Articles | Volume 19, issue 5
https://doi.org/10.5194/hess-19-2377-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/hess-19-2377-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
20 May 2015
Research article |
| 20 May 2015
Interacting effects of climate and agriculture on fluvial DOM in temperate and subtropical catchments
Department of Bioscience, Aarhus University, Aarhus, Denmark
G. Goyenola
Department of Bioscience, Aarhus University, Aarhus, Denmark
Centro Universitario Regional Este, Facultad de Ciencias, Universidad de la Repũblica, Maldonado, Uruguay
M. Meerhoff
Centro Universitario Regional Este, Facultad de Ciencias, Universidad de la Repũblica, Maldonado, Uruguay
E. Zwirnmann
Chemical Analytics and Biogeochemistry, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
N. B. Ovesen
Department of Bioscience, Aarhus University, Aarhus, Denmark
M. Glendell
Geography, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
J. Gelbrecht
Chemical Analytics and Biogeochemistry, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
F. Teixeira de Mello
Centro Universitario Regional Este, Facultad de Ciencias, Universidad de la Repũblica, Maldonado, Uruguay
I. González-Bergonzoni
Department of Bioscience, Aarhus University, Aarhus, Denmark
Centro Universitario Regional Este, Facultad de Ciencias, Universidad de la Repũblica, Maldonado, Uruguay
Sino-Danish Centre for Education and Research, Beijing, China
E. Jeppesen
Department of Bioscience, Aarhus University, Aarhus, Denmark
Sino-Danish Centre for Education and Research, Beijing, China
B. Kronvang
Department of Bioscience, Aarhus University, Aarhus, Denmark
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In the present study we combined measurements of dissolved inorganic carbon (DIC) isotopes with a set of different geochemical and microbiological methods in order to get a comprehensive view of biogeochemical cycling and groundwater flow in two limestone aquifer assemblages. This allowed us to understand interactions and feedbacks between microbial communities, their carbon sources, and water chemistry.
Anna Lupon, Susana Bernal, Sílvia Poblador, Eugènia Martí, and Francesc Sabater
Hydrol. Earth Syst. Sci., 20, 3831–3842, https://doi.org/10.5194/hess-20-3831-2016, https://doi.org/10.5194/hess-20-3831-2016, 2016
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The influence of riparian evapotranspiration (ET) on stream hydrology and chemistry is poorly understood. We investigated temporal changes in riparian ET, stream discharge and nutrient chemistry along a Mediterranean catchment. Despite being a small component of annual water budgets (4.5 %), our results highlight that riparian ET drives stream and groundwater hydrology in Mediterranean catchments and, further, question the potential of the riparian zone as a natural filter of nitrogen loads.
Michael J. Pennino, Sujay S. Kaushal, Paul M. Mayer, Ryan M. Utz, and Curtis A. Cooper
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The goal of this study was to compare how differences in urban stream restoration and sanitary infrastructure affect sources and fluxes of water and nutrients. Stream restoration reduced peak discharge and lowered nutrient export compared to unrestored streams, but was similar to a stream with upland stormwater management. The primary source of nitrate at all sites was leaky sanitary sewers, suggesting that combining stream restoration with sanitary pipe repairs may help reduce nutrient loads.
Pauline Humez, Bernhard Mayer, Michael Nightingale, Veith Becker, Andrew Kingston, Stephen Taylor, Guy Bayegnak, Romain Millot, and Wolfram Kloppmann
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Development of unconventional energy resources if often associated with public concerns regarding potential contamination of shallow groundwater due to methane leakage. We combined chemical and isotopic analyses of gas and water samples obtained from shallow aquifers in Alberta (Canada) to assess baseline methane sources and found that > 67 % of the samples contained biogenic methane formed in situ in the aquifers. There was no evidence of deep thermogenic methane migration into shallow aquifers.
M. C. Pierret, P. Stille, J. Prunier, D. Viville, and F. Chabaux
Hydrol. Earth Syst. Sci., 18, 3969–3985, https://doi.org/10.5194/hess-18-3969-2014, https://doi.org/10.5194/hess-18-3969-2014, 2014
K. S. Song, S. Y. Zang, Y. Zhao, L. Li, J. Du, N. N. Zhang, X. D. Wang, T. T. Shao, Y. Guan, and L. Liu
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C. T. Chang, S. P. Hamburg, J. L. Hwong, N. H. Lin, M. L. Hsueh, M. C. Chen, and T. C. Lin
Hydrol. Earth Syst. Sci., 17, 3815–3826, https://doi.org/10.5194/hess-17-3815-2013, https://doi.org/10.5194/hess-17-3815-2013, 2013
K. M. McEathron, M. J. Mitchell, and L. Zhang
Hydrol. Earth Syst. Sci., 17, 2557–2568, https://doi.org/10.5194/hess-17-2557-2013, https://doi.org/10.5194/hess-17-2557-2013, 2013
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