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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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LabEx BASC

Flagship project 1- Biosphere-atmosphere interactions

Flagship project 1: To what extend can a better understanding of biosphere-atmosphere interactions improve land use management?

Interactions between atmosphere, climate, the functioning of soils and ecosystems and societal choices remain poorly identified at local to regional scales, while these scales are key for solving societal questions. Flagship project 1 focuses on the understanding and modeling of dynamic interactions between (i) regional scale climate change, atmosphere thermodynamics and composition, (ii) the evolution of terrestrial ecosystems and (iii) socio-economic changes. Our objective is to develop a set of approaches and models to analyze the interactions (with an emphasis on feedbacks) between the atmosphere, soils, ecosystems and social systems. We will consider both means and extremes, at temporal scales ranging from days to many decades. A significant added value, compared to most research programs or institutions on these issues, is to account for the complex feedback loops that operate at the considered scales, thanks to BASC interdisciplinary skills and tools.

The core of this project will be to set-up (i) an integrated framework - based on existing tools, concepts and developments among BASC laboratories - and (ii) relevant scenarios and their testing. The following issues will be addressed:

  • the role of local/regional drivers (land cover and its diversity, land management and uses) on i) ecosystem fluxes and budgets (from local to regional scales) of matter and energy to the atmosphere, ii) ecosystem functioning and therefore services;
  • do local/regional changes have an influence on climate change at global and regional scales? How could it be assessed? Can we mitigate local/regional “climate” and air quality by modifying agricultural techniques and farming systems?
  • the development of ecological, social and economic indicators that drive changes in land cover, land management and biodiversity;
  • the construction/consolidation of rules, laws and zoning procedures in local public decision related to climate change and air pollution.

Three positions were filled to advance this work:

> Post doctoral researcher «Land use planning and climate » - Mathieu Perrin – 24 months

> Post doctoral researcher « Regional impacts of various scenarios of land planning on climate and air quality: identification and quantification of both the temporal and spatial resolution of those impacts » - Susanna Strada – 24 months

> Engineer « Évolution des liens entre agriculture et climat au cours des 20e et 21e siècles sur le plateau de Saclay et en Île de France » - Anne-Charlotte Vivant – 18 months

> PhD student « Reforesting semi-arid tropics ? : Objectives, constraints and climatic opportunities in the context of global change »- Amélie Rajaud – 36 months

Coordinators: Nathalie DE NOBLET (LSCE) & Pierre CELLIER (ECOSYS)