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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (11): 227-231.doi: 10.11924/j.issn.1000-6850.2011-3323

所属专题： 农业生态

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

典型喀斯特地区生态安全评价及防治措施探讨──以贵州省石阡县为例

杨尽利 周忠发 邱添   

  • 收稿日期:2011-11-09 修回日期:2011-12-16 出版日期:2012-04-15 发布日期:2012-04-15
  • 基金资助:

    贵州省优秀青年科技人才培养对象专项资金“典型喀斯特石漠化综合防治效果监测与空间决策支持系统研究及示范”

Ecological Security Evaluation and Prevention Measures in Typical Karst Region: An Example of Shiqian County in Guizhou Province

  • Received:2011-11-09 Revised:2011-12-16 Online:2012-04-15 Published:2012-04-15

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摘要：

生态安全评价研究过程中需要处理大量的地理空间信息和社会经济数据，借助GIS建立图形、属性数据库，并以专题图展示研究区域的生态安全分布格局。在调查属于乌江水系区域内石阡县生态环境的基础上，确定“P—S—R”框架模型，采用层次分析法(AHP)计算各指标权重，并对生态安全状况的指标进行量化，将石阡县生态安全分为安全区、较安全区、较不安全区、不安全区4个级别，并对各个级别区域做出生态安全评价和提出生态安全保障措施建议。

关键词: 脱毒种薯, 脱毒种薯, 表观遗传变异, 块茎产量品质

Abstract:

A mountain of geo-spatial information and social economic data to be processed and analyzed in the process of evaluation of ecological security. And it demonstrated the pattern of ecological security with the help of established database of graphics and attributed data. In addition, it confirmed the ‘P-S-R’ frame model and quantified the indices of the ecological security, which based on the mastering a certain of ecological materials about Shiqian’s environment. What’s more, it calculated the indices weight by adopting the method of fuzzy analytic hierarchy process, then, the ecological security of Shiqian County was divided into 4 levels, they were the safety area, relatively safe area, less safe area and unsafe area. Finally, it will be given the elevation of 4 classes and some ecological security measures for the local government.