Research on the Optimization and Improvement of the Habitat Network of High-density Built Environment Based on the Biophilic Urbanism:A Case Study of the Central Urban Area of Chengdu
Based on the connotation and development trend of biophilic urbanism,combined with the occurrence and operation mechanism of ecological processes in the high-density built environment,and clarifying the constraints and essential supporting conditions,a technical framework for defining the scope of high-density built environment,assessing and identifying habitat units,simulating the habitat networks,and comparative assessment by scenario iteration is created.The downtown of Chengdu,the Park City demonstration area,is taken as the research object,and the scope and characteristics of the high-density built environment and the constraint conditions and ecological process characteristics of its internal ecological process are analyzed.From the perspective of human perception,the biological features and supporting requirements are explored,and then the technical path to evaluate the habitat network pattern is built.By clarifying the ecological resistance characteristics and the core habitat spaces,the technology module of Linkage Mapper based on the electric current theory is used to identify the habitat networks supporting the biological characteristics.Moreover,the pattern structure,habitat units,ecological corridors,ecological pinch points,and ecological barrier points are evaluated to obtain comparative conclusions by supplying habitat patches while combining the scenario iteration.The optimization and promotion strategies such as anchoring the ecological skeleton,extending the potential ecological context and creating multi-biological perception spaces are refined.It is expected to provide guidance and reference for constructing the Chinese Park City with the characteristics of a living community to achieve a biophilic city.