基于RUSLE模型的六盘水市土壤侵蚀评价

doi:10.11934/j.issn.1673-4831.2016.03.009

Abstract

Abstract:

Mining mineral resources will easily lead to destruction of land resources and deterioration of eco-environment in mining areas. In order to explore effect of coal mining on soil erosion and evaluate the situation of soil erosion in Liupanshui, a major coal mining based city in Southwest Guizhou Province, based on related soil texture, terrain, meteorology, land cover and land use data, status quo and spatial distribution of soil erosion in the city was studied and characterized, with emphasis on distribution of soil erosion in the mining area using the RUSLE model and GIS spatial analysis method. Results show that the soil erosion in Liupanshui is mostly mild and moderate, with severe erosion distributed only in the east and south of Shuicheng County, the east of Liuzhi Special Zone and the central of Panxian County; that soil erosion mainly occurs in woodlands, meadows, dry lands, mining area and bare land where human disturbance is intense; that the mining area in the south of Liupanshui is quite severe in soil erosion as compared with others, but yet dominated with moderate erosion, mainly because mining activities triggers geological disasters which in turn lower the effect of soil erosion controlling factors; and that the situation of private-owned coal minings is much worse than that of state-owned ones. It is, therefore, important for private-owned coal minings to intensify protection and management of the land resources in the process of coal mining.

Key words: GIS, soil erosion, RULSE, coal mining area

CLC Number:

S157
X87

YIN Lu, YAN Qing-wu, BIAN Zheng-fu. Evaluation of Soil Erosion of Liupanshui City Based on Revised Universal Soil Loss Equation(RUSLE).[J]. Journal of Ecology and Rural Environment, 2016, 32(3): 389-396.

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Evaluation of Soil Erosion of Liupanshui City Based on Revised Universal Soil Loss Equation(RUSLE).

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