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[1]YE Hui,WANG Jinliang,ZHAO Juanjuan.Assessment on Ecological Security in the Tropic of Cancer(Yunnan Section)Based on DPSIR-EES Model[J].Research of Soil and Water Conservation,2021,28(03):291-298.

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Assessment on Ecological Security in the Tropic of Cancer(Yunnan Section)Based on DPSIR-EES Model

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 28 Number of periods: 2021 03 Page number: 291-298 Column: Public date: 2021-04-20

Title:: Assessment on Ecological Security in the Tropic of Cancer(Yunnan Section)Based on DPSIR-EES Model

Author(s):: YE Hui^1,2,3, WANG Jinliang^1,2,3, ZHAO Juanjuan⁴; (1.College of Tourism and Geographic Sciences,Yunnan Normal University,Kunming650500,China;2.Key Laboratory of Resources and Environmental Remote Sensing for Universities in Yunnan,Kunming650500,China;3.Center for Geospatial Information Engineering and Technology of Yunnan Province,Kunming650500,China;4.Map Institute of Yunnan Province,Kunming650100,China)

Keywords:: ecological security evaluation; DPSIR-EES model; analytic hierarchy process; entropy method; Tropic of Cancer(Yunnan section)

CLC:: X826; X87

DOI:: -

Abstract:: Ecological security is gradually becoming an important part of the national security system. Carrying out ecological security evaluation research can provide a scientific basis for national ecological environmental protection, ecological civilization construction, and sustainable development of human and nature. Taking the county-level administrative area of the Tropic of Cancer(Yunnan section)as the research unit, combining the DPSIR model and the EES model, we constructed the regional ecological security evaluation index system of the Tropic of Cancer(Yunnan section), used the analytic hierarchy process and the entropy method to calculate each indicator separately based on the weighted value, and carried out the ecological safety evaluation research of the Tropic of Cancer(Yunnan section)through weighted superposition. The results show that:(1)the overall ecological security status of the Tropic of Cancer(Yunnan section)is critically safe, the local ecological security status is relatively fragile, and the spatial differences are more obvious, among which the areas with safe and relatively safe ecological environment status account for 37.87%, and distribute in the east and west of the study area with low population density and relatively extensive vegetation coverage, and areas with critically safe ecological environment status accounte for 28.87%, distributed throughout the study area; less safe and unsafe areas totaled 33.26%, and mainly distribute in the cities and counties in the middle of the study area where the economy is developing rapidly;(2)through the superposition analysis of the ecological environment safety assessment results and the main influencing factors, it is found that the main factors affecting the ecological environment safety are large-scale mining activities, frequent geological disasters, large-scale reclamation of cultivated land, long-term cultivation, and factors such as damage to vegetation and types of land use.

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Last Update: 2021-04-20