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Journal of Mountain Science

, Volume 1, Issue 1, pp 46–56 | Cite as

Soil erosion under different land use types and zones of Jinsha River Basin in Yunnan Province, China

  • Yang Zisheng
  • Liang Luohui
Article

Abstract

Severe soil erosion in the middle and upper reaches of Yangtze River has been regarded as a major environmental problem. The on-site impact of soil erosion on agricultural production and the off-site impact on floods and sedimentation in Yangtze Rive are well known. A quantitative assessment of soil erosion intensity is still scanty for developing appropriate soil erosion control measures for different land use types and zones in this region. This article constructs a localized USLE and estimates the average soil loss in the Jinsha River Region in Yunnan Province, one of the priority areas for soil erosion control in the middle and upper reaches of Yangtze River. The estimation is done under different land uses and zones in this basin. The estimation shows that while soil erosion in the cultivated land is the most severe, 36–40% of the garden and forest land suffers from soil erosion of various degrees due to lack of ground cover and other factors. Soil erosion in the pasture is modest when the ground cover is well maintained. It also confirmed that terracing can reduce soil erosion intensity significantly on the cultivated land. Research findings suggest that sufficient attention must be paid to regeneration of the ground cover in reforestation programs. In addition to mass reforestation efforts, restoration of grassland and terracing of the cultivated land should also play an important role in erosion control.

Keywords

Soil erosion soil loss equation land use type soil erosion control Jinsha River Basin in Yunnan 

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Copyright information

© Institute of Moutain Hazards and Environment, Chinese Academy of Sciences and Science Press 2004

Authors and Affiliations

  • Yang Zisheng
    • 1
    • 2
  • Liang Luohui
    • 3
  1. 1.Institute of Land & Resources and Sustainable DevelopmentYunnan University of Finance and EconomicsKunmingChina
  2. 2.School of Resources Environment and Earth ScienceYunnan UniversityKunmingChina
  3. 3.Environment and Sustainable Developmentthe United Nations UniversityTokyoJapan

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