水土保持学报2009，Vol.23Issue(5)：44-50,7.
艾比湖地区30多年来土壤侵蚀时空变化规律研究
Research on Spatial-Temporal Change of Soil Erosion in Ebinur Lake in 33 Years
摘要
Abstract
Based on remote sensing and GIS technology,we monitored the soil erosion area of Ebinur Lake in Xinjiang from 1972 to 2005 and meanwhile analyzed the spatial-temporal changes during the past 33 years. And the results showed that the main type of soil erosion in the area was wind erosion. Correspondingly, the water erosion area changed lightly while different intensity grades of soil erosion area varied distinctly in this area. And the characteristics were as following: Firstly, the erosion area was declining from 1977 to 2005, and especially, the decline was notable in the period of 1992 ?2001 and the erosion intensity grades were mainly light and heavy types. Besides, in the period of 2001 ?2005, the reduction of the area of moderate and light intensity grade soil erosion was the mainly reason for the erosion area decline. However, from 1972 to 1977, the erosion area increased a little. Secondly, the erosion change speed declined from 1977 to 2005 as a whole, moreover, the decline tendency got faster in the period of 1990 ?2005. Thirdly, the erosion intensity grade had a decline tendency. Specifically, water erosion changed a little but wind erosion changed a lot. And the mainly change was from heavy erosion to light erosion. In conclusion, there were two reasons for above erosion characteristics in Ebinur Lake. For one thing, the water surface of the Ebinur Lake was enlarging. For another, the government took a series of ecological protection measures and other construct project to reduce wind e-rosion around the Ebinur Lake. As a result, the local ecological environment got better and better.关键词
艾比湖/遥感/GIS 土壤侵蚀/时空变化Key words
Ebinur Lake/remote sensing/GIS/soil erosion/spatial-temporal change分类
农业科技引用本文复制引用
赵晓丽,张增祥,刘斌,易玲..艾比湖地区30多年来土壤侵蚀时空变化规律研究[J].水土保持学报,2009,23(5):44-50,7.基金项目
国家科技支撑计划项目(2006BAC0880405) （2006BAC0880405）
