当前,受城镇化和后工业化双重影响,工业用地和城镇用地逐步走向融合,导致产城用地矛盾日益尖锐,如何确保工业用地合理布局和有效供给,推动产城安全融合,已成为众多城市发展的瓶颈。作为京津冀一体化重点战略区域,京津廊道内工业用地的合理布局和有效供给已成为促进区域产业有序承接和安全生产的关键环节。本文以工业用地合理布局和有效供给为出发点,提出"红线控制初筛-单因素评价-空间综合评价"的空间安全诊断思路,构建了工业用地空间安全诊断评价指标体系,运用GIS技术和层次模糊物元模型等方法,对北辰区进行工业用地空间安全评价和等级划分。结果表明:2015年北辰区现状工业用地中有59.72%处于一般安全等级,11.59%处于高度安全区,低度安全区与不安全区比重达到28.69%。就单个指标看,风向干扰区、交通便捷度等区位安全条件和工业集聚度、高新科技辐射度等生产安全条件对评价结果影响较大。在确保区域生态安全基础上,结合工业用地合理规模和产业特色进行工业用地内部集约和空间布局优化,提出严格生态用地管控制度、工业园区向高安全区集聚以及明确产业类型的安全布局趋势等建议,以推动工业用地与区域社会、经济和环境协调发展,促进区域产城融合目标的实现。
Affected by urbanization and post-industrialization,industrial land-use and urban landuse are moving towards integration and the contradictions between land and people are becoming increasingly acute. How to ensure a reasonable layout and effective supply and improve the integration of land-use remain important questions for the field. Beijing-Tianjin-Hebei is a critical strategic area of integration and the reasonable layout and effective supply of industrial land-use in the Beijing-Tianjin corridor has become a key link to promote the ordered undertaking and safe production of regional industries. Based on the starting point of a reasonable layout and effective supply of industrial land,we developed a space security diagnosis method:the red line control initial screen-single factor evaluation-spatial comprehensive evaluation. Using GIS and hierarchical fuzzy matter-element modeling,we conducted space layout security appraisal and grade division for industrial land-use in Beichen District. We found that there are 59.72% current industrial land-use of Beichen District is at a general security level in 2015, 11.59% of land-use has a high level of security,the proportion of low security zone and unsafe zone reached 28.69%. In terms of a single indicator,location security conditions such as wind interference area,and traffic convenience,as well as production security conditions(e.g. industrial agglomeration degree and high-tech radiation)have a great influence on evaluation results. On the basis of ensuring regional ecological security,combining with a reasonable scale of industrial land-use and industrial characteristics,the internal intensivism and spatial layout optimization of industrial land-use are realized. This study offers some valuable proposals:strictly control ecological land-use,aggregate in high-security areas and identify industry type. These measures will help achieve the coordinated development of industrial land-use among regional social,economic,environmental and cityindustry integration.