Modelling soil organic carbon stocks in global change scenarios: a CarboSOIL application

Critical carbon input to maintain current soil organic carbon stocks in global wheat systems

Soil organic carbon (SOC) dynamics in croplands is a crucial component of global carbon (C) cycle. Depending on local environmental conditions and management practices, typical C input is generally required to reduce or reverse C loss in agricultural soils. No studies have quantified the critical C input for maintaining SOC at global scale with high resolution. Such information will provide a b...

Potential responses of soil organic carbon to global environmental change.

Recent improvements in our understanding of the dynamics of soil carbon have shown that 20-40% of the approximately 1,500 Pg of C stored as organic matter in the upper meter of soils has turnover times of centuries or less. This fast-cycling organic matter is largely comprised of undecomposed plant material and hydrolyzable components associated with mineral surfaces. Turnover times of fast-cyc...

Monitoring and Modelling Soil Organic Carbon Stocks and Flows: a New Zealand Perspective

We developed further an IPCC-based Carbon Monitoring System (CMS) to monitor soil C stocks and flows for New Zealand. Geo-referenced soil C data were extended from 340 to 1119 sites (0.3 m depth) and used to assign steady-state soil C stocks to various combinations of soil class, climate, and land use. Overall, CMS soil C stock estimates are consistent with detailed, stratified soil C measureme...

Spatial distribution of soil organic carbon stocks in France

Soil organic carbon plays a major role in the global carbon budget, and can act as a source or a sink of atmospheric carbon, thereby possibly influencing the course of climate change. Changes in soil organic carbon (SOC) stocks are now taken into account in international negotiations regarding climate change. Consequently, developing sampling schemes and models for estimating the spatial distri...

Modelling soil organic carbon stocks and their changes in the 1 northeast of Spain