The challenges of sequestering soil carbon

  • More knowledge, relevant field measurements and data at multiples scales are needed to better simulate and assess soil carbon sequestration issue and impact in future agricultural intensification pathways.
  • Farmer's decisions and farm activities are the results of synergies and tradeoffs (for instance yield versus larbor, benefits and risks). These affect carbon and nutrients cycles, and consequently the soil carbon sequestration potential, and in fine the sustainability of the agricultural systems. So, a multi-actors and a systemic approach is necessary to define relevant agricultural practices that jointly address farmers' objectives and global stakes (food security, ecological conservation, climate change mitigation...) in changing conditions (demographic, markets, climate).
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