Abstract
The Erhai Lake basin is located in the Yunnan-Guizhou Plateau, with high altitude and fragile ecological environment. Frequent man-made activities have aggravated soil erosion in the Erhai Lake basin. To solve this problem, based on Universal Soil Loss Equation (USLE), the paper uses Visual Studio 2010 software, combines the ArcGIS Engine component library with the. NET platform and uses C# as programming language to complete the development of soil erosion assessment system in Erhai Lake basin. The system includes four modules: document management, factor calculation, erosion analysis and thematic maps. The operation results show that the system not only meets the needs of users for soil erosion assessment in Erhai Lake basin, but also improves work efficiency and simplifies the evaluation procedures for soil erosion. It is of great significance to protect the ecological environment, promote the rational use of resources in Erhai region and the sustainable development of the economy.
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