基于GIS的蒲江县生态环境综合评价研究
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摘要
针对龙门山区域生态环境受到了"5·12"汶川大地震重创的现实问题,选取蒲江县为例,构建目标层、制约层、要素层的三级评价体系,建立了生态环境综合评价模型,并运用层次分析法及GIS技术开展生态环境综合评价。结果表明:蒲江县生态环境良好率(第Ⅲ分类区以上)达到了87.6%,总体生态环境状况良好,同时提出了生态保护对策。
It is a real problem that the ecological environment had been everely damaged by the 5·12 Wenchuan earthquake for the Longmen region.The comprehensive evaluation of the ecological environment has been completed through using of the analytic hierarchy process and GIS technology by constructing the target layer,constrained layer,feature layer and the establishment of a comprehensive evaluation model of the ecological environment in Pujian County.The results showed that percentage of ecological environment more than third grade in Pujian County reached to 87.6%,and the overall ecological environment in this county was in good condition.Meanwhile,ecological protection countermeasures were proposed in this paper.
It is a real problem that the ecological environment had been everely damaged by the 5·12 Wenchuan earthquake for the Longmen region.The comprehensive evaluation of the ecological environment has been completed through using of the analytic hierarchy process and GIS technology by constructing the target layer,constrained layer,feature layer and the establishment of a comprehensive evaluation model of the ecological environment in Pujian County.The results showed that percentage of ecological environment more than third grade in Pujian County reached to 87.6%,and the overall ecological environment in this county was in good condition.Meanwhile,ecological protection countermeasures were proposed in this paper.
引文
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[2]Trevisan M,Padovani L,Capri E.Nonpoint-sourceagheultural hazard index:a case study of the province ofCremona[J].Environmental Management,2000,26(5):577-584.
[3]Matthew A L,Jendrdtte G D,Wu J G,et al.The urbanfunnel model and the spatially heterogeneous ecologicalfootprint[J].Ecosystems,2001,4(8):782-796.
[4]Weng Qihao.Modeling urban growth effects on surfacerunoff with the integration of Remote Sensing and GIS[J].Environmental Management,2001,28(6):737-748.
[5]Gokhale A A.Environmental initiative prioritization witha delphi approach:a case study[J].Environmental Man-agement,2001,28(2):187-193.
[6]申文明,张建辉,王文杰,等.基于RS和GIS的三峡库区生态环境综合评价[J].长江流域资源与环境,2004,13(2):159-162.
[7]李洪义,史舟,郭亚东,等.基于遥感与GIS技术的福建省生态环境质量评价[J].遥感技术与应用,2006,21(1):49-54.
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[9]杜自强,王建,陈正华,等.基于RS和GIS的区域土地利用动态变化及演变趋势分析[J].干旱区资源与环境,2007,21(1):115-119.
[10]龚建周,夏北成.基于大气辐射校正的广州市植被覆盖度遥感估算[J].应用生态学报,2007,18(3):575-580.
[11]刘建,刘小琴,何政伟.基于TM影像的城市热岛效应研究[J].水土保持研究,2010,17(5):172-175.
[12]彭补拙.用动态的观点进行环境综合质量评价[J].中国环境科学,1996,16(l):16-19.
[13]谷雨,刘昕,邓红兵.基于层次分析法的重庆市城乡结合部生态系统健康评价[J].中国环境科学,2010,30(11):1573-1578.
[14]王默玉,魏佳,申晓留.基于AHP的北京市能源安全研究与分析[J].应用能源技术,2010(9):7-11.
[15]张东辉,赵英俊,薛东剑,等.3S技术在单体滑坡风险评估中的应用[J].地球与环境,2011,39(1):69-75.
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