Method and application of ecological environment vulnerability evaluation in arid oasis - A case study of Turpan Oasis, Xinjiang

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	Method and application of ecological environment vulnerability evaluation in arid oasis - A case study of Turpan Oasis, Xinjiang
	Fang Shifeng
	2013
关键词	Climatology Arid regions Ecosystems Remote sensing Restoration Water supply
英文摘要	The Turpan Oasis, located on arid and semi-arid area in the east of Xinjiang, is affected by land degradation and desertification due to interaction of a set of natural and anthropogenic factors. It is a typical and key agricultural area with apparent oasis ecosystem vulnerability and sensitivity. Carrying out ecological environment vulnerability research in Turpan region has a great strategic meaning to eco-environment restoration and eco-environment long lasting development. In this study, the theory and method of ecological environment vulnerability were studied, and the concept of ecological environment vulnerability was put forward. From the characteristics and the causes of ecological vulnerability, we built multiobjective and multilayer ecological vulnerability evaluation index system framework, and a Pressure-state-respond (PSR) model was built to evaluate the ecosystem vulnerability. The results showed that: (1) more than 80% of the total area has reached the moderate degree of ecological vulnerability, and nearly 1/6 of the total area is up to the serious level. (2) There is a visible spatial distribution of the vulnerability degree in the whole study area, which is obviously increasing from the east to the west; meanwhile, the ecological vulnerability degree of inner oasis is significantly lower than the outward parts. (3) The results of the ecological vulnerability degree have a significant relationship with the land cover and land use, the vulnerability degree is increasing synchronous with the rise of the ratio of desertification land. (4) Desertification control and ecological water use guarantee are key points of the ecological restoration and reconstruction in the Turpan Oasis.
出处	Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University
卷	38 期:5 页:528-532
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/31186]
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	Fang Shifeng. Method and application of ecological environment vulnerability evaluation in arid oasis - A case study of Turpan Oasis, Xinjiang. 2013.