[1]SI Jinjin,WANG Shidong.Ecological Security Evaluation and Spatiotemporal Differentiation of Jiaozuo Mining Area Based on Combined Weighting Method[J].Research of Soil and Water Conservation,2021,28(03):348-354.
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Ecological Security Evaluation and Spatiotemporal Differentiation of Jiaozuo Mining Area Based on Combined Weighting Method
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 03
Page number:
348-354
Column:
Public date:
2021-04-20
- Title:
- Ecological Security Evaluation and Spatiotemporal Differentiation of Jiaozuo Mining Area Based on Combined Weighting Method
- Keywords:
- Jiaozuo mining area; ecological security; entropy method; combination empowerment; spatiotemporal evolution
- CLC:
- X826
- DOI:
- -
- Abstract:
- Ecological safety assessment is the basis and premise of ecological safety research. The healthy ecological environment is an important manifestation of regional ecological safety. Taking the village-level administrative area of the mining area in Jiaozuo City, Henan Province as the research site, we established an ecological safety evaluation index system based on the PSR model, determined the weights by the combination of analytic hierarchy process and entropy method, and used the comprehensive evaluation model to evaluate the security situations of the years 1999, 2008 and 2018, and analyze the characteristics of their changes in time and space. The results show that the comprehensive index of the study area in 1999 was 29.63, which was in an ecologically bad state; in 2008, it was 52.39, which was in an ecological early warning state; in 2018, it was 50.26, which was also in an ecological early warning state, and the overall ecological security situation showed an upward trend, especially in the repair area; the Fangzhuang No. 1 mine and Fangzhuang No.2 mine in Wuxian County had changed a lot, while the Guhanshan mine in Huixian City had the smallest change range; from 1999 to 2008, the research area underwent industrial adjustment and economic transformation, and carried out an urban environment as a result of vigorous management, the ecological security situation improved during this period; with the passage of time, the continued production of coal mines and the gradual expansion of the collapsed areas were the main reasons for the small changes in the ecological security situation from 2008 to 2018; from a spatial perspective, the ecological condition of Fangzhuang mine in Xiuwu County in the northwest of the study area from 2008 to 2018 was better than the other areas, while the ecological condition of Guhanshan mine in Huixian City in the central and western areas was inferior to the other areas. Pressure on resources and environment, ecological status and socio-economic response are the main influencing factors on changes in ecological security.
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Last Update:
2021-04-20