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Journal of Mountain Science

, Volume 8, Issue 6, pp 845–854 | Cite as

Soil erosion control degree of the project of converting farmland to forest in mountainous areas at China’s Southwest border: A case study in Mangshi, Yunnan Province

  • Zisheng YangEmail author
  • Huali Han
  • Qiaogui Zhao
Article

Abstract

There have been few in-depth quantitative studies on soil erosion control and the ecological effects of land use changes. Soil erosion is the first eco-environmental problem particularly in mountainous areas. A major problem in the conversion of farmland to forest is to control soil erosion and improve ecological environment and thus to improve land use sustainability. We report results of calculation and analysis on soil erosion from converted farmland parcels in city of Mangshi (near the SW frontier of China) and the surrounding areas before and after the nine-year (2000–2009) project of converting farmland to forest. There was increased water conservation effect, as a result of decreased soil erosion. The average erosion modulus of the farmland returning to eco-friendly uses decreased by 5,535.59 t/km2·a and the control degree of soil erosion modulus reached 71.00%. The increased soil erosion after the returning in the typical sample area “did not drop, but increased” as the terraced fields decreased but sloping farmland increased and yet woodland decreased.

Keywords

Soil erosion Control degree The project of converting farmland to forest Converted farmland parcel Typical sample area Mountainous areas at China’s southwest border 

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Copyright information

© Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.Institute of Land & Resources and Sustainable DevelopmentYunnan University of Finance and EconomicsKunmingChina
  2. 2.Southwest UniversityChongqingChina
  3. 3.Department of Land & Resources of Yunnan ProvinceKunmingChina

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