长三角地区生态城镇化空间格局及影响因素

生态城镇化作为新型城镇化的重要组成部分,是生态文明理念的具体实践。以长三角地区41个城市为研究区域,构建区域生态城镇化指标体系,测度2000—2018年生态城镇化的发展水平,探究生态城镇化指数的时空演化特征及影响因素的作用机制。结果表明：（1）长三角地区生态城镇化水平整体呈上升趋势,高值区逐渐在浙江集聚,低值区在江苏北部和安徽北部集中,各城市生态城镇化指数差距逐渐缩小,区域生态一体化程度不断提高。（2）长三角地区生态城镇化水平的空间自相关性逐渐增强,其空间演化具有较强的变动性、依赖性和整合性,变动性自西至东逐渐减弱,依赖性自西北至东南逐渐增强。（3）财政投入水平、城乡收入差距、工业发展水平、土地投资强度、人口密集程度和科技发展水平对长三角地区生态城镇化水平的影响依次降低,在众多因素的综合作用下,各城市生态城镇化水平逐渐趋同。加强区域生态一体化建设,提高区域生态城镇化水平,是建设美丽中国的有效途径,也是实现区域高质量发展的必然选择。

Spatial pattern and influencing factors of ecological urbanization in the Yangtze River Delta

As an important part of new urbanization, ecological urbanization is the concrete practice of ecological civilization concept. Taking 41 cities in the Yangtze River Delta as the research area, this paper constructed an index system of regional ecological urbanization, measured the development level of ecological urbanization from 2000 to 2018, and explored the spatiotemporal evolution characteristics of ecological urbanization and the mechanism of influencing factors. The results show that: (1) The overall level of ecological urbanization in the Yangtze River Delta region shows an upward trend, with high value areas gradually clustering in Zhejiang and low value areas concentrating in Northern Jiangsu and Northern Anhui. The gap of ecological urbanization index among cities is gradually narrowing, and the degree of regional ecological integration is continuously improving. (2) The spatial autocorrelation of ecological urbanization in the region gradually increases, and its spatial evolution is characterized by strong variability, dependence and integration. The spatial variability gradually weakens from west to east, and the dependence gradually increases from northwest to southeast. (3) The influence of financial investment level, income gap between urban and rural areas, industrial development level, land investment intensity, population density and scientific and technological development level on the level of ecological urbanization in this region decreases in turn. Under the comprehensive effect of many factors, the level of ecological urbanization in each city gradually converges. Under the combined effect of many factors, the level of ecological urbanization in each city gradually converges. Strengthening the construction of regional ecological integration and improving the level of regional ecological urbanization is an effective way to build a beautiful China and an inevitable choice to achieve regional high-quality development.