城市公园景观格局对热岛效应的影响研究进展

Research Progress on the Impact of Urban Park Landscape Pattern Differences on Heat Island Effect

城市绿地是缓解城市热岛效应的重要方式之一,以往研究多聚焦于城市绿地对周边热环境的影响,较少关注城市公园内外部景观格局差异对于城市热岛效应的影响。对国内外相关文献进行文献调研,通过整合分析,从研究趋势、研究手段、研究成果三方面进行归纳,探讨了公园内部景观斑块,公园总体形态特征,不同研究区、研究方法、研究指标对于结果产生的可能性影响。分析发现,公园内部景观类型所占比例与公园总体形态特征对热岛效应缓解程度和辐射范围不同;其次研究区所处位置、不同研究方法和选取不同评价指标也会对研究结果产生影响。已有的研究对于城市公园和热岛效应相关性关注较少,并且不同研究区在温度带和干湿区域方面的差异导致研究结果呈现多样性,仍需对于不同条件下的城市公园开展本土研究,并分析其对热岛效应的缓解程度,为未来城市公园的规划布局,建设绿色宜居的城市提供科学依据。

Urban green space is one of the important ways to alleviate urban heat island effect.Previous studies mostly focused on the impact of urban green space on the surrounding thermal environment,and paid less attention to the impact of the difference of internal and external landscape pattern of urban parks on urban heat island effect.This paper conducts literature research on relevant literature at home and abroad.Through integrated analysis,this paper summarizes the research trend,research means and research results,and discusses the possible impact of the park’s internal landscape patches,the overall morphological characteristics of the park,and different research areas,research methods and research indicators on the results.It is found that the proportion of landscape types in the park is different from the overall morphological characteristics of the park on the mitigation degree and radiation range of heat island effect;Secondly,the location of the study area,different research methods and the selection of different evaluation indicators will also affect the research results.Existing studies pay less attention to the correlation between urban parks and heat island effect,and the differences in temperature zones and dry and wet areas in different research areas lead to the diversity of research results.It is still necessary to carry out local research on Urban Parks under different conditions and analyze their mitigation degree of heat island effect,so as to provide reference for the planning and layout of urban parks in the future,provide scientific basis for building a green and livable city.