京津冀地区产城空间布局特征与人居风险评估

Study on spatial distribution of city-industry layout and assessment of residential safety in Beijing-Tianjin-Hebei region

京津冀地区人口集中,具有重要的人居安全保障功能,但区域城镇化发展水平空间差异显著,产城混杂和"散乱污"问题突出,城镇人居环境安全面临严峻挑战,空间布局有待进一步优化。通过地理信息系统对产城空间关系进行分析,同时将人居风险敏感性通过特征指标进行赋值并落到地理空间上,分析发现京津地区、京石一线和唐山等地是京津冀人居安全最敏感、厂房最密集区域,该区域除京津地区工业厂房郊区化趋势明显外,唐山和冀中南地区人口分布与城镇边界、工业厂房分布空间高度重叠,产城关系复杂。最后在人居安全与产城关系分析的基础上,对城镇空间格局优化和人居安全保障提出建议。

Beijing-Tianjin-Hebei region is a place with high density of population, which makes residential security an important precondition during new urbanization. However, there are significant spatial differences in the level of regional urbanization development. The problems of city-industry mixing and 'dispersed, poorly managed and polluted' enterprises are prominent. Urban human settlement environment security is facing severe challenges, and the spatial layout needs to be further optimized. The spatial relationship of city and industry was analyzed through the geographic information system, and at the same time, the sensitivity of human settlement risk with spatial information was assignment by characteristic index. The analysis found that the Beijing-Tianjin area, BeijingShijiazhuang line and Tangshan area were the most residential sensitive and most industrial intensive areas in Beijing-Tianjin-Hebei region. In addition to the obvious suburbanization trend of industrial plants in the BeijingTianjin region, the population distribution in Tangshan and middle and south area of Hebei Province was highly overlapped with urban boundaries and industrial plant distribution space, and the relationship between industry and city was complicated. Finally, based on the analysis of the relationship between human settlement security and cityindustry relationship, some suggestions for urban spatial pattern optimization and human settlement security were put forward.