基于ETM+的苏锡常地区城市生活质量定量评价

Application of ETM+ data for quality of life quantitative assessment in Suzhou-Wuxi-Changzhou area

利用Landsat ETM+遥感数据和统计调查数据来综合评价苏锡常地区城市生活质量的空间分布状况.ETM+遥感数据用来提取城市建设用地比例,NDVI植被指数和地表亮温等物理环境指数;统计调查数据用来提取人口密度、人均收入和高等教育人口比例等社会经济指数.并利用相关矩阵说明了各个指标之间的关系,运用GIS中的空间叠加分析,对物理环境指数和社会经济指数进行叠加运算,综合反映苏锡常地区城市生活质量.结果表明:2001年,苏锡常地区生活质量较高城市为太仓市、昆山市和苏州市区,而常州市区和武进市生活质量相对较低.

Landsat ETM＋ data was used in conjunction with census data for evaluating space distribution state of urban quality of life in Suzhou-Wuxi-Changzhou area. ETM＇＋ image data was used to extract the biophysical environment variables of the percentage of urban build-up area, NDVI and radiation temperature; Census data was used to extract socioeconomic variables of population density, per capital income and the proportion of higher education. Then the relationship of six variables was explained by using the correlation matrix of various. A geographic information system overlay was found to integrate biophysical environment and socioeconomic data together to give a comprehensive assessment of quality of life in Suzhou-Wuxi-Changzhou area. The results were shown that the city of higher quality of life were Taicang, Kunshan and urban area of Suzhou, and the lower were urban area of Changzhou and Jiangyin in 2001.