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ORE agro-hydrosystèmes

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Responses time in Agro-Hydro-Systems

The Environmental Research Observatory (ERO) AgrHyS focuses on the response times of changing Agro-Hydro-Systems for hydro-chemical fluxes.

An Agro-Hydro System is defined as a catchment influenced by agricultural activity.

This type of catchment is constrained globally by two kinds of forcage:

  • The farming activity which induces:
    • Changes in spatial structures (plot’s size and shape, buffer zones, wetland transformation, spatial organization of crops and farming)
    • Modifications in input flux either water fluxes (irrigation), or organic and mineral fluxes (fertilization, pesticides…)
  • The climate as for any ecosystem, with:
    • A short term huge variability
    • Long term trends related to global changes