[1]WEI Minghuan,HU Boyang,YANG Hongyan,et al.Effects of Land Use Transformation on Ecological Vulnerability in Mountainous Counties—Taking Qinglong Manchu Autonomous County as an Example[J].Research of Soil and Water Conservation,2018,25(06):322-328.
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Effects of Land Use Transformation on Ecological Vulnerability in Mountainous Counties—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 06
Page number:
322-328
Column:
Public date:
2018-10-26
- Title:
- Effects of Land Use Transformation on Ecological Vulnerability in Mountainous Counties—Taking Qinglong Manchu Autonomous County as an Example
- CLC:
- F301.24;X171
- DOI:
- -
- Abstract:
- Taking the Qinglong Manchu Autonomous County as the research area, we selected ten indexes from three aspects of exposure, sensitivity and adaptability to construct the evaluation index system by using the VSD model. Comprehensive index method was used to quantitatively evaluate the ecological vulnerability of the study area in 2001 and 2013, and the impact of land use change on ecological vulnerability was discussed. The results showed that: (1) from 2001 to 2013, the land use in the study area changed significantly, the unused land was converted into forest land and garden plot; the forestland at the beginning of the study period was destroyed to a certain extent, the construction land expanded rapidly through the occupation of agricultural land; (2) the ecological vulnerability in the study area showed the high trend in the northwest while it presented the low level in the central and eastern regions, and the ecological environment was developing towards the good status; it would be the important direction for ecological restoration and protection of the study area in the future to maintain the ecological protection measures in the northeast and southwest, and increase the strength of ecological rehabilitation in the northwestern; (3) the land use change in the study area had a significant impact on the ecological vulnerability; the increases of wood land and garden plot were the main reasons for the decrease of regional ecological vulnerability, while the expansion of construction land had a negative impact on the ecological environment. Strengthening the exploitation and utilization of unused land and controlling the disorderly expansion of construction land are the effective ways to reduce the ecological vulnerability and promote the coordinated development of economy and ecological environment.
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1900-01-01