UMR Agronomy - Versailles-Saclay center


21 December 2023

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Grain legume response to future climate and adaptation strategies in Europe, a review of simulation studies

In Europe, increasing the area of legume crops has been identified as a key measure to achieve the objectives set by the European Green Deal and transition toward more sustainable food systems. Although the role of grain legumes in climate change mitigation has been closely examined, little research has focused on how climate change will challenge the development of these crops. This article systematically reviews recent simulation studies to assess the impact of climate change on grain legume performances in Europe and the effect of adaptation strategies.
The EU imports large quantities of soybeans, mainly for livestock feed. However, there is a trend to increase domestic soybean production and reduce imports. In this study, we investigate the potential impact of an increased EU soybean cultivation on evapotranspiration (ET), water deficit, and irrigation needs.
The aim of this study was to assess the medium-term performances of a pesticide-free (but allowing the use of synthetic fertilizers) cropping system, designed to achieve high yields while meeting a multiplicity of environmental objectives. This system was compared with a low-input cropping system designed to meet the same environmental objectives (PHEP: Productive with High Environmental Performances). This assessment carried out over eleven years, took place in a field trial in the Paris Basin (France). The ban of pesticides did not result in any significant difference in average yield between systems across the crop sequence. However, the yields of some crops were significantly reduced. In the pesticide-free system, the technological quality of cereal grains was not penalized. Most agri-environmental indicators showed better performance in the pesticide-free system. However, fuel consumption and labor time per hectare for weed control were significantly higher. The study identified highly effective farming strategies for avoiding pesticide use, as well as several technical bottlenecks limiting regular production in pesticide-free systems.
The first objective of the internship is to reference the existing databases on biodiversity as well as agronomic practices/systems at the global scale. A second objective is to perform an analysis of their level of overlap to define the potential of their joint analysis. Finally, based on a subset of this former work, a correlative analysis between agricultural practices and biodiversity could be engaged with regard of the interest of the student.

Agronomy joint research unit INRAE - AgroParisTech - Paris-Saclay University

Agronomy joint research unit

Our objective is to produce and mobilize scientific and expert methods and knowledge, from local to global, to (i) assess the impacts on the environment and ecosystem services of current and alternative cropping systems, and (ii) support stakeholders involved in the evolution of agricultural practices by designing resources (knowledge, tools and methods) with them
The Agronomy joint research unit includes researchers, teacher-researchers, engineers, technicians and research support staff. It is attached to the AgroEcoSystem departement of INRAE and to the SIAFEE Department (Agronomic, Forestry, Water and Environmental Sciences and Engineering) of AgroParisTech.

Download here a presentation of the unit