首页|Effect of conversion of farmland to forest or grassland on soil erosion intensity changes in Yanhe River Basin, Loess Plateau of China

Effect of conversion of farmland to forest or grassland on soil erosion intensity changes in Yanhe River Basin, Loess Plateau of China

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Dynamic changes of soil erosion affected by conversion of farmland to forest or grassland in the Yanhe River Basin were analyzed based on the revised universal soil loss equation (RUSLE). The RUSLE variables were selected and calculated reasonably using the GIS techni-que. Results show that: 1) After the conversion of farmland to forest or grassland, soil erosion decreased greatly.Compared with soil erosion in period of 1986 to 1997, the soil erosion amount had been reduced on the average by 30.6% by 2000; 2) Of the different land uses, slope farmland, especially the steep slope land had the greatest impact on soil erosion. The conversion of forest or grassland was the main driving force for the reduction of soil erosion; 3) In the short term, soil erosion was mainly controlled by C-factor, implying that the adjustment of land use structure might be an effective approach to reduce soil erosion.

conversion of farmland to forest or grasslandRUSLEArcGISLoess Plateau

Bangwen WANG、Qinke YANG、Zhihong LIU

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Jiangxi Provincial Research Institute of Soil and Water Conservation,Nanchang 330029, China

Institute of Soil and Water Conversation, Chinese Academy of Sciences,Ministry of Water Resources, Yangling 712100, China

Chengdu University of Information Technology, Chengdu 610225,China

Study of the Experimental Model of Regional Soil and Water Lossspecific program of harnessing the Yellow River of the Yellow River Conservancy CommissionProcess and Trend Analysis on Regional Water and Soil Loss国家重点基础研究发展规划(973计划)

2004SZ012042007CB407203

2009

10.1007/s11461-009-0015-5

中国高等学校学术文摘·林学
高等教育出版社

中国高等学校学术文摘·林学

ISSN：1673-3517
年,卷(期)：2009.4(1)
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