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期刊杂志

    北京城市公园绿地热舒适度空间格局特征研究

    关键词:风景园林; 热舒适度;植被微环境效益;北京奥林匹克森林公园;城市绿地;空间格局

    Key words:landscape architecture; thermal comfort; vegetation micro-environmental benefit; Beijing Olympic Forest Park; urban green space; spatial pattern

    摘要:植物是城市绿地降低热岛效应强度、改善环境质量及提升微环境舒适度的基本功能单位,而热舒适度是微环境舒适度的重要参数之一。以北京奥林匹克森林公园绿地为研究对象,通过在其区域内设置实测样点和空间插值样点,采用空间自相关(Moran’s I指数)、LISA聚类分析方法以及人体舒适度评价方法阐释城市绿地热舒适度改善功能的空间格局特征。结果表明:热舒适度的空间关联性在局地内表现显著,但在受到多因素影响的整个绿地内不显著;热舒适度标准值与群落郁闭度和叶面积指数均呈现正相关关系。研究为合理的功能型城市绿地营建提供科学依据。

    Abstract:Plants are the basic functional unit in reducing heat island effect intensity by urban green space, improving urban environmental quality and enhancing the micro-environment comfort, and the thermal comfort is one of the important parameters of the micro-environment comfort. The task studied the spatial pattern characteristics of the green in improving thermal comfort(TC) on Beijing Olympic Forest Park, by setting up actual measurements sample points and spatial interpolation ones in this park, and through the methods of spatial autocorrelation (Moran's I) and LISA cluster analysis, and the evaluation of human comfort. The research shows that the spatial correlation between TC and plants is significant in local area and not throughout in the green because of multi-factor-influence; and positive correlation between the standard values of TC and the canopy density, leaf area index. Based on the above results, it offers scientific basis for the planning of urban greens paces, and healthy urban living environment.

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