北京城市物质空间的演替轨迹与更新模式研究

Under the background of construction in New-style Urbanization and Resource-conserving society, renewal of urban material space is the main way to enhance the quality of urbanization and promote the construction of the ecological civilization in the capital of Beijing. The renewal mode and timing play an important role on rational use of natural resources and sustainable economic and social development. This project adopts the comprehensive recognition solution based on the building database, historical works, big data and fieldwork, to complete the delineation of urban material space and its database for the sampling zones within 5th ring road since reform and opening up; Following the urban development stage, quantitatively depict the characteristics of the material space and its regional diversities from the aspects of functional transformation, loss of buildings and spatial intensity; The renewal mode is extracted and evaluated according to above multi-dimension explanation and concise expression; Sum up the influence factors and forming mechanism of different renewal modes, so as to provide a basis for making optimal regulation policies and solutions of the renewal of urban material space.

在新型城镇化和资源节约型社会建设大背景下，城市物质空间更新是首都提升城镇化质量和推进生态文明建设的主要途径，其演替进程和更新模式对资源的合理利用及经济社会可持续发展将产生重要影响。本项目采用建筑物数据库、地理国情数据库、历史典籍、大数据与实地调研的综合识别方案，建立改革开放30余年来北京五环快速路以内各类主要功能区的典型区域的物质空间数据库；以城市发展阶段为时间脉络，重点从产业链更替、建筑资产拆损以及空间利用强度多维解读和综合认知物质空间演替的基本特征与区域分异；进而基于功能演替类型、拆损类型和紧凑度演化类型多维认知和系统凝练物质空间更新模式；归纳总结城市物质空间更新模式的影响因素与形成机理，为制订因地制宜的物质空间更新的优化调控政策和方案提供依据。

城市空间的演替进程和更新模式对资源的合理利用及经济社会可持续发展将产生重要影响。本项目以典型功能区和案例区为例，长时间序列解译城市空间更新的基本变化过程，凝练城市空间更新的演替规律与组织模式，进而对城市空间的多要素耦合与演进的格局、模式、空间组织和影响机制进行探讨。其次，构建用于阐释城市空间演化的耦合空间管控政策的全要素逻辑斯蒂模型，在定量分析城市空间演化影响因素与驱动机制的基础上，重点剖析空间管控政策在城市空间更新与空间增长管控方面的作用绩效，探究政策绩效差异、传导机制与城市空间演化形成机理。最后，为城市空间更新的优化调控和方案措施提供政策建议。