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INRA
24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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Welcome to ECOSYS

UMR ECOSYS - Ecologie fonctionnelle et écotoxicologie des agroécosystèmes

Introduction to UMR ECOSYS

General scientific strategy

Edito

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...

Journée Living Lab

Journée Living Lab

Vers un Living Lab créateur de valeur pour les territoires agri-urbains
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Les cycles biogéochimiques

Les cycles biogéochimiques

Crévindiou … qu’est-ce que ma vache et mon champ y peuv’ bien avoir à faire avec leurs cycles bigiochégéomichiques ou … pourquoi...
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Très cher ozone

tout savoir (ou presque) sur notre… Très cher ozone

27 février 11h30 Salle Jean Mamy Grignon

«l'évaluation des impacts écologiques et économiques d'un polluant atmosphérique »  

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 la statistique bayésienne

la statistique bayésienne

Lundi 9 janvier 2017 11h30-12h15 Salle J. Mamy

combiner des données imprécises avec des connaissances d'experts incertains

https://www6.versailles-grignon.inra.fr/ecosys/Media/Page-d-accueil/Zoom-sur/La-statistique-Bayesienne

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Les séminaires internes d'Ecosys :Les richesses de nos poubelles et autres déchets

Les séminaires internes d'Ecosys :Les richesses de nos poubelles et autres déchets

Les richesses de nos poubelles et autres déchets
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Portes ouvertes EcoSys

Portes ouvertes EcoSys

Mardi 6 décembre à 14h Bâtiment Bioclimato à Grignon

Agriculture et cycles biogéochimiques

https://www.youtube.com/embed/hIsXAtB602I

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Les services écosystémiques

Les services écosystémiques

... éco ...quoi ?! ... quels services, pour qui ...?
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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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4pour1000

4pour1000

"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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