干旱区生态环境知识资源中心(Arid): Ecological risk assessment of the Gannan Plateau, northeastern Tibetan Plateau

Arid

	Ecological risk assessment of the Gannan Plateau, northeastern Tibetan Plateau
	Yue Dongxia; Zeng Jianjun; Yang Chao; Zou Mingliang; Li Kai; Chen Guanguang; Guo Jianjun; Xu Xiaofeng; Meng Xingmin
来源期刊	Journal of Mountain Science
ISSN	1672-6316
出版年	2018
卷号	15 期号:6 页码:1254-1267
英文摘要	Desertification, soil salinization and grassland degradation are the major environmental hazards faced by the Gannan Plateau, northeastern Tibetan Plateau. Ecological risk assessment plays an important role in formulating environmental management strategies yet little attention to this region. In this study, we established an ecological risk assessment index system based on 30 evaluation indices in the categories of hydrometeorology, ecological environment, ground surface disturbance, and society and economy for the Gannan Plateau. An entropy method was used to calculate an index weight, and subsequently the matter-element method was used together with extension theory to establish a matter-element extension model of ecological risk. We assessed the ecological risk in this region by calculating the degree of association between index layer, system layer and target layer, and the cumulative ecological risk index. The degrees of ecological risk for the counties of the region were determined by using ArcGIS which would represent a spatial heterogeneity of the risk grade in production. Our results showed that the areas of high ecological risk were in Zhouqu County and Zhuoni County, and others were of low risk (Hezuo City, Diebu County, Xiahe County and Lintan County) or intermediate risk (Maqu County). The results of the assessment were in accord with the actual observed situation. Thus, our ecological risk assessment index system is appropriate for this region and suggests that high risk counties need a priori ecological protection. Such research could provide a technological support which would potentially prevent or reduce disasters by establishing an ecological barrier to promote the sustainable development of Gannan Plateau.
英文关键词	Matter-element Extension theory Ecological risk assessment Ecosystem Gannan Plateau
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6247083
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335958
作者单位	Yue Dongxia, College of Earth and Environmental Sciences, Lanzhou University, Key Laboratory of Western Chinas Environmental Systems (Ministry of Education), Lanzhou, Gansu 730000, China.; Zeng Jianjun, College of Earth and Environmental Sciences, Lanzhou University, Key Laboratory of Western Chinas Environmental Systems (Ministry of Education), Lanzhou, Gansu 730000, China.; Yang Chao, College of Earth and Environmental Sciences, Lanzhou University, Key Laboratory of Western Chinas Environmental Systems (Ministry of Education), Lanzhou, Gansu 730000, China.; Zou Mingliang, College of Earth and Environmental Sciences, Lanzhou University, Key Laboratory of Western Chinas Environmental Systems (Ministry of Education), Lanzhou, Gansu 730000, China.; Li Kai, College of Earth and Environmental Sciences, Lanzhou University, Key Laboratory of Western Chinas Environmental Systems (Ministry of Education), Lanzhou, Gansu 730000, China.; Chen Guanguang, College of Earth and Environmental Sciences, Lanzhou University...
推荐引用方式 GB/T 7714	Yue Dongxia,Zeng Jianjun,Yang Chao,et al. Ecological risk assessment of the Gannan Plateau, northeastern Tibetan Plateau[J],2018,15(6):1254-1267.
APA	Yue Dongxia.,Zeng Jianjun.,Yang Chao.,Zou Mingliang.,Li Kai.,...&Meng Xingmin.(2018).Ecological risk assessment of the Gannan Plateau, northeastern Tibetan Plateau.Journal of Mountain Science,15(6),1254-1267.
MLA	Yue Dongxia,et al."Ecological risk assessment of the Gannan Plateau, northeastern Tibetan Plateau".Journal of Mountain Science 15.6(2018):1254-1267.