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基于网格空间数据的晋陕蒙接壤区生态环境综合评价 被引量:11

Synthetic assessment for eco-environment in contiguous area of Shanxi, Shaanxi and Nei menggu based on grid data
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摘要 晋陕蒙接壤区是典型的生态过渡带、生态脆弱带。文章在调查研究的基础上 ,选取了 1 3个评价指标 ,应用层次分析法确定其权重 ,并将各个因子分级标准化和定量赋值 ,再用加权求和法得到每个评价单元的环境质量综合评价指数。根据环境综合评价指数将环境质量分为较好 (≥ 8)、一般 (≥ 6~ <8)、较差 (≥ 4~ <6)、恶劣 (<4) 4级。结果表明 :晋陕蒙接壤区的环境质量大多处于较差等级 ,较好、一般、较差、恶劣等级的面积比例分别为 2 .2 % ,2 8% ,5 7.4%和1 2 .4% The contiguous area of Shanxi, and Nei menggu is a typical ecological transition zone and eco critical zone. With the survey and research of environmental data, the 13 indicators were selected. applying the analysis hierarchy program, these index's weight values were calclated. Then every index were classified and quantitative. Finally, the environmental assessment index of different units was calculated and environmental quality was divided into preferable (≥8),general (≥6~<8),bad (≥4~<6),worse (<4) four grades according to the index. The results as follow: The environmental quality in this area was mainly bad level, and environmental area with preferable, general, bad, worse quality amount to 2.2%,28%,57.4% and 12.4%
出处 《中国环境监测》 CAS CSCD 北大核心 2002年第1期11-14,共4页 Environmental Monitoring in China
基金 国家环境保护总局重大科研课题子专题
关键词 生态环境综合评价 层次分析法 网格数据 晋陕蒙接壤区 synthetic assessment for eco environment analysis hierarchy program grid data contiguous area of Shanxi, Shaanxi and Nei menggu
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