Abstract
The impacts of climatic change and land‐cover change on soil carbon displacement by water erosion were investigated using a global ecosystem carbon cycle model (Sim‐CYCLE) and an empirical erosion model (RUSLE). Simulations considering the climate and land‐cover changes were performed in two phases, from 1901 to 1990 on the basis of historical data, and from 1991 to 2100 using climate projections in the IPCC Forth Assessment Report. During the first phase, total lateral displacement of soil carbon was estimated to be 1.6 ± 0.1 Pg C y−1 with remarkable geographical heterogeneity, and it was gradually intensified in regions where forests were converted into croplands. During the second phase, both projected rainfall and land‐use changes affected the erosion regime in many regions. Consequently, the total amount of soil carbon displacement increased by 32–57%, implying an intensified vulnerability to soil loss and further perturbations in the carbon cycle.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.