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Soil erosion significantly reduces organic carbon and nitrogen mineralization in a simulated experiment
Agriculture, Ecosystems & Environment ( IF 6.0 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.agee.2020.107232 Liping Qiu , Hansong Zhu , Jiao Liu , Yufei Yao , Xiang Wang , Guohua Rong , Xiaoning Zhao , Mingan Shao , Xiaorong Wei
Agriculture, Ecosystems & Environment ( IF 6.0 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.agee.2020.107232 Liping Qiu , Hansong Zhu , Jiao Liu , Yufei Yao , Xiang Wang , Guohua Rong , Xiaoning Zhao , Mingan Shao , Xiaorong Wei
Abstract Soil erosion has important influence on soil processes and particularly soil nutrient dynamics, which in turn affects the terrestrial C and N cycling and greenhouse gases emission. However, the responses of carbon (C) and nitrogen (N) cycling in soils and soil fractions to erosion remain largely unclear, hindering the precise prediction of the fate of C and N in the terrestrial ecosystem. Herein, we compared the mineralization of organic carbon (OC) and N at two different temperatures (15 and 25 °C) in bulk soils and aggregate fractions of 19 soils before and after a simulated rainstorm. The temperature sensitivity (Q10) of OC and N mineralization was calculated. Soil samples were collected from 9 sites across China, with soil types of Alfisols, Inceptisols, Mollisols, Ultisols, and land uses of croplands, grasslands, and woodlands. The soil aggregate fractions were >2, 2-1, 1-0.25 and
更新日期：2021-02-01
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