基于POI混合度的城市公园体力活动类型多样性研究——以深圳市福田区为例

A Study on Diversity of Physical Activities in Urban Parks Based on POI Mixed-use:A Case Study of Futian District,Shenzhen

城市公园作为体力活动的理想场所备受关注,其周边建成环境对体力活动的促成也有重要影响,却未受到足够的重视。文章以深圳市福田区综合公园与社区公园为例,从城市视角探讨公园周边建成环境POI混合度是否影响公园体力活动类型多样性(DPAT)。基于多源数据和Hill Numbers指数分别量化了公园周边POI混合度与各类型公园的DPAT,分析两者的相关性及不同类型公园对POI类型的敏感度,明晰公园周边POI混合度对公园DPAT的影响机制,进而提出构建体力活动的整体支持环境体系、基于“城市双修”的支持环境修补、因地制宜强化区位土地功能组合的规划策略,旨在通过优化公园周边土地利用混合度促进市民体力活动,落实“健康中国”国策。

Urban parks are ideal places for residents'physical activities.The built environment around it also has an important impact on the promotion of physical activity,but it has not received enough attention.Taking the comprehensive and community parks in Futian District,Shenzhen as an example,the study explores if the POI-mixed degree in the built environment around parks affects diverse types of physical activity(DPAT)in the parks.Based on multi-source data and Hill Number index,the paper separately quantifies the degree of POI-mixed degree around parks and the DPAT of each type of parks,and then analyzes the correlation between the two and the sensitivity of different types of parks to POI type.It clarifies the influence mechanism of the POI-mixed degree around the park on the park's DPAT.Furthermore,it puts forward the planning strategy of constructing an overall supporting environment system for physical activities,repairing supporting environment,and strengthening the combination of location and land uses according to local conditions.It aims to promote the physical activities by optimizing mixed land use around the park and implement the national policy of"Healthy China".