[1]Lü Yuanyang,LIU Zhihong,YE Bangping,et al.Evaluation on Ecological Sensitivity of Chuanxi Plateau Based on GIS[J].Research of Soil and Water Conservation,2016,23(01):272-277.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 01
Page number:
272-277
Column:
Public date:
2016-02-28
- Title:
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Evaluation on Ecological Sensitivity of Chuanxi Plateau Based on GIS
- Author(s):
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Lü Yuanyang, LIU Zhihong, YE Bangping, ZHANG Si, ZHANG Yang
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College of Resources and Environment, Chengdu University of Information Technology, Chengdu 610225, China
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- Keywords:
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ecological sensitivity; Chuanxi Plateau; GIS; spatial analysis
- CLC:
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X826
- DOI:
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- Abstract:
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Chuanxi Plateau is located in transition zone from the first to the second step, its ecological type is complex and its ecological sensitivity evaluation is crucial to environmental protection decision of Sichuan Province and ecological function zoning of China. Using the multifactor comprehensive analysis method, the sensitivity of water erosion, freeze-thaw erosion, desertification sensitivity, sensitivity of rocky desertification were selected as the basis of ecological sensitivity evaluation of the West Sichuan Plateau. The results showed that: (1) moderately water erosion sensitive area in Chuanxi Plateau is 14 312.62 km2, mainly distributes in central Liangshan State, south of Ganzi State; (2) moderate and above freezing thawing erosion sensitive area in Chuanxi Plateau is 46 250.68 km2,mainly distributes in northwest of Ganzi State,south of Aba state; (3) moderate desertification sensitive area in Chuanxi Plateau is 1 956.49 km2,mainly distributes in northwest of Ganzi State,central Liangshan State; (4) moderate and above stony desertification sensitive area in Chuanxi Plateau is 765.88 km2,mainly distributes in south of Aba State,east and southwest of Ganzi State. These high sensitivity areas are also the ecological deterioration areas,should be paid enough attention and effective measures should be taken to prevent environmental degradation.