[Des observatoires écologiques à long terme nécessaires pour comprendre les systèmes écohydrologiques de l'Anthropocène: une étude de cas à l'échelle du bassin versant en Bretagne, France]

Autor: Hugo Le Lay, Pauline Rousseau-Gueutin, Zahra Thomas, Jacques Baudry, Luc Aquilina, Hervé Squividant, Tamara Kolbe, Jean-Raynald de Dreuzy, Thierry Labasque, Benjamin W. Abbott, Christophe Petton, G. Pinay, Geneviève Le Hennaff, Pascal Pichelin, François Rouault, Jean Marçais
Přispěvatelé: Sol Agro et hydrosystème Spatialisation (SAS), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, École des Hautes Études en Santé Publique [EHESP] (EHESP), Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Centre National de la Recherche Scientifique (CNRS), Géosciences Rennes (GR), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Centre National de la Recherche Scientifique (CNRS), Observatoire des Sciences de l'Univers de Rennes (OSUR), Biodiversité agroécologie et aménagement du paysage (UMR BAGAP), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST-Ecole supérieure d'Agricultures d'Angers (ESA), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), ANR-08-STRA-01, Agence Nationale de la recherche, No. 607150, ITN –INTERFACES - FP7-PEOPLE-2013, AO 2015_DS_SIC, EC2CO, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 1 (UR1), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Ecole supérieure d'Agricultures d'Angers (ESA)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Regional Environmental Change
Regional Environmental Change, Springer Verlag, 2019, 19 (92), pp.363-377. ⟨10.1007/s10113-018-1444-1⟩
ISSN: 1436-378x
1436-3798
1436-378X
DOI: 10.1007/s10113-018-1444-1⟩
Popis: ISI Document Delivery No.: HK8WZ Times Cited: 1 Cited Reference Count: 76 Thomas, Zahra Rousseau-Gueutin, Pauline Abbott, Benjamin W. Kolbe, Tamara Le Lay, Hugo Marcais, Jean Rouault, Francois Petton, Christophe Pichelin, Pascal Le Hennaff, Genevieve Squividant, Herve Labasque, Thierry de Dreuzy, Jean-Raynald Aquilina, Luc Baudry, Jacques Pinay, Gilles French National Research Agency (ANR) [ANR-08-STRA-01]; European Union Inter-national Training Network "Ecohydrological interfaces as critical hotspots for transformations of ecosystem exchange fluxes and biogeochemical cycling" [607150]; French EC2CO grant "Caracterisation hydrologique et biogeochimique de la denitrification dans les paysages"; LTSER "Zone Atelier Armorique" This research was supported in part by the French National Research Agency (ANR; Project ANR-08-STRA-01) and the European Union Inter-national Training Network "Ecohydrological interfaces as critical hotspots for transformations of ecosystem exchange fluxes and biogeochemical cycling" (ITN-INTERFACES - FP7-PEOPLE-2013-No. 607150). This research was also supported by the French EC2CO grant "Caracterisation hydrologique et biogeochimique de la denitrification dans les paysages." The study was supported by the LTSER "Zone Atelier Armorique." We thank all the farmers of the ZAAr who kindly accepted the installation of the experiments in their fields. We also thank all the staff of the ILSTER Zone Atelier Armorique, especially the technicians of OSUR-INRA-AGROCAMPUS who helped in sampling and laboratory analysis. 1 0 Springer heidelberg Heidelberg 1436-378x Si; International audience; Over the last half century, humans have become the dominant force driving many of Earth’s cycles. Intensive agriculture has simultaneously increased nutrient loading of pastoral landscapes and decreased the capacity of these ecosystems to retain or remove excess nutrients. Widespread degradation of terrestrial and aquatic ecosystems has triggered the establishment of ecological observatories, including the Zone Atelier Armorique (ZAAr) in western France, a part of the International Long-Term Socio-Ecological Research (LTSER) network. The ZAAr includes a patchwork of land covers and uses, including old-growth forests, intensively cultivated row crops, and ancient bocage fields surrounded by hedgerows. In addition to traditional ecological research at ZAAr, the last 8 years have seen the development of multiproxy and multiscale approaches to address surface and groundwater quality. Here, we present a comprehensive analysis of this 8-year dataset, including vegetation, soil water storage, and stream and groundwater chemistry. We observed contrasting responses of different catchment components to climate forcing and direct disturbance. Our results highlight a clear relationship between land use and surface water quality, while groundwater quality appeared largely unrelated to land use, suggesting strong differences in aquifer nitrogen removal rates. There were large differences in nutrient fluxes among dry and wet years, with multiyear memory effects apparent for some parameters. Given such complex interactions, including emergent dynamics and decadal to centennial time lags, we conclude that multidimensional observations such as those supported by the ZAAr and other LTSER sites, are critical to understanding ecohydrological systems in the Anthropocene.
Databáze: OpenAIRE
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