北京城市绿化与热岛效应的关系研究

采用遥感卫星影像数据结合实地同步测定的方法,对北京规划市区地面热场状况进行研究.对遥感影像进行信息提取和分类,建立北京市热岛分布图和城市绿化现状图,分析了城市热岛的分布和强度特征;进行不同类型下垫面热特性的系统测定,分析了热岛效应与城市下垫面绿化分量的关系研究了热岛的发生规律、影响因素和缓解热岛的措施.

Research on the Relationship between Urban Greening and the Effect of Urban Heat Island

The status quo of the ground thermal field in the planned Beijing city proper has been systematically researched through the method of remote sensing measuring and on-spot measuring. The status quo map of urban greening and heat island distribution of Beijing city have been established through abstracting and classifying the information from remote sensing image. The distributive character and intensive rank of urban heat island have been analyzed. The heat characteristic of different ground surface materials has been systematically measured. The relationship between the green space percentage of different ground surface materials and the effect of urban heat island has been analyzed. Therefore the occurring rules, affecting factors of heat island and the measures for attenuating this effect have been put forward.