[1]WEI Minghuan,HU Boyang,ZHANG Guijun,et al.Analysis on Dynamic Change of Land Ecological Vulnerability in Mountainous County—Taking Qinglong Manchu Autonomous County as an Example[J].Research of Soil and Water Conservation,2018,25(02):322-327.
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Analysis on Dynamic Change of Land Ecological Vulnerability in Mountainous County—Taking Qinglong Manchu Autonomous County as an Example
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 02
Page number:
322-327
Column:
Public date:
2018-04-03
- Title:
- Analysis on Dynamic Change of Land Ecological Vulnerability in Mountainous County—Taking Qinglong Manchu Autonomous County as an Example
- CLC:
- X171
- DOI:
- -
- Abstract:
- The study of land ecological vulnerability has an important role in strengthening the ecological restoration and protection of mountain areas, and promoting the coordinated development of resources, environment and social economy. This article took Qinglong Manchu Autonomous County as an example, and the evaluation index system was built from natural conditions and human factors with seven indicators. The ecological vulnerability of the study area in 2001, 2007 and 2013 was quantitatively evaluated by the comprehensive index method, and then the spatial and temporal distribution of the ecological vulnerability was analyzed. Finally, the change slope method was used to analyze the evolution trend of ecological vulnerability. The result shows that:in 2001, 2007 and 2013, the mild vulnerable area accounts for 50.56%, 52.50%, 54.97%, respectively, in the study area, and the proportion above moderate vulnerable area decreased from 48.84% to 44.35%, which means that the ecological vulnerability of the study area is significant, but the mild vulnerability was dominant, and the ecological vulnerability was developing towards a good situation; the ecological vulnerability of land ecosystem was high in the northwest and low in the east; the light vulnerable area significantly increased, and the middle and high vulnerable areas significantly reduced, and there was no significant change trend of vulnerability in the most other regions.
- References:
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