Area 4: Global agronomy (GA)

Analyzing on a large scale the impact of climate change and agroecological transition on the balance between production and biodiversity

Agriculture is facing climate change and declining biodiversity. Although different in their nature, these two phenomena are occurring globally at an alarming rate (IPBES, 2019; IPCC, 2023). These spatial and temporal characteristics raise specific questions for agriculture, which the work carried out in this area will help to answer. 

We work mainly on large spatial scales (i.e., country, continent, world), while also considering finer scales (e.g., agricultural plot) when necessary. The methods we use are mainly from the field of global agronomy, and allow us to consider the global dimension in several ways: (i) extending the scope of validity of the knowledge produced by analyzing experiments spread across the globe (e.g., meta-analysis), (ii) increasing the spatial scope of analyses to national, regional, and global scales (e.g., machine learning), (iii) analyzing levels of organization higher than those usually considered in agronomy (e.g., modeling the global food system). 

In addition, we wish to initiate work to connect issues related to biodiversity and climate change in agriculture, as these topics are most often treated separately despite the strong links between them.

Three scientific challenges arise: 

(1) What are the impacts of climate change on crops?
(2) Do agroecology levers enable adaptation to future climate conditions?
(3) Do agroecology levers enable improvement of the biodiversity-production trade-off at different spatial scales?

Participants
Permanent staff :
Rémy BALLOT, Corentin BARBU, Nicolas GUILPART, Lucile MUNERET, Marie-Hélène JEUFFROY
Contract and doctoral staff:
Marie MARTEAU-BAZOUNI, Pablo YEPES LLANO, Clément CHEVALEYRE, Alexandre DOSSET