AMG-LAB

Adaptation of the AMG model for low-carbon agricultural levers

Rapeseed Tournesol Pois d'hiver Pois de printemps Soja Féverole d'hiver Féverole de printemps Lentille Pois chiche Lin d'hiver Lin de printemps Lupin d'hiver Lupin de printemps Cameline Chanvre
Fertilité et gestion durable des sols
Compatible
Agir pour la transition agroécologique
  • Project Status
    En cours
  • Start date
    01/10/2024
  • Pilot structure
    Arvalis
  • Total cost

    416,076 euros

  • Geographic area
    National
  • Referent(s)

    Anne-Sophie Perrin – as.perrin@terresinovia.fr

  • Duration
    48 months
  • Funded by

    ADEME

The Issues

In the context of climate change, the National Low-Carbon Strategy sets France’s goal of achieving carbon neutrality by 2050. The adoption of agricultural practices that promote carbon sequestration in the soil is one of the potential levers for achieving this. To assess carbon storage in soils, simulation models must be used. The AMG model allows for the simulation of changes in soil organic carbon stocks at the plot level. However, the evolving diversity of cropping systems necessitates the evaluation and updating of the model to maintain its performance and robustness.
 

The AMG-LAB project will therefore develop a new version of the AMG model with an expanded scope of validity and an evaluation across a wide range of agro-pedoclimatic conditions.
 

The objectives

Through three main objectives, the AMG-LAB project aims to:
• Improve estimates of soil carbon inputs associated with crops and cover crops in organic farming and conservation agriculture systems, as well as in temporary and permanent grassland systems and vineyards.
•    To improve the formalisms and parameterization related to carbon mineralization, particularly by better accounting for carbon allocation across different soil layers in relation to tillage and carbon inputs from the atmosphere and roots. The model’s performance in specific soil-climate contexts will be evaluated.
•    To assess the model’s utility in environmental assessment tools for estimating the carbon sequestration/release balance at the scale of new cropping systems and the effect of climate change on soil carbon dynamics.
  

Expected results

• Development and sharing with the scientific community of trial databases to establish new crop parameters for AMG, to be published in a Dataverse.
• A new version of the AMG model incorporating updated formalisms related to mineralization and evaluated under a wide range of agro-pedoclimatic conditions.
•    A multi-criteria environmental assessment of crops and low-carbon cropping systems.
• Dissemination of the improved model version to the scientific
community• Updating of simulation tools available to agricultural advisors and farmers (e.g., Simeos-AMG for field crops)
 

Achievements and Impact

Our partners in this project

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