/s10457-011-9388-1, 2011.
QGIS Development Team: QGIS Geographic Information System, Open Source Geospatial Foundation Project, available at: http://qgis.osgeo.org (last access: 29 February 2016), 2017.
R Development Core Team: R: A language and environment for statistical computing, R Foundation for Statistical Computing, Vienna, Austria, 2016.
Rivas-Martínez, S., Rivas-Sáenz, S., and Penas-Merino, A.: Worldwide bioclimatic classification system, Global Geobot., 1, 1–638, https://doi.org/10.5616/gg110001, 2011.
Robinson, T. W.: Phreatophytes, United States Geol. Surv. Water-Supply Pap. 1423, US Geological Survey, Washington, 92 pp., 1958.
Rodrigues, C. M., Moreira, M., and Guimarães, R. C.: Apontamentos para as aulas de hidrologia, Universidade de Évora, Évora, Portugal, 2011.
Sabaté, S., Gracia, C. A., and Sánchez, A.: Likely effects of climate change on growth of Quercus ilex, Pinus halepensis, Pinus pinaster, Pinus sylvestris and Fagus sylvatica forests in the Mediterranean region, Forest Ecol. Manage., 162, 23–37, https://doi.org/10.1016/S0378-1127(02)00048-8, 2002.
Salinas, M. J., Blanca, G., and Romero, A. T.: Riparian vegetation and water chemistry in a basin under semiarid Mediterranean climate, Andarax River, Spain, Environ. Manage., 26, 539–552, 2000.
Sardans, J. and Peñuelas, J.: Increasing drought decreases phosphorus availability in an evergreen Mediterranean forest, Plant Soil, 267, 367–377, https://doi.org/10.1007/s11104-005-0172-8, 2004.
Schenk, H. J. and Jackson, R. B.: Rooting depths, lateral root spreads and belowground aboveground allometries of plants in water limited ecosystems, J. Ecol., 90, 480–494, https://doi.org/10.1046/j.1365-2745.2002.00682.x, 2002.
Silva, J. S. and Rego, F. C.: Root to shoot relationships in Mediterranean woody plants from Central Portugal, Biologia, 59, 109–115, 2004.
Singer, M. B., Stella, J. C., Dufour, S., Piégay, H., Wilson, R. J. S., and Johnstone, L.: Contrasting water-uptake and growth responses to drought in co-occurring riparian tree species, Ecohydrology, 6, 402–412, https://doi.org/10.1002/eco.1283, 2012.
Soares, P. M. M., Cardoso, R. M., Ferreira, J. J., and Miranda, P. M. A.: Climate change and the Portuguese precipitation: ENSEMBLES regional climate models results, Clim. Dynam., 45, 1771–1787, https://doi.org/10.1007/s00382-014-2432-x, 2015.
Soares, P. M. M., Cardoso, R. M., Lima, D. C. A., and Miranda, P. M. A.: Future precipitation in Portugal: high-resolution projections using WRF model and EURO-CORDEX multi-model ensembles, Clim. Dynam., 49, 2503–2530, https://doi.org/10.1007/s00382-016-3455-2, 2017.
Spinoni, J., Vogt, J. V., Naumann, G., Barbosa, P., and Dosio, A.: Will drought events become more frequent and severe in Europe?, Int. J. Climatol., 38, 1718–1736, https://doi.org/10.1002/joc.5291, 2017.
Stewart Fotheringham, A., Charlton, M., and Brunsdon, C.: The geography of parameter space: an investigation of spatial non-stationarity, Int. J. Geogr. Inf. Syst., 10, 605–627, https://doi.org/10.1080/02693799608902100, 1996.
Stigter, T. Y., Nunes, J. P., Pisani, B., Fakir, Y., Hugman, R., Li, Y., Tomé, S., Ribeiro, L., Samper, J., Oliveira, R., Monteiro, J. P., Silva, A., Tavares, P. C. F., Shapouri, M., Cancela da Fonseca, L., and El Himer, H.: Comparative assessment of climate change and its impacts on three coastal aquifers in the Mediterranean, Reg. Environ. Change, 14, 41–56, https://doi.org/10.1007/s10113-012-0377-3, 2014.
Stone, E. L. and Kalisz, P. J.: On the maximum extent of tree roots, Forest Ecol. Manage., 46, 59–102, https://doi.org/10.1016/0378-1127(91)90245-Q, 1991.
Thornthwaite, C. W.: An approach toward a rational classification of climate, Geogr. Rev., 38, 55–94, 1948.
Tian, W., Song, J., Li, Z., and de Wilde, P.: Bootstrap techniques for sensitivity analysis and model selection in building thermal performance, Appl. Energ., 135, 320–328, https://doi.org/10.1016/j.apenergy.2014.08.110, 2014.
Valentini, R., Scarascia, G. E., and Ehleringer, J. R.: Hydrogen and carbon isotope ratios of selected species of a Mediterranean macchia ecosystem, Funct. Ecol., 6, 627–631, 1992.
Vicente-Serrano, S. M., Beguería, S., and López-Moreno, J. I.: A multiscalar drought index sensitive to global warming: The standardized precipitation evapotranspiration index, J. Climate, 23, 1696–1718, https://doi.org/10.1175/2009JCLI2909.1, 2010.
Vicente-Serrano, S. M., Gouveia, C., Camarero, J. J., Begueria, S., Trigo, R., Lopez-Moreno, J. I., Azorin-Molina, C., Pasho, E., Lorenzo-Lacruz, J., Revuelto, J., Moran-Tejeda, E., and Sanchez-Lorenzo, A.: Response of vegetation to drought time-scales across global land biomes, P. Natl. Acad. Sci. USA, 110, 52–57, https://doi.org/10.1073/pnas.1207068110, 2013.
Vörösmarty, C. J., Green, P., Salisbury, J., and Lammers, R. B.: Global water resources: Vulnerability from climate change and population growth, Science, 289, 284–288, https://doi.org/10.1126/science.289.5477.284, 2000.
Waroux, Y. P. and Lambin, E. F.: Monitoring degradation in arid and semi-arid forests and woodlands: The case of the argan woodlands (Morocco), Appl. Geogr., 32, 777–786, https://doi.org/10.1016/j.apgeog.2011.08.005, 2012.
Xiao, R., He, X., Zhang, Y., Ferreira, V. G., and Chang, L.: Monitoring groundwater variations from satellite gravimetry and hydrological models: A comparison with in-situ measurements in the mid-atlantic region of the United States, Remote Sensing, 7, 686–703, https://doi.org/10.3390/rs70100686, 2015.
Zomer, R., Trabucco, A., Coe, R., and Place, F.: Trees on farm: analysis of global extent and geographical patterns of agroforestry, ICRAF Working Paper, World Agroforestry Centre, Nairobi, Kenya, https://doi.org/10.5716/WP16263.PDF, 2009.
Zou, C. B., Barnes, P. W., Archer, S., and Mcmurtry, C. R.: Soil moisture redistribution as a mechanism of facilitation in savanna tree–shrub clusters, Ecophysiology, 145, 32–40, https://doi.org/10.1007/s00442-005-0110-8, 2005.
Mediterranean cork woodlands are very particular agroforestry systems present in a confined area of the Mediterranean Basin. They are of great importance due to their high socioeconomic value; however, a decrease in water availability has put this system in danger. In this paper we build a model that explains this system's tree-species distribution in southern Portugal from environmental variables. This could help predict their future distribution under changing climatic conditions.
Mediterranean cork woodlands are very particular agroforestry systems present in a confined area...