西北林学院学报2011，Vol.26Issue(5)：198-202,5.
黄河首曲玛曲县高寒草地沙化景观动态研究
Landscape Dynamics of Land Desertification of Different Origins of First Bends of Yellow River in Maqu County
摘要
Abstract
Based on Landsat TM remote sensing data of the year 1994,2001 and 2008, this article presented the dynamic changes of land desertification of different origins of Yellow River first bends in Maqu County. The results showed that (1) the total area of desertification in the study area increased from 1994 to 2008, and the Yellow River bank in-situ sand accumulation desertification was the fastest expansion type; (2) in 1994, 2001 and 2008, the patch density and patch separation index of different desertification lands showed a decreasing trend, the stability of sandy landscapes in study area strengthened gradually; (3) the distribution centroid of desertification patches moved towards Northwest in Maqu County. Due to the expansion of Yellow River terrace in-situ sand accumulation desertification in Northwest.关键词
沙化；景观格局；黄河首曲Key words
desertification/ landscape pattern/ Yellow River first bend分类
农业科技引用本文复制引用
陈芳,魏怀东,徐先英,周坚华,唐进年,刘虎俊..黄河首曲玛曲县高寒草地沙化景观动态研究[J].西北林学院学报,2011,26(5):198-202,5.基金项目
甘肃省技术研究与开发专(0805TCYH030). （0805TCYH030）
