Effect of Land Use Change on Soil Erosion of Yangbijiang River Watershed in Yunnan Province

摘要：

The Land Use data were obtained by complex analysis of 3S, then GIS spatial analysis and traditional statistical analysis were employed in creating new GRID databases with complex data through algebra operations of the maps in GRID format under the GRID Modular of GIS software; secondly, data of land use transfer matrix during the research period and the data of soil erosion on deferent land use types were obtained through statistical calculation of the new-created attribute table; thirdly, the integrated soil erosion index was calculated to show soil erosion degree and its change in different land use types. The results showed that the effect of soil erosion degree on tilth, woodland and grassland was larger than on the other land use types; the degree of soil erosion was relieved by the transformation from the other land use types to woodland and grassland; on the contrary, the degree of soil erosion was aggravated by the transformation from the other land use types to tilth.

关键词： Yangbijiang River watershed land use effect of soil erosion degree 3S

作者: ZENG Heping WANG Jian ZHOU Yue

作者单位: Faculty of Environment Science and Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China

会议类型: 国际会议

会议名称: 2007环境科学与技术国际会议(The 2007 International Symposium on Environmental Science and Technology)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-11-13（万方平台首次上网日期，不代表论文的发表时间）