凉山地区生态环境脆弱性的时空动态变化
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国家自然科学基金项目“汶川强震区潜在泥石流危险性判识及其差异性分析”(41102225);四川省科技支撑计划项目“川中丘陵区退耕还林工程的生态响应”(2014SZ0070)


Spatio-temporal Variation of Ecological Environment Vulnerability in Liangshan Region
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    [目的] 了解凉山地区2000—2010年生态环境脆弱性动态变化状况,为地区生态环境治理与保护提供参考依据。[方法] 将RS与GIS技术相结合,以生态敏感性—生态恢复力—生态压力度(SRP)为模型选取16个评价指标,利用空间主成分综合与动态变化分析模型从时间与空间相结合角度,对凉山地区2000—2010年生态环境脆弱性动态变化进行定量分析。[结果] 凉山地区生态环境脆弱性整体呈现南高北低的分布规律,就单一动态度而言潜在脆弱最大中度脆弱最小,就综合动态度分析该地区整体变化速度接近中度水平,而生态脆弱性综合指数则反映出该地区整体生态环境脆弱性有缓慢恶化趋势。[结论] 凉山地区生态环境脆弱性空间分布规律明显,生态环境治理力度仍需加大。

    Abstract:

    [Objective] The paper aims to understand the dynamic change of ecological environment vulnerability in Liangshan region from 2000 to 2010, and to provide references for regional ecological environment management and protection.[Methods] Using the technologies of RS and GIS and taking ecological sensitivity-resilience-pressure(SRP) model, we selected 16 evaluation indicators to conduct quantitative analysis on the spatio-temporal change of ecological environment vulnerability in Liangshan region during in 2000—2010.[Results] The ecological environment vulnerability of Liangshan region exhibited an overall trend of higher in south and lower in north; In terms of the single dynamic degree, the potential vulnerability was highest while moderate vulnerability was lowest, and the region's overall change speed was close to moderate level based on the comprehensive dynamic analysis, but the comprehensive index of ecological vulnerability indicated that the whole ecological environment vulnerability of the region exhibited a slow deteriorating trend.[Conclusion] The spatial distribution of ecological environment vulnerability in Liangshan region is obvious, and the ecological environment control efforts need to be strengthen.

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姚昆,吴亮,相恒星,何超,刘汉湖.凉山地区生态环境脆弱性的时空动态变化[J].水土保持通报,2017,37(1):329-334

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  • 收稿日期:2016-06-30
  • 最后修改日期:2016-07-20
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  • 在线发布日期: 2017-03-23
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