Spatio-Temporal Change of the Cover and Management Factor in the Soil Erosion Prediction Model in Hunan Province, China * This research was supported by the Project of National Natural Science Foundation of China (41371184) and Water Science and Technology Program of Hunan Province in China (2017-230-40). - Hongxia Xie; Qing Zhou; Shengyun Zheng; Haitao Wang; Min Zhang; Yadong Guo (Agro-Geoinformatics, 2018)