| 摘要 |
The construction of "park cities" requires a systematic thinking to coordinate the networked development of park system and break through the limitation of emphasizing scale and grade and neglecting dynamic correlation in traditional planning. Taking Haidian District of Beijing as an example, the social network analysis method is introduced to construct the network model of park green spaces. Through indicators such as clustering coefficient, network density and node centrality, the characteristics of its spatial structure and hierarchical relationship are analyzed. It is found that the network integrity presents the characteristics of "highly local concentration and global fragmentation", fragmented park green space network and missing spatial connection, isolated clusters and collaborative failure, as well as the spatial mismatch between population and resource supply and demand. Hierarchical issues include "structural imbalance and functional disorder", disorder between network hierarchy and park level, misalignment of functional hierarchy leading to weakened network risk resistance capacity, and a relatively dense distribution of core nodes, etc. In response to the above problems, a multi-level spatial intervention strategy should be adopted to solve the overall problem of the network. Meanwhile, it is needed to clarify the positioning of a park itself and improve the hierarchical system, so as to construct a multi-level and multi-scale park green space network, contribute to the construction of a park city, and provide residents with more diverse activity venues. |
