Dynamics of typical agricultural landscape and its relationship with water resource in inland Shiyang River watershed, Gansu Province, northwest China

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	Dynamics of typical agricultural landscape and its relationship with water resource in inland Shiyang River watershed, Gansu Province, northwest China
	Li, XY ; Xiao, DN ; He, XY ; Chen, W ; Song, DM
刊名	ENVIRONMENTAL MONITORING AND ASSESSMENT
	2006
卷号	123 期号:1-3 页码:199-217
关键词	cropping pattern groundwater land use change oasis runoff Shiyang River watershed
ISSN号	0167-6369
通讯作者	He, XY, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
中文摘要	Shiyang River basin is located in Hexi Corridor, central-west Gansu province, northwest China. It is an area of typical and to semiarid features. Based on the TM image of Liangzhou oasis and Minqin oasis in 1986 and 2000, this paper calculated and analyzed the changes of percentage and area of land use/cover types, and also have got the transformation matrix of the landscape mosaics. Dynamics of runoff and exploitation of groundwater, the most important factors influencing land use changes were also analyzed. The ratio of utilized water quantity in upper and middle reaches to that in lower reaches has increased largely from less than 2 before 1970 reached up to more than 8 since 1995; groundwater exploitation has developed progressively. As a result of overuse of groundwater, the groundwater table lowering obviously, the lowering rates reached up to 0.6-0.8 m/year in some place. In addition, the cropping patterns in study area were also distributed irrefficiently that if the planting percentage of water-wasting grain crops dropped to 50% in both oases, it could save irrigating water by 1.2x10(8) m(3) in Liangzhou oasis and 0.2x10(8) m(3) in Minqin oasis one year.
学科主题	Environmental Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000242360900012
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54811]
专题	沈阳应用生态研究所_沈阳应用生态研究所_期刊论文
推荐引用方式 GB/T 7714	Li, XY,Xiao, DN,He, XY,et al. Dynamics of typical agricultural landscape and its relationship with water resource in inland Shiyang River watershed, Gansu Province, northwest China[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2006,123(1-3):199-217.
APA	Li, XY,Xiao, DN,He, XY,Chen, W,&Song, DM.(2006).Dynamics of typical agricultural landscape and its relationship with water resource in inland Shiyang River watershed, Gansu Province, northwest China.ENVIRONMENTAL MONITORING AND ASSESSMENT,123(1-3),199-217.
MLA	Li, XY,et al."Dynamics of typical agricultural landscape and its relationship with water resource in inland Shiyang River watershed, Gansu Province, northwest China".ENVIRONMENTAL MONITORING AND ASSESSMENT 123.1-3(2006):199-217.