干旱区生态环境知识资源中心(Arid): Evaluation of the Stability and Suitable Scale of an Oasis Irrigation District in Northwest China

Arid

DOI	10.3390/w12102837
	Evaluation of the Stability and Suitable Scale of an Oasis Irrigation District in Northwest China
	Zhang, Xifeng; Zhang, Yifan; Qi, Jinghui; Wang, Qiang
通讯作者	Wang, Q
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:10
英文摘要	Oases support human activities in arid and semiarid regions, and their stability is important for regional sustainable development and water resource management. Water consumption is the major factor affecting the stability of oases. On the basis of remote sensing images, evaporation and socioeconomic data, this study first evaluates the stability of the Dunhuang Oasis against the expansion of an oasis irrigation district and planting structure changes from 1987 to 2015. Next, it calculates a suitable area of the oasis irrigation district using water-energy balance theory. The results are as follows: (1) During the 1987-2015 period, with the expansion in the oasis irrigation area, the planting structure underwent a marked transformation from food crops to cash crops to orchards. Water consumption pattern likewise changed considerably. (2) The stability of the Dunhuang Oasis continued to weaken from 0.54 in 1987 until it reached a dangerously unstable level of 0.17 in 2010. With the implementation of water-saving measures and a water-transfer project, the stability of the Dunhuang Oasis irrigation district increased to a metastable level of 0.22 in 2015. (3) Setting the stability are 0.5 of a stable level and 0.75 of an extremely stable level, and the oasis irrigation district should be impractical and reduced by 168 and 241 km(2) to attain a suitable oasis ecosystem scale. Hence, at present, the water-transfer project is the most practical way to increase allocated water resource to the oasis irrigation district for improving its stability.
英文关键词	oasis irrigation district stability evaluation suitable scale
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000585485500001
WOS关键词	RIVER-BASIN ; WATER ; DESICCATION ; MANAGEMENT ; IMPACTS
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327297
作者单位	[Zhang, Xifeng] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Zhang, Yifan] Hubei Agr Planning & Design Inst, Wuhan 430070, Peoples R China; [Qi, Jinghui] Zhengzhou Univ Aeronaut, Sch Civil Engn & Architecture, Zhengzhou 450000, Peoples R China; [Wang, Qiang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xifeng,Zhang, Yifan,Qi, Jinghui,et al. Evaluation of the Stability and Suitable Scale of an Oasis Irrigation District in Northwest China[J],2020,12(10).
APA	Zhang, Xifeng,Zhang, Yifan,Qi, Jinghui,&Wang, Qiang.(2020).Evaluation of the Stability and Suitable Scale of an Oasis Irrigation District in Northwest China.WATER,12(10).
MLA	Zhang, Xifeng,et al."Evaluation of the Stability and Suitable Scale of an Oasis Irrigation District in Northwest China".WATER 12.10(2020).