Mapping soil organic carbon stock change by soil monitoring and digital soil mapping at the landscape scale

International audienceUnderstanding the multifunctional role of soil in ecosystem functioning is crucial, and soil scientists have recently give more importance to quantifying the contribution of soils to climate change mitigation (Paustian et al., 2016). The soil system is considered a significant terrestrial sink of carbon. Therefore, quantifying and mapping Soil Organic Carbon (SOC) change over time is crucial to manage agroecosystems sustainably and preserve soil resources at multiple scales, from local to global. The landscape scale appears to be a relevant scale for addressing this issue for the environment and agroecosystems (Viaud et al., 2010). This scale allows interactions between SOC dynamics and natural and anthropogenic processes to be considered