中国主要省会城市化质量与生态环境压力空间分析

Spatial Analysis to Capital Cities Between Urranization Quality and Eco-Environment Pressure in China

为探究城市化质量与生态环境压力之间的内在关系,运用因子分析法构建城市化质量评价指标体系,对我国主要省会城市2011年城市化质量进行了测度.采用生态环境压力指数法定量评价了各省会城市生态环境压力,用系统相对发展度模型分析了城市化质量与生态环境压力之间的协调性,用灰色关联与相关性分析了相对发展度与城市化质量与生态环境压力两大系统各指标间的灰色关联性及相关性.结果显示:(1)我国城市化质量整体不高,存在明显的空间差异,表现为城市化质量东部高于中部高于西部,且综合得分高的城市发展并不全面.(2)城市化质量、生态环境压力空间分布差异明显,两者之间存在明显的相关关系,但不能片面的说是正相关还是负相关.(3)不同发展阶段城市的相对发展度水平不同,人口密度、经济扩张和推进程度以及环境污染程度是差异分布的关键因素.

To explore the internal relation between the quality of urbanization and the pressure of eco-environment,this paper,by constructing a quality evaluation index system of urbanization,using the factor analysis method to measure the urbanization quality of the major capital cities in China in 2011. At the same time,the ecoenvironment pressure index method is used to quantitatively evaluate the provinces city eco-environment pressure.We also evaluated the quality of urbanization and the pressure of eco-environment through correlation analysis,relative development degree analysis and grey associative analysis. The results show：（ 1） In our country,the quality of urbanization is not high as a whole. Obvious difference spatial distributions show that the eastern urbanization quality is higher than the middle and higher than the west. The high scores is not comprehensive development.（ 2） The quality of urbanization and eco-environment pressure has significant difference in spatial distribution. There is an obvious relationship between them,but cannot be one-sided say it was positive correlation or negative correlation.（ 3） Capital cities in different development stage has different relative degree level,the key led to this is population density,the extent of economic expansion and advancing and the degree of environmental pollution.