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Welcome to ECOSYS

UMR ECOSYS - Ecologie fonctionnelle et écotoxicologie des agroécosystèmes

Introduction to UMR ECOSYS

General scientific strategy


The study of agroecosystem functioning is the core of our activities,  through consideration of biogeochemical processes, material and energy flows, and the functions of organisms in isolation or interacting with their environment (Fig. 9). Agroecosystems respond to external forcing, which will induce technical actions by the farmer (nitrogen inputs, pesticides,  recycling of organic waste, tillage, choice of varieties/species) to mitigate or circumvent constraints to achieve the objectives of production. Some finalized outputs of our research contribute to the ecosystem services required from agroecosystems. Thus, the concept of services constitutes a conceptual framework for the organization and valuation of our final research, especially for the following services:

  • Production of food biomass and renewable carbon (via studying the functioning of plant populations under abiotic and biotic constraints) ("production" service).
  • Recovery of organic waste and recycling of the organic matter and nutrients in organic waste (via the management of waste products) ("recycling" service).
  • Maintenance of the biodiversity reservoir (via studying the dynamics and effects of living organisms in agrosystems) ("biodiversity" service).
  • Regulation of the global climate (via storage of carbon and nitrogen in the soil and greenhouse gas emissions studies) ("climate" service).
  • Regulation of the quality of biosphere compartments (via studying the dynamics and ecotoxicological effects of contaminants in agroecosystems) (“filtering” service).

To implement the approach of ecosystem service networks and study more specific environmental issues, ECOSYS mobilizes concepts of functional ecology through, for example, the analysis of flows between biosphere compartments, studying interactions between biological functions and environmental factors, and studying structural and functional plant plasticity. The challenge of ECOSYS was to appropriate concepts and theories from functional ecology to ultimately propose tools and models that can be used for forecasting or evaluation and for decision support.

Focus on...

Les séminaires internes d'Ecosys : Les sols aussi vieillissent

Les séminaires internes d'Ecosys : Les sols aussi vieillissent

Jeudi 27 Octobre salle J. Mamy (bâtiment Eger-Grignon)

le temps un facteur de pédogenèse pas tout à fait comme les autres

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"Attention ... ça chauffe ... rôle du sol dans l’atténuation des changements climatiques
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La macrofaune du sol

La macrofaune du sol

(presque) tout savoir sur la macrofaune des sols en 30 min : Qui sont ces animaux, qu'est-ce qu'ils font dans les sols.
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Offer M2 vineyards

Modeling the volatilization of pesticides applied in vineyards
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Proposition de Stage Cesure Perfuores

Quantification des risques d'apports de perfluorés en cas d'apports répétés de Produits Résiduaires Organiques
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Offre CDD Recotox

Chargé d’inventaire des données mobilisables pour la phytopharmacovigilance
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