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Guizhou Province is located in the karst area of southwestern China and is also the world's largest exposed karst contiguous area. The geological conditions in the region are complex, and karst is extremely developed. The landform types are diverse, the ecological environment is fragile, and the anti-interference ability is poor, which poses serious challenges to the ecological environment and ecological security, and will cause serious harm to the regional social and economic development. Therefore, this research takes different factors affecting soil erosion (Fractional Vegetation Cover index, topography, and human activities) as research objects, and combines field survey sampling and high-precision aerial surveying to construct an evaluation index system for soil erosion in karst areas. At the same time, taking a river basin in Guizhou Province as an example, the comprehensive evaluation of soil erosion status in the river basin shows that the erosion intensity in the river basin is mainly mild erosion: mild erosion accounts for 42.33% of the total area, micro erosion accounts for 41.11%, and moderate erosion accounts for 15.12%.

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Monitoring and Investigation of Soil Erosion in River Basin Based on Multi-source Remote Sensing

  • 会议论文

  • 发表日期：

    2025年

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  • Yunhe Hu,
  • Junwei Zhang,
  • Chao Zhou,
  • Guoqing Gao,
  • Shikai Cao,
  • Maofei Chen,
  • Hongyang Mao

摘要

Guizhou Province is located in the karst area of southwestern China and is also the world's largest exposed karst contiguous area. The geological conditions in the region are complex, and karst is extremely developed. The landform types are diverse, the ecological environment is fragile, and the anti-interference ability is poor, which poses serious challenges to the ecological environment and ecological security, and will cause serious harm to the regional social and economic development. Therefore, this research takes different factors affecting soil erosion (Fractional Vegetation Cover index, topography, and human activities) as research objects, and combines field survey sampling and high-precision aerial surveying to construct an evaluation index system for soil erosion in karst areas. At the same time, taking a river basin in Guizhou Province as an example, the comprehensive evaluation of soil erosion status in the river basin shows that the erosion intensity in the river basin is mainly mild erosion: mild erosion accounts for 42.33% of the total area, micro erosion accounts for 41.11%, and moderate erosion accounts for 15.12%.