This one-day session will be dedicated to deeply explore soil organic matter dynamics and carbon quantification methods. 

This session is proposed to highlight the quantification of different forms of soil carbon: organic, mineral, biogenic, pedogenic and lithogenic, considering specific pedoclimatic conditions such as arid zones or calcareous environments. A special focus will be placed on the impacts of extreme climatic events and the challenges associated with soil characterization in these contexts. 

Characterization approaches at different scales (pore scale, laboratory, field, region) shall be addressed, together with the spatial and temporal variability of soil carbon. Expected contributions can cover a wide range of data acquisition tools (3D imagery, high-frequency measurements, long-term experiments, remote sensing) and combinations thereof. Emphasis will be put on data uncertainties and representativity, particularly in relation to the Monitoring, Reporting and Verification (MRV) process. 

Research studies concerning the stability of organic carbon in relation with the dynamics of organic matter are also welcomed.