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[1]YAO Kun,ZHANG Cunjie,HE Lei,et al.Evaluation of Ecological Environment Vulnerability in the Northwest Plateau Area of Sichuan[J].Research of Soil and Water Conservation,2020,27(04):349-355,362.

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Evaluation of Ecological Environment Vulnerability in the Northwest Plateau Area of Sichuan

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 27 Number of periods: 2020 04 Page number: 349-355,362 Column: 目次 Public date: 2020-06-20

Title:: Evaluation of Ecological Environment Vulnerability in the Northwest Plateau Area of Sichuan

Author(s):: YAO Kun¹, ZHANG Cunjie², HE Lei³, LI Yuxia⁴, LI Xiaoju⁵; (1.College of Resources and Environment, Xichang University, Xichang, Sichuan 615000, China; 2.Climate Service, National Climate Center, Beijing 100081, China; 3.School of Software Engineering, Chengdu University of Information Technology, Chengdu 610103, China; 4.School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China; 5.Engineering College, Universitiy Putra Malaysia, Serdang Selangor Darul Ehsan 43400, Malaysia)

Keywords:: environment vulnerability; RS; GIS; the northwest plateau area of Sichuan

CLC:: X826

DOI:: -

Abstract:: In order to grasp the ecological environment vulnerability in the northwest plateau area of Sichuan in time, we evaluated and analyzed the ecological environment vulnerability in the region was and from 2000 to 2015 by using RS and GIS as technical means, and 9 indicators such as elevation, slope and land use type. The results showed that:(1)the ecological environment vulnerability of the whole region showed the decreasing trend from west to east;(2)the ratios of grids in micro and severe vulnerable areas were the largest and the smallest, respectively; potential, mild, and moderate centered and decreased in turn, and the proportion of grids in mild and below levels of vulnerability was more than 75%, and the region as a whole was at a moderate level of vulnerability;(3)the analysis of the overall trend showed that in the past 15 years, only 6.92% of the areas presented the obvious aggravation of vulnerability, while 93.08% of the areas presented the obvious improvement and no obvious change, and the overall ecological environment of the region was in a state of marked improvement;(4)the driving force analysis showed that the implementation of a series of ecological environment protection measures was the main factor on driving the improvement of regional ecological environment, and the construction of a large number of hydropower bases also posed the threat to the vulnerability of smaller parts.

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Last Update: 2020-07-09