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    城市开敞空间热环境调控规划方法研究——以广东南海为例

    关键词:风景园林;开敞空间;城市热环境;生态冷源规划;通风廊道规划;广东南海

    Key words:landscape architecture; open space; urban thermal environment; ecological cold air source planning; ventilation corridor planning; Nanhai, Guangdong Province

    摘要:对开敞空间热环境调控原理进行研究,认为开敞空间对热环境的影响可归纳为冷效应和通风效应2个方面。其中,冷效应包括降低城市热岛、冷溢出效应及切割城市热场;通风效应包括作为风源、输送凉风。构建以开敞空间为基础的城市热环境调控规划体系,研究生态冷源控制区、城市热环境控制区、通风廊道控制区的规划原则与方法。以“佛山市南海区城市开敞空间专项规划”为例,规划热环境重点控制区350.44km2,热环境一般控制区313.14km2,生态冷源控制区411.87km2,以及10条通风廊道。

    Abstract:The paper considers that the effect of open space on urban thermal environment can be summarized into two aspects: cooling effect and ventilation effect, by studying the theory of open space to improve the thermal environment. The cooling effect includes reducing the urban heat island, cold spillover effect, cutting the urban thermal field; the ventilation effect includes being cold air source and conveying the cool breeze. Then, the paper puts forward the planning system of open space to improve the thermal environment, and discusses the planning principles and methods of ecological cold air source district, urban thermal environment control district and ventilation corridor district. In the case of open space planning in Nanhai District, the key area of thermal environment is about 350.44km2, the normal area is about 313.14km2, the area of ecological cold air source is about 411.87km2, and there are 10 the ventilation corridors to be planned.

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