河西地区县域城镇化发展与生态环境空间协调度研究

Spatial coordination degree between urbanization and eco-environment in Hexi area

运用GIS技术,结合城镇化与生态环境协调发展的若干关联指标,运用主成份分析法,计算了河西地区2015年以来的城镇化水平指数和生态环境质量指数,并系统探讨了二者空间协调度发展变化,确定研究区县域城镇发展与生态环境协调程度的等级并对协调发展模式进行了分析.结果表明：河西地区的城镇化综合水平呈现轴心县市高、周围县市低的特点,生态环境综合水平呈现出明显的南高北低的态势.河西地区20个县市的城镇化与生态环境协调度的变化在0.28~0.92之间.结合协调度的大小,将河西地区20个县市划分为很协调、较协调、一般协调、不协调和很不协调等5种地域类型;利用二者协调综合指数的比值,将河西地区20个县市城镇化与生态环境的协调划分为同步协调、城镇化超前和生态主导3种类型.结合河西地区城镇化与生态环境协调类型和协调模式,将20个县市城镇化与生态环境之间的协调分为11种组合形式.最后,针对河西地区各县市的特点,提出城镇化与生态环境协调发展的对策和建议.

This study used GIS technology, combined with the urbanization and the coordination in the several related indexes by using principal component to calculate of hexi area urbanization level index and the ecological environment quality index in 2015, and analyzed systematically the space between the coordination of hexi area, and then to determine the urbanization and the ecological environment of the coordinate level and to coordinate the development patterns are analyzed. The results showed that the comprehensive urbanization level of hexi area on high, axis counties around the characteristics of low counties, ecological environment comprehensive level obviously presented meteorological low trend. The spatial coordination degree between urbanization and eco - environment in Hexi region is in 0.28 - 0.92. According to the size of coordinate degree in hexi area, 20 counties is divided into the best coordination, good coordination, common coordination, no - coordination and the worst coordination. Use of the urbanization and the ecological environment comprehensive index of the ratio of the 20 counties, the urbanization and the ecological environment of the coordination is divided into synchronous harmonious type,urbanization advanced type, and type of ecological leading etc. Combined with the urbanization and the ecological environment coordinatiin type , the urbanization and the coordination between ecological environment is divided into 11 forms. At last, according to the characteristics between urbanization and ecological environment is for promoting the coordinated development between provide on the basis of the results above. of the hexi area city and county, the different coordination formulated. Besides, some specific control and guide measure urbanization and ecological environment in hexi corridor are also