城市扩张背景下城市群环境问题的区域性特征分析

Abstract

PDF HTML阅读 XML下载 导出引用 引用提醒 城市扩张背景下城市群环境问题的区域性特征分析 DOI: 10.5846/stxb201705250968 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金（41571148）；福建省自然科学基金（2014J01161） Regional characteristics analysis of environmental problems in urban agglomerations undergoing urban expansion Author: Affiliation: Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:作为区域空间组织的重要形式，城市群已经成为促进城市化快速发展的重要地区，同时也逐渐成为生态环境问题高度集中的地区。采用夜晚灯光影像在分析京津冀、长江三角洲和珠江三角洲城市群空间扩张进程的基础上，从空气质量、工业固体废物处置利用情况以及植被覆盖度3个方面对三大城市群环境问题的区域性特征及其敏感区进行分析。结果表明：三大城市群空间扩张进程不断加快，并逐渐形成城市用地连绵区，长江三角洲城市群城市用地连绵区范围最大，珠江三角洲城市群城市用地连绵区范围高于京津冀城市群；从城市群层面看，三大城市群在空气质量、工业固体废物综合利用率以及植被覆盖度演变方面已呈区域性特征，城市化水平与工业固体废物综合利用率呈正相关，与城市群植被覆盖度呈负相关；从城市层面来看，空间扩张较快的宁波市和北京市为长江三角洲和京津冀城市群在空气质量、工业固体废物综合利用率以及植被覆盖度方面的敏感区，中山市为珠江三角洲在工业固体废物综合利用率以及植被覆盖度方面的敏感区。环境问题的区域特征以及环境敏感区分析对环境治理工作具有一定的指导作用，对区域的可持续发展具有一定的现实意义。 Abstract:As an important spatial form of regional spatial organizations, urban agglomeration has become an important aspect of rapid urbanization because it gradually leads to a highly concentrated region with large eco-environmental problems. Night time light image was adopted to analyze spatial expansion in the Beijing-Tianjin-Hebei, Yangtze River Delta, and Zhujiang River Delta urban agglomerations. We also analyzed the regional characteristics and areas that are sensitive to environmental problems, including air quality, comprehensive use of industrial solid wastes, and vegetation coverage. Spatial expansion of the three urban agglomerations is increasing and interlocking regions of urban land have gradually formed. The interlocking regions were largest in the Yangtze River Delta and smallest in Beijing-Tianjin-Hebei area. The regional characteristics for the three urban agglomerations are presented in terms of air quality, comprehensive use of industrial solid wastes, and vegetation coverage. The air quality in the Zhujiang River Delta cities was highest and lowest in the cities that make up Beijing-Tianjin-Hebei. The comprehensive use of industrial solid waste in the Yangtze River Delta cities was highest, but was lowest in in Beijing-Tianjin-Hebei. Vegetation degradation in the Yangtze River Delta was most serious, but was least serious in Beijing-Tianjin-Hebei. The air quality and comprehensive use of industrial solid waste regional characteristics were correlated with spatial expansion in the three urban agglomerations. There was a positive correlation between urbanization level and the comprehensive use of industrial solid waste as well as between urbanization level and vegetation coverage. Areas that are sensitive to poor air quality, the comprehensive use of industrial solid waste, and vegetation coverage were identified, and the sensitive areas were correlated with spatial expansion characteristics in the three urban agglomerations. Spatial expansion was faster in Ningbo and Beijing (cities in the Yangtze River Delta and Beijing-Tianjin-Hebei, respectively), which were sensitive to poor air quality, industrial solid waste, and vegetation coverage. Zhongshan in the Zhujiang River Delta was sensitive to the comprehensive use of industrial solid waste and vegetation coverage. The analysis of regional characteristics and environmentally sensitive areas is important if environmental protection and sustainable development is to improve. 参考文献 相似文献 引证文献