| 基于改进物元可拓模型的贵州草海湿地生态安全评价 |
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| 引用本文： | 易武英,;苏维词,;李安定.基于改进物元可拓模型的贵州草海湿地生态安全评价[J].贵州科学,2014(5):53-57. |
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| 作者姓名： | 易武英 ;苏维词 ;李安定 |
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| 作者单位： | [1]贵州省山地资源研究所,贵阳550001; [2]重庆师范大学地理与旅游学院,重庆400047 |
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| 基金项目： | 国家自然科学基金（41261038）; 国家十二五科技支撑计划（2011BAC09B01）; 贵州省重大科技专项（黔科合重大专项字﹝2012﹞6015号） |
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| 摘 要： | 以贵州草海湿地为研究对象,结合实地调查数据和社会经济统计数据,筛选出20个生态安全评价指标,根据PSR概念模型构建草海湿地生态安全评价指标体系,运用改进物元可拓模型,构造标准物元矩阵和节域物元矩阵,利用权变系数法确定指标权重,并计算研究区生态安全状况与生态安全等级的关联度,根据关联度大小评判研究区生态安全状况隶属级别,并将结果划分为安全、较安全、预警、脆弱、危险五个级别。
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| 关 键 词： | 生态安全评价 改进物元可拓模型 PSR模型 草海湿地 |
Evaluation of Ecological Security in Caohai Wetlands of Guizhou Based on the Improved Matter Elements and Extendable Set |
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| Institution: | YI Wu-ying, SU Wei-ci, LI An-ding ( 1Mountainous Resources Research Institute, Guizhou Academy of Sciences, Guiyang, Guizhou 550001, China ; 2 Geographic Science School of Chongqing Normal University, Chongqing, 400047, China) |
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| Abstract: | Combining the field data and socio-economic statistic data,Caohai wetlands ofGuizhou was taken as a research object to screen out 20 ecological security assessmentindexes and build Caohai wetland ecological security evaluation index system according to PSR conceptual model. The improved matter elements and extendable set were used toconstruct standard elements matrixand segment field matter elements matrix. Thecontingency coefficient method was adopted to determine indexes weight and calculate thecorrelation degree between ecological security status and ecological security grade in study area,which defined ecological security status grade and divided the results into 5 grades ofsecurity,relative security,warning,fragility and danger. |
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| Keywords: | ecological security assessment improved matter elements and extendable set PSR model Caohai wetlands |
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