Abstract：Soil erosion in Jiangxi Province has enlarged caused by human activities during 1950s-1980s. With the Mountain-River-Lake Project carried out by Jiangxi government since 1980s, the aggravating trend of soil erosion was stopped. In this paper, the USLE model was used to evaluate the intensity of soil erosion by integrating the remotely sensed NDVI in 1995and EVI in 2005. Results showed that:(1) soil erosion in Jiangxi Province is mainly controlled by the topographic factor LS, and the area with above intense soil erosion are mainly distributed in the upstream of Poyang watershed with mountainous terrain, while there are very few soil erosion happened in the alluvial plain of Poyang and Jitai basin(2) the soil erosion has a decreasing trend with the annual amount of soil erosion decreased from 149.4million tons in 1995to 126.8million tons in 2005, the average soil erosion modulus decreased from 894.68tons/(km2.a) to 759.31tons/(km2.a), and the soil erosion area for above moderate intensity decreased from 16945km2in 1995to 13833km2in 2005; (3) The soil erosion intensity lowered in most of counties in Jiangxi Province. And the soil erosion modulus decreased significantly in these counties such as Dexing, Yushan, Wuyuan, Shangrao, Fuliang and Hengfeng. But the soil erosion modulus increased in few counties such as Jingangshan, Yongxin, Lianhua, Ruichang, Guangchang and Yongfeng in varying degrees.
齐述华, 蒋梅鑫, 于秀波. 基于遥感和ULSE模型评价1995~2005年江西土壤侵蚀[J]. 中国环境科学, 2011, 31(7): 1197-1203.
QI Shu-Hua, JIANG Mei-Xin, YU Xiu-Bo. Evaluating soil erosion in Jiangxi Province with USLE model and remote sensing technology during 1995~2005. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(7): 1197-1203.
