Benettin, P., Volkmann, T. H. M., von Freyberg, J., Frentress, J., Penna, D., Dawson, T. E., and Kirchner, J. W.: Effects of climatic seasonality on the isotopic composition of evaporating soil waters, Hydrol. Earth Syst. Sci., 22, 2881–2890, https://doi.org/10.5194/hess-22-2881-2018, 2018.
Berry, Z.C., Evaristo, J., Moore, G., Poca, M., Steppe, K., Verrot, L.,
Asbjornsen, H., Borma, L.S., Bretfeld, M., Hervé-Fernández, P.,
Seyfried, M., Schwendenmann, L., Sinacore, K., De Wisperlaere, L., and
McDonnell, J.: The two water worlds hypothesis: Addressing multiple working
hypotheses and proposing a way forward, Ecohydrology, 11, e1843, https://doi.org/10.1002/eco.1843, 2017.
Bertrand, G., Masini, J., Goldscheider, N., Meeks, J., Lavastre, V.,
Celle-Jeanton, H., Gobat, J. M., and Hunkeler, D.: Determination of
spatiotemporal variability of tree water uptake using stable isotopes
(
δ18O,
δ2H) in an alluvial system supplied by a
high-altitude watershed, Pfyn forest, Switzerland, Ecohydrology, 7, 319–333,
2014.
Beyer, M., Koeniger, O., Gaj, M., Hamutoko, J. T., Wanke, H., and
Himmelsbach, T.: A deuterium-based labeling technique for the investigation
of rooting depths, water uptake dynamics and unsaturated zone water
transport in semiarid environments, J. Hydrol., 533, 627–643, 2016.
Bowling, D. R., Schulze, E. S., and Hall, S. J.: Revisiting streamside trees
that do not use stream water: Can the two water worlds hypothesis and
snowpack isotopic effects explain a missing water source?, Ecohydrology, 10, e1771, https://doi.org/10.1002/eco.1771, 2017.
Brinkmann, N., Eugster, W., Buchmann, N., and Kahmen, A.: Species-specific
differences in water uptake depth of mature temperate trees vary with water
availability in the soil, Plant Biol., 21, 71–81, 2019.
Brooks, J. R., Barnard, H. R., Coulombe, R., and McDonnell, J. J.:
Ecohydrological separation of water between trees and streams in a
Mediterranean climate, Nat. Geosci., 3, 100–104, 2010.
Buttle, J.: Snelgrove et al HESS 2020 submission, Scholars Portal Dataverse, https://doi.org/10.5683/SP2/TGCHV6, 2020.
Buttle, J. M. and House, D. A.: Spatial variability of saturated hydraulic
conductivity in shallow macroporous soils in a forested basin, J. Hydrol.,
203, 127–142, 1997.
Carey, S. K., Tetzlaff, D., Seibert, J., Soulsby, C., Buttle, J., Laudon, H.,
McDonnell, J., McGuire, K., Caissie, D., Shanley, J., Kennedy, M., Devito,
K., and Pomeroy, J. W.: Inter-comparison of hydro-climatic regimes across
northern catchments: synchronicity, resistance and resilience, Hydrol. Process., 24, 3591–3602, 2010.
Carey, S. K., Tetzlaff, D., Buttle, J., Laudon, H., McDonnell, J., McGuire,
K., Seibert, J., Soulsby, C., and Shanley, J.: Use of color maps and wavelet
coherence to discern seasonal and inter annual climate influences on
streamflow variability in northern catchments, Water Resour. Res., 49,
6194–6207, 2013.
Cernusak, L. A., Farquhar, G. D., and Pate, J. S.: Environmental and
physiological controls over oxygen and carbon isotope composition of Tasmanian blue gum,
Eucalyptus globulus, Tree Physiol., 25, 129–146, 2005.
Coplen, T. B., Hopple, J. A., Bohlke, J. K., Peiser, H. S., Rieder, S. E.,
Krouse, H. R., Rosman, K. J. R., Ding, T., Voche, R. D., Revesz, K., Lamberty, A., Taylor, P., and De Bievre, P.: Compilation of minimum and maximum isotope ratios of selected elements in naturally occurring terrestrial materials and reagents, Water-Resources Investigations Report 01-4222, US Geological Survey, Reston, Virginia, 98 pp., 2002.
Devito, K. J. and Dillon, P.: The influence of hydrologic conditions and peat oxia on the phosphorus and nitrogen dynamics of a conifer swamp, Water Resour. Res., 29, 2675–2685, 1993.
Dubbert, M. and Werner, C.: Water fluxes mediated by vegetation: emerging
isotopic insights at the soil and atmosphere interfaces, New Phytol., 221,
1754–1763, 2019.
Evaristo, J., Kim, K., van Haren, J., Pangle, L. A., Harman, C. J., Troch,
P. A., and McDonnell, J. J.: Characterizing the fluxes and age distribution of soil water, plant water, and deep percolation in a model tropical ecosystem, Water Resour. Res., 55, 3307–3327, https://doi.org/10.1029/2018WR023265, 2019.
Gaines, K. P., Stanley, J. W., Meinzer, F. C., McCulloh, K. A., Woodruff, D. R., Chen, W., Adams, T. S., Lin, H., and Eissenstat, D. M.: Reliance on shallow soil water in a mixed-hardwood forest in central Pennsylvania, Tree
Physiol., 36, 444–458, 2016.
Geris, J., Tetzlaff, D., McDonnell, J., Anderson, J., Paton, G., and Soulsby, C.: Ecohydrological separation in wet, low energy northern environments? A preliminary assessment using different soil water extraction techniques, Hydrol. Process., 29, 5139–5152, 2015.
Goldsmith, G. R., Muñoz-Villers, L. E., Holwerda, F., McDonnell, J. J.,
Asbjornsen, H., and Dawson, T. E.: Stable isotopes reveal linkages among
ecohydrological processes in a seasonally dry tropical montane cloud forest,
Ecohydrology, 5, 779–790, 2012.
Grüning, M., Lutz, H. O., Roller-Lutz, Z., Gourcy, L., and
Pöltenstein, L.: A simple rain collector preventing water re-evaporation for
δ18O and
δ2H analysis of cumulative precipitation samples, J. Hydrol., 448–449, 195–200, 2012.
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 source
used by trees, New Phytol., 213, 584–596, 2017.
Hartmann, D. L, Klein Tank, A. M. G, Rusticucci, M, Alexander, L. V,
Brönnimann, S, Charabi, Y., Dentener, F. J., Dlugokencky, E. J., Easterling, D. R., Kaplan, A., Soden, B. J., Thorne, P. W., Wild, M., and Zhai, P. M.: Observations: atmosphere and surface, in: Climate Change 2013: The Physical Science Basis: Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Stocker, T. F., Qin, D., Plattner, G.-K., Tignor, M., Allen, S. K., Boschung, J., Nauels, A., Xia, Y., Bex, V., and Midgley, P. M., Cambridge University Press, Cambridge, UK and New York, USA, 159–254, 2013.
Hendry, M. J., Schmeling, E., Wassenaar, L. I., Barbour, S. L., and Pratt, D.: Determining the stable isotope composition of pore water from saturated and unsaturated zone core: improvements to the direct vapour equilibration laser spectrometry method, Hydrol. Earth Syst. Sci., 19, 4427–4440, https://doi.org/10.5194/hess-19-4427-2015, 2015.
Hervé-Fernández, P., Oyarzún, C., Brumbt, C., Huygens, D.,
Bodé, S., Verhoest, N. E. C., and Boeckx, P.: Assessing the `two water
worlds' hypothesis and water sources for native and exotic evergreen species
in south-central Chile, Hydrol. Process., 30, 4227–4241, 2016.
Klaus, J., McDonnell, J. J., Jackson, C. R., Du, E., and Griffiths, N. A.: Where does streamwater come from in low-relief forested watersheds? A dual-isotope approach, Hydrol. Earth Syst. Sci., 19, 125–135, https://doi.org/10.5194/hess-19-125-2015, 2015.
Knighton, J., Souter-Kline, V., Volkma, T., Troch, P. A., Kim, M., Harman, C., Morris, C., Buchanan, B., and Walter, M. T.: Seasonal and topographic
variations in ecohydrological separation within a small, temperate,
snow-influenced catchment, Water Resour. Res., 55, 6417–6435, 2019.
Koeniger, P., Marshall, J. D., Link, T., and Mulch, A.: An inexpensive, fast,
and reliable method for vacuum extraction of soil and plant water for stable
isotope analyses by mass spectrometry, Rapid Commun. Mass Spectrom., 25,
3041–3048, 2011.
Landwehr, J. M. and Coplen, T. B.: Line-conditioned excess: a new method for
characterizing stable hydrogen and oxygen isotope ratios in hydrologic
systems, in: International Conference on Isotopes in Environmental Studies,
Aquatic Forum 2004, IAEA–CSP–26, International Atomic Energy Agency, Vienna, 132–135, 2006.
Lane, D., McCarter, C. P. R., Richardson, M., McConnell, C., Field, T., Yao,
H., Arhonditsis, G., and Mitchell, C. P. J.: Wetlands and low-gradient
topography are associated with longer hydrologic transit times in Precambrian Shield headwater catchments, Hydrol. Process., 34, 598–614, 2020.
Laudon, H., Spence, C., Buttle, J., Carey, S. K., McDonnell, J., McNamara,
J. P., Soulsby, C., and Tetzlaff, D.: Preserve northern latitude catchment
studies, Nat. Geosci., 10, 324–325, 2017.
Lin, G. and Sternberg, L. S. L.: Hydrogen isotopic fractionation by plant
roots during water uptake in coastal wetland plants, in: Stable Isotopes and
Plant Carbon-Water Relations, edited by: Ehleringer, J. R., Hall, A. E., and
Farquhar, G. D., Academic Press Inc., New York, USA, 497–510, 1993.
Lin, Y. and Horita, J.: An experimental study on isotope fractionation in a
mesoporous silica-water system with implications fo
r vadose-zone hydrology,
Geochim. Cosmochim. Ac., 184, 257–271, https://doi.org/10.1016/j.gca.2016.04.029, 2016.
Liu, Y., Fang, Y., Hu, H., Tian, F., Dong, Z., and Khan, M. Y. A.: Ecohydrological separation hypothesis: review and prospect, Water, 12,
2077, https://doi.org/10.3390/w12082077, 2020.
McCutcheon, R. J., McNamara, J. P., Kohn, M. J., and Evans, S. L.: An evaluation of the ecohydrological separation hypothesis in a semiarid catchment, Hydrol. Process., 31, 783–799, 2017.
McDermid, J., Fera, S., and Hogg, A.: Climate change projections for Ontario: An updated synthesis for policymakers and planners, Climate Change Research Report CCRR-44, Ontario Ministry of Natural Resources and Forestry, Science and Research Branch, Peterborough, Ontario, 39 pp., 2015.
McDonnell, J. J.: The two water worlds hypothesis: ecohydrological separation
of water between streams and trees?, Wiley Interdisciplin. Rev.: Water, 1, 323–329, 2014.
Millar, C., Pratt, D., Schneider, D. J., and McDonnell, J. J.: A comparison of extraction systems for plant water stable isotope analysis, Rapid Commun. Mass Spectrom., 32, 1031–1044, 2018.
Oerter, E., Finstad, K., Schaefer, J., Goldsmith, G. R., Dawson, T., and
Amundson, R.: Oxygen isotope fractionation effects in soil water via
interaction with cations (Mg, Ca, K, Na) adsorbed to phyllosilicate clay
minerals, J. Hydrol., 515, 1–9, 2014.
Orlowski, N., Breuer, L., Angeli, N., Boeckx, P., Brumbt, C., Cook, C. S., Dubbert, M., Dyckmans, J., Gallagher, B., Gralher, B., Herbstritt, B., Hervé-Fernández, P., Hissler, C., Koeniger, P., Legout, A., Macdonald, C. J., Oyarzún, C., Redelstein, R., Seidler, C., Siegwolf, R., Stumpp, C., Thomsen, S., Weiler, M., Werner, C., and McDonnell, J. J.: Inter-laboratory comparison of cryogenic water extraction systems for stable isotope analysis of soil water, Hydrol. Earth Syst. Sci., 22, 3619–3637, https://doi.org/10.5194/hess-22-3619-2018, 2018.
Oshun, J., Dietrich, W. E., Dawson, T. E., and Fung, I.: Dynamic, structured
heterogeneity of water isotopes inside hillslopes, Water Resour. Res., 52,
164–189, 2016.
Penna, D., Hopp, L., Scandellari, F., Allen, S. T., Benettin, P., Beyer, M., Geris, J., Klaus, J., Marshall, J. D., Schwendenmann, L., Volkmann, T. H. M., von Freyberg, J., Amin, A., Ceperley, N., Engel, M., Frentress, J., Giambastiani, Y., McDonnell, J. J., Zuecco, G., Llorens, P., Siegwolf, R. T. W., Dawson, T. E., and Kirchner, J. W.: Ideas and perspectives: Tracing terrestrial ecosystem water fluxes using hydrogen and oxygen stable isotopes –challenges and opportunities from an interdisciplinary perspective, Biogeosciences, 15, 6399–6415, https://doi.org/10.5194/bg-15-6399-2018, 2018.
Phillips, S. L. and Ehleringer, J. R.: Limited uptake of summer precipitation
by bigtooth maple (
Acer grandidentatum Nutt) and Gambel's oak (
Quereus gambelii Nutt), Trees, 9, 214–219, 1995.
R Core Team: R: A Language and Environment for Statistical Computing
[Internet], R Foundation for Statistical Computing, Vienna, Austria, available at:
https://www.R-project.org (last access: June 2020), 2019.
Smith, T. J., McNamara, J. P., Flores, A. N., Gribb, M. M., Aishlin, P. S., and Benner, S. G.: Limited soil storage capacity constrains upland benefits of winter snowpack, Hydrol. Process., 25, 3858–3865, 2011.
Sprenger, M. and Allen, S. T.: What ecohydrologic separation is and where
can we go with it, Water Resour. Res., 56, e2020WR027238, https://doi.org/10.1029/2020WR027238, 2020.
Sprenger, M., Tetzlaff, D., Buttle, J., Carey, S., McNamara, J., Laudon, H.,
Shatilla, N., and Soulsby, C.: Storage, mixing and fluxes of water in the
critical zone across northern environments inferred by stable isotopes of
soil water, Hydrol. Process., 32, 1732–1737, 2018a.
Sprenger, M., Tetzlaff, D., Buttle, J., Laudon, H., Leistert, H., Mitchell,
C. P. J., Snelgrove, J., Weiler, M., and Soulsby, C.: Measuring and modeling
stable isotopes of mobile and bulk soil water, Vadose Zone J., 17, 170149, https://doi.org/10.2136/vzj2017.08.0149, 2018b.
Sprenger, M., Tetzlaff, D., Buttle, J., Laudon, H., and Soulsby, C.: Water ages in the critical zone of long-term experimental sites in northern latitudes, Hydrol. Earth Syst. Sci., 22, 3965–3981, https://doi.org/10.5194/hess-22-3965-2018, 2018c.
Tetzlaff, D., Buttle, J. M., Carey, S. K., McGuire, K., Laudon, H., and
Soulsby, C.: Tracer-based assessment of flow paths, storage and runoff
generation in northern catchments: a review, Hydrol. Process., 29, 3475–3490, 2015.
Tetzlaff, D., Buttle, J. M., Carey, S. K., Kohn, M., Laudon, H., McNamara,
J. P., Smith, A., Sprenger, M., and Soulsby, C.: Stable isotopes of water
reveal differences in plant – soil water relationships across northern
environments, Hydrol. Process., 35, e14023, https://doi.org/10.1002/hyp.14023, 2021.
Vargas, A. I., Schaffer, B., Yuhong, L., and Sternberg, L. S. L.: Testing plant use of mobile vs immobile soil water sources using stable isotope
experiments, New Phytol., 215, 582–594, 2017.
Watmough, S. A., Aherne, J., Eimers, M. C., and Dillon, P. J.: Acidification at Plastic Lake, Ontario: Has 20 years made a difference?, Water Air Soil
Poll.: Focus, 7, 301–306, 2007.
White, J. C. and Smith, W. K.: Seasonal variation in water sources of the
riparian tree species
Acer negundo and
Betula nigra, southern Appalachian foothills, USA, Botany, 93, 519–528, 2015.
Zhao, P., Tang, X., Zhao, P., Wang, C., and Tang, J.: Identifying the water
source for subsurface flow with deuterium and oxygen-18 isotopes of soil
water collected from tension lysimeters and cores, J. Hydrol., 503, 1–10,
2013.
