globalchange  > 气候变化与战略
DOI: 10.1016/j.earscirev.2021.103724
论文题名:
Towards an improved understanding of biogeochemical processes across surface-groundwater interactions in intermittent rivers and ephemeral streams
作者: Gómez-Gener L.; Siebers A.R.; Arce M.I.; Arnon S.; Bernal S.; Bolpagni R.; Datry T.; Gionchetta G.; Grossart H.-P.; Mendoza-Lera C.; Pohl V.; Risse-Buhl U.; Shumilova O.; Tzoraki O.; von Schiller D.; Weigand A.; Weigelhofer G.; Zak D.; Zoppini A.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2021
卷: 220
语种: 英语
中文关键词: Carbon ; Ecosystem ecology ; Intermittency ; Nitrogen ; Non-perennial ; Phosphorus ; Stream network ; Watercourses
英文摘要: Surface-groundwater interactions in intermittent rivers and ephemeral streams (IRES), waterways which do not flow year-round, are spatially and temporally dynamic because of alternations between flowing, non-flowing and dry hydrological states. Interactions between surface and groundwater often create mixing zones with distinct redox gradients, potentially driving high rates of carbon and nutrient cycling. Yet a complete understanding of how underlying biogeochemical processes across surface-groundwater flowpaths in IRES differ among various hydrological states remains elusive. Here, we present a conceptual framework relating spatial and temporal hydrological variability in surface water-groundwater interactions to biogeochemical processing hotspots in IRES. We combine a review of theIRES biogeochemistry literature with concepts of IRES hydrogeomorphology to: (i) outline common distinctions among hydrological states in IRES; (ii) use these distinctions, together with considerations of carbon, nitrogen, and phosphorus cycles within IRES, to predict the relative potential for biogeochemical processing across different reach-scale processing zones (flowing water, fragmented pools, hyporheic zones, groundwater, and emerged sediments); and (iii) explore the potential spatial and temporal variability of carbon and nutrient biogeochemical processing across entire IRES networks. Our approach estimates the greatest reach-scale potential for biogeochemical processing when IRES reaches are fragmented into isolated surface water pools, and highlights the potential of relatively understudied processing zones, such as emerged sediments. Furthermore, biogeochemical processing in fluvial networks dominated by IRES is likely more temporally than spatially variable. We conclude that biogeochemical research in IRES would benefit from focusing on interactions between different nutrient cycles, surface-groundwater interactions in non-flowing states, and consideration of fluvial network architecture. Our conceptual framework outlines opportunities to advance studies and expand understanding of biogeochemistry in IRES. © 2021 The Authors
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166407
Appears in Collections:气候变化与战略

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作者单位: Stream Biofilm and Ecosystem Research Laboratory, School of Architecture, Civil and Environmental Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland; Department of Aquatic Ecology, Eawag, Swiss Federal Institute of Aquatic Sciences, Dübendorf, Switzerland; Centre for Freshwater Ecosystems, La Trobe University, Wodonga, VIC, Australia; Department of Ecology and Hydrology, International Excellence Campus for Higher Education and Research of the University of Murcia, Murcia, Spain; Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel; Integrative Freshwater Ecology Group (IFE), Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Blanes, Girona, Spain; Department of Chemistry, Life Sciences and Environmental Sustainability, Parma University, Parma, Italy; INRAE, UR-RiverLy, Centre de Lyon-Villeurbanne, Villeurbanne Cedex, France; Catalan Institute for Water Research (ICRA), Scientific and Technological Park of the University of Girona, Girona, Spain; Department of Surface Waters – Research and Management, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland; Department of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Stechlin, Germany; Institute for Biochemistry and Biology, Potsdam University, Potsdam, Germany; Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany; Stroud Water Research Center, Avondale, PA, United States; Environmental Sustainability and Health Institute, Technological University Dublin, Grangegorman Lower, Dublin, Ireland; Helmholtz Centre for Environmental Research GmbH – UFZ, Magdeburg, Germany; Department of Ecohydrology, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 310, Berlin, 12587, Germany; Marine Sciences Department, University of the Aegean, Mytilene, Greece; Department of Evolutionary Biology, Ecology and Environmental Sciences, Water Research Institute (IdRA), University of Barcelona, Barcelona, Spain; Department of Zoology, National Museum of Natural History Luxembourg, Luxembourg, Luxembourg; Institute of Hydrobiology and Aquatic Ecosystem management, University of Natural Resources and Life Sciences Vienna, Austria; Department of Chemical Analytics, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany; Department of Bioscience, Aarhus University, Silkeborg, Denmark; Water Research Institute, National Research Council (IRSA-CNR), Rome, Italy

Recommended Citation:
Gómez-Gener L.,Siebers A.R.,Arce M.I.,et al. Towards an improved understanding of biogeochemical processes across surface-groundwater interactions in intermittent rivers and ephemeral streams[J]. Earth Science Reviews,2021-01-01,220
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