Using multi-tracer inference to move beyond single-catchment ecohydrology

Abbott, B.W. ; Baranov, V. ; Mendoza Lera, C. ; Nikolakopoulou, M. ; Harjung, A. ; Kolbe, T. ; Balasubramanian, M. ; Vaessen, T.N. ; Ciocca, F. ; Campeau, A. ; Wallin, M. ; Romeijn, P. ; Antonelli, M. ; Gonçalves, J. ; Datry, T. ; Laverman, A.M. ; De Dreuzy, J.R. ; Hannah, D.M. ; Krause, S. ; Oldham, C. ; Pinay, G.

Type de document
Article de revue scientifique à comité de lecture
Langue
Anglais
Affiliation de l'auteur
UNIVERSITE DE RENNES I OSUR CNRS UMR 6553 ECOBIO RENNES FRA ; LEIBNIZ INSTITUTE OF FRESHWATER ECOLOGY AND INLAND FISHERIES BERLIN DEU ; IRSTEA LYON UR MALY FRA ; NATURALEA ESP ; UNIVERSITY OF BARCELONA ESP ; OSUR GEOSCIENCES RENNES CNRS UMR 6118 UNIVERSITE DE RENNES I FRA ; BIOSISTEMIKA LTD LJUBLJANA SLO ; CSIC CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS ESP ; SILIXA GBR ; UPPSALA UNIVERSITY SWE ; UPPSALA UNIVERSITY SWE ; UNIVERSITY OF BIRMINGHAM GBR ; CENTRE DE RECHERCHE PUBLIC GABRIEL LIPPMANN LUXEMBOURG LUX ; NATIONAL INSTITUTE OF BIOLOGY SVN ; IRSTEA LYON UR MALY FRA ; UNIVERSITE DE RENNES I OSUR CNRS UMR 6553 ECOBIO RENNES FRA ; OSUR GEOSCIENCES RENNES CNRS UMR 6118 UNIVERSITE DE RENNES I FRA ; UNIVERSITY OF BIRMINGHAM GBR ; UNIVERSITY OF BIRMINGHAM GBR ; UNIVERSITY OF WESTERN AUSTRALIA PERTH AUS ; UNIVERSITE DE RENNES I OSUR CNRS UMR 6553 ECOBIO RENNES FRA
Année
2016
Résumé / Abstract
Protecting or restoring aquatic ecosystems in the face of growing anthropogenic pressures requires an understanding of hydrological and biogeochemical functioning across multiple spatial and temporal scales. Recent technological and methodological advances have vastly increased the number and diversity of hydrological, biogeochemical, and ecological tracers available, providing potentially powerful tools to improve understanding of fundamental problems in ecohydrology, notably: 1. Identifying spatially explicit flowpaths, 2. Quantifying water residence time, and 3. Quantifying and localizing biogeochemical transformation. In this review, we synthesize the history of hydrological and biogeochemical theory, summarize modern tracer methods, and discuss how improved understanding of flowpath, residence time, and biogeochemical transformation can help ecohydrology move beyond description of site-specific heterogeneity. We focus on using multiple tracers with contrasting characteristics (crossing proxies) to infer ecosystem functioning across multiple scales. Specifically, we present how crossed proxies could test recent ecohydrological theory, combining the concepts of hotspots and hot moments with the Damköhler number in what we call the HotDam framework.
Source
Earth Science Reviews, vol. 160, p. 19 - 42

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