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AGRHYS: an observatory of the critical zone in the context of high anthropogenic pressures (intensive livestock farming); research issues

Philippe Mérot 1 Chantal Gascuel-Odoux 1 Laurent Ruiz 1 Gérard Gruau 2 Luc Aquilina 2 Michael Faucheux 1
1 SAS - Sol Agro et hydrosystème Spatialisation
2 GR - Géosciences Rennes
Abstract : The Observatory for Research on Environment AgrHyS(AgroHydroSystems) is located in a catchment area of intensive farming in Britain. This is a twin site (Kerbernez and Naizin) monitoring since 1976, and where various measures were greatly strengthened since 2000, and have special characteristics: classical variables (rainfall, flow rates), major elements in daily frequency; CFC to measure response time; level of groundwater and dissolved elements in 70 piezometers, nutrients etc.. - The issue of response time in these systems constrained by strong anthropogenic pressures and non-equilibrium status is central. - The role of biogeochemical hot spot as are the wetlands concerning the dynamics of DOC (source), NO3 (sink) or phosphorus (source / sink) is a privileged object of study. - The massive amount of input modifies the conditions of storage, processing and chemical erosion. - The characterization of the inputs is a problem specific to these systems - Recently the inclusion of the atmospheric phase of C and N cycles has completed the issue at stake
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https://hal-insu.archives-ouvertes.fr/insu-00668601
Contributor : Isabelle Dubigeon <>
Submitted on : Friday, February 10, 2012 - 9:24:22 AM
Last modification on : Monday, July 6, 2020 - 3:38:32 PM

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  • HAL Id : insu-00668601, version 1

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Philippe Mérot, Chantal Gascuel-Odoux, Laurent Ruiz, Gérard Gruau, Luc Aquilina, et al.. AGRHYS: an observatory of the critical zone in the context of high anthropogenic pressures (intensive livestock farming); research issues. European Geosciences Union General Assembly 2011, Apr 2011, Vienne, Austria. pp.EGU2011-6967. ⟨insu-00668601⟩

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