Landuse/landcover changes in Zhangye oasis of Hexi Corridor

CORC > 北京大学 > 城市与环境学院

	Landuse/landcover changes in Zhangye oasis of Hexi Corridor
	Meng Jijun ; Wu Xiuqin ; Li Zhengguo
刊名	Journal of Geographical Sciences
	2003
关键词	landuse/landcover changes (LUCC) Zhangye oasis Hexi Corridor
英文摘要	Taking two false color composite Landsat 5 TM (Thematic Mapper) images of band 4,3,2 taken in 1995 and 2000 as data resources, this paper carried out study on LUCC of Zhangye oasis in recent five years by interpretation according to land resources classification system of 1:100,000 Resources and Environmental Database of the Chinese Academy of Sciences. The results show that great changes have taken place in landuse/landcover in Zhangye oasis since 1995: (1) Changes of landuse structure show that cropland and land for urban construction and built-up area increased, on the contrary, water area and grassland decreased. These changes reflect the deterioration of eco-environment and the acceleration of urbanization, and also indicate the problems existing in the arrangement of water and land resources between the upper and lower reaches of the Heihe River. (2) Regional differences of landuse/landcover are evident, characterized by following aspects: in Sunan County located in Qilian Mountain area, unused land and grassland decreased, but cropland and land for urban construction and built-up area increased. In Minle and Shandan counties located in foothills, unused land, water area and cropland decreased, but grassland and land for urban construction and built-up area increased. In Zhangye City, Linze County and Gaotai County located in plain area of the middle reaches of the Heihe River, unused land, water area and grassland decreased, while woodland, cropland and land for urban construction and built-up area increased.; National Natural Science Foundation of China for Young Scholars (No. 40101002; No. 40201001); 中国科学引文数据库(CSCD); 1; 71-75; 13
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/427459]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Meng Jijun,Wu Xiuqin,Li Zhengguo. Landuse/landcover changes in Zhangye oasis of Hexi Corridor[J]. Journal of Geographical Sciences,2003.
APA	Meng Jijun,Wu Xiuqin,&Li Zhengguo.(2003).Landuse/landcover changes in Zhangye oasis of Hexi Corridor.Journal of Geographical Sciences.
MLA	Meng Jijun,et al."Landuse/landcover changes in Zhangye oasis of Hexi Corridor".Journal of Geographical Sciences (2003).