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Towards an improved understanding of biogeochemical processes across surface-groundwater interactions in intermittent rivers and ephemeral streams

journal contribution
posted on 09.08.2021, 04:59 by Lluís Gómez-Gener, Andre SiebersAndre Siebers, María Isabel Arce, Shai Arnon, Susana Bernal, Rossano Bolpagni, Thibault Datry, Giulia Gionchetta, Hans-Peter Grossart, Clara Mendoza-Lera, Vivien Pohl, Ute Risse-Buhl, Oleksandra Shumilova, Ourania Tzoraki, Daniel von Schiller, Alexander Weigand, Gabriele Weigelhofer, Dominik Zak, Annamaria Zoppini
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.

History

Publication Date

01/09/2021

Journal

Earth-Science Reviews

Volume

220

Article Number

103724

Pagination

(p. 1-17)

Publisher

Elsevier BV

ISSN

0012-8252

Rights Statement

The Author reserves all moral rights over the deposited text and must be credited if any re-use occurs. Documents deposited in OPAL are the Open Access versions of outputs published elsewhere. Changes resulting from the publishing process may therefore not be reflected in this document. The final published version may be obtained via the publisher’s DOI. Please note that additional copyright and access restrictions may apply to the published version.

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