Cropping System Conversion led to Organic Carbon Change in China's Mollisols Regions.

ABSTRACT: Land use change driven by diet, globalization, and technology advancement have greatly influenced agricultural production and environment in the mollisols region of China, with a marked impact on the depletion of soil organic matter, a signature property of mollisols. Here we report findings on soil organic carbon (SOC) change in three different cropping systems (soybean, soybean/maize, corn) in Northeast China during a 10-year time span. The results indicated that the decline rate of SOC in recent ten years (0.27 g kg^-1 yr^-1) has slowed down considerably compared to previous decades (1.12 g kg^-1 yr^-1). Crop system conversion from soybean monocropping to corn monocropping or break system was the critical factor for SOC change, and the background

SUBMITTER: Tong Y 

PROVIDER: S-EPMC5741738 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature