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	Recent land use changes in north dust storm source area affecting Beijing and Tianjin I: Agro-pastoral transitional zone
	Wang S. Y. ; Cai Q. G. ; Gao Y. C. ; Ieee
	2005
关键词	land use changes agro-pastoral transitional zone preventing dust storm RS GIS
页码	2402-2405
英文摘要	Dust storm became a severe environmental problem in Beijing and Tianjin Regions at the beginning of this century, and its trajectory stretches to Korea Peninsula, Japan Archipelago, comes through Pacific Ocean and vanishes at the cast of U.S.A. By means of remote sensing, ground station observation and sand samples, dust storm affecting Beijing and Tianjin Regions comes from Middle Asia and Mongolia Plateau. And, dust from desert margin, plowed farmland and degraded grassland contribute more to the dust weather. The middle part of Inner Mongolia Plateau is the closest sandy land to Beijing and Tianjin, and it is the path of the heaviest dust storm in 2000 that hits a far-reaching impact on China's government to manage environment. So, land use pattern and its changes in this area should be stressed on, for combating desertification. Landscape pattern is much mixed and it hits long history of pasturing and tillage in the area, its it whole, three categories of land use become obvious: agro-pastoral transitional zone, Otindag sandy land, and grassland. Based on remote sensing (RS) images of Landsat in 1987, 1995 and 2000, using geographical information systems (GIS), this paper delineates land use pattern in agro-pastoral transitional zone and analyses its land use changes. The outcome shows that great changes have taken place on land use in recent years, but due to different farming system the transitional zone suffered different desertification. The east, which locates at the south of Otindag sandy land, has large amount of sandy land. And sand-v land has surmounted to most other categories of land use, including in swamp or village. Accordingly proper countermeasures should be allocated to each land use pattern.
收录类别	CPCI
会议录出版者	Ieee
语种	英语
ISBN号	0-7803-9050-4
内容类型	会议论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/25313]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Wang S. Y.,Cai Q. G.,Gao Y. C.,et al. Recent land use changes in north dust storm source area affecting Beijing and Tianjin I: Agro-pastoral transitional zone[C]. 见:.

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