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    北京市中心城区社区公园生态系统文化服务评价与优化策略

    Evaluation and optimization strategies of cultural ecosystem services in community parks in central urban area of Beijing

    • 摘要:
      目的 社区公园是城市公园绿地的重要组成部分,也是城市中与居民最为亲近的自然空间。随着人们对城市绿地需求的日益多样化,社区公园承担着越来越多的非物质服务功能。在城市中心城区尺度下,探究社区公园所提供的生态系统文化服务(CES),构建相应的评价指标体系,并提出优化策略,以推动生态自然的城市人居环境建设。
      方法 以北京市中心城区作为研究对象,构建社区公园生态系统文化服务评价指标体系,采集公众对于10个社区公园4大类、8小类共19项指标的感知评价数据。采用重要性—绩效分析法(IPA)构建评价模型,以重要性评价结果对应CES需求作为横轴,满意度评价结果对应CES供给作为纵轴,以每类CES的重要性和满意度评价结果作为平均值划分4象限。根据各指标因子的IPA分析结果,建立各类CES的IPA分析模型,分析北京市中心城区社区公园CES的供需特征。
      结果 从两个层面展开分析:(1)在整体层面,19项指标中满意度评价结果前3的指标因子依次为植被覆盖率(满意度均值为4.21)、自然资源维护水平(满意度均值为4.07)、植物群落层次感(满意度均值为4.04)。重要性评价结果前3的指标因子依次为场地安全性(重要性均值为4.54)、环境卫生维护水平(重要性均值为4.49)、标识解说系统完善性(重要性均值为4.41)。(2)在分类层面,对游憩与旅游价值方面、美学与审美价值方面、文化认同价值方面和自然教育价值方面4类CES进行分析,指出各指标因子的发展方向。
      结论 基于对10个社区公园的CES评价结果,从环境维护与场地优化,服务水平与设施完善,主题特征与区域认同强化3个方面,针对不同类型的社区公园提出具体优化策略,以期为北京市中心城区其他相似类型的社区公园CES优化提升提供参考。

       

      Abstract:
      Objective Community parks are an important part of urban parks and green spaces, and they are also the natural spaces closest to residents in the city. As people’s demands for urban green space become more diverse, community parks undertake more and more non-material service functions. To explore the cultural ecosystem services (CES) provided by community parks at the scale of central urban area of the city, building an evaluation index system, and proposing targeted optimization strategies will help promote the construction of an ecological and natural urban living environment.
      Method The research took Beijing’s central district as the research object, constructed a community park CES evaluation index system, and collected public perception evaluation data for 10 community parks in 4 categories and 8 sub-categories, a total of 19 indicators. The importance-performance analysis method (IPA analysis method) was used to construct an evaluation model, with the importance evaluation results corresponding to CES demand as the horizontal axis, the satisfaction evaluation results corresponding to CES supply as the vertical axis, and the importance and satisfaction evaluation of each type of CES. The results were divided into 4 quadrants as the average value. According to IPA analysis results of each index factor, the IPA analysis models of various CES were established to analyze the current supply and demand characteristics of CES in community parks in the central urban area of Beijing.
      Result The evaluation results were analyzed from two levels: (1) at the overall level, among 19 indicators, the top three index factors of performance evaluation results were: vegetation coverage (mean value of satisfaction was 4.21), the level of natural resource maintenance (mean value of satisfaction was 4.07) , hierarchy of plants (mean value of satisfaction was 4.04). The top three index factors of importance evaluation results were: site security (mean importance value was 4.54), level of environmental hygiene maintenance (mean importance value was 4.49), the completeness of logo interpretation system (mean importance value was 4.41. (2) At the classification level, we analyzed the evaluation results of four types of CES in terms of recreation and tourism value, aesthetics and aesthetic value, cultural identity value and natural education value, and pointed out the development direction of each index factor.
      Conclusion Based on CES evaluation results of 10 community parks in this study, for different types of community parks, specific optimization strategies are proposed from three aspects: adherence to environmental maintenance and site construction, enhancement of service levels and facility construction, and enhancement of theme characteristics and regional identity. It is expected to provide a reference for the optimization and improvement of CES in other similar types of community parks in the central urban area of Beijing.

       

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