基于GIS和RS的砒砂岩区生态环境质量综合评价

以Landsat TM影像数据、数字高程模型（DEM）、土壤类型数据、基础地图和统计资料为数据源，以GIS和RS为技术手段，采用主成分分析法评价模型，对砒砂岩区2000年和2010年的生态环境质量状况进行了综合评价。结果表明:砒砂岩区2000年和2010年的生态环境质量总体情况一般，但与2000年的生态环境质量情况相比，2010年有明显的改善。GIS和RS相结合的手段是进行大范围、条件复杂和数据难以获取地区生态环境质量综合评价的有效手段。

Comprehensive Assessment on Eco-environmental Quality of the Area of Sandston Based on RS and GIS

In this paper, Landsat TM image data, digital elevation model DEM, soil type data, base maps and statistical information were used as data source. By using GIS and RS techniques, this paper comprehensively evaluated the ecological environment quality of the sandstone area in 2000 and 2010 by using principal component analysis evaluation model. The results showed that eco-environmental quality of the sandstone area in 2000 and 2010 was ordinary, but it had been improved in 2010 compared with 2000. Assessing eco-environmental quality by using GIS and RS is an effective means for the area with large range, complicated condition, or difficulty to gain the necessary data.