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以2005年的Landsat TM/ETM+影像数据和常规统计数据为研究对象,采用加权求和的生态环境综合评价方法建立了相应的环境综合评价模型,分析了生态环境质量的空间分布特点,结果表明:生态环境综合质量指数集中在中间区段的5～7级,其面积约占总面积的99.91%;总体上呈现"中间大、两头小"纺锤形的分布规律。 更多还原

【Abstract】 Based on Landsat TM/ETM+ image and statistic data in 2005,this paper constructed eco-environment evaluation model with the weighting sum of the eco-environment comprehensive evaluation method,and analyzed the characteristic of spatial distribution of eco-environment quality.The results showed that the area of eco-environment zone with middle comprehensive evaluation index(5~7 grade) was the largest,accounting for about 99.91% of the total area,and appeared the spindly distribution of "big at mid... 更多还原