重庆大学学报2016，Vol.39Issue(2)：44-50,7.DOI:10.11835/j.issn.1000-582X.2016.02.006
高密度城区公园降温效应与模拟预测研究--以天津中心城区为例
Study on cooling effect of high density urban park and its simulations & predictions---Taking Tianj in center city as an example
摘要
Abstract
Rapid urbanization results in the increase of population density of large cities.And urban heat island effect becomes severe.Park green spaces,as an important component of the city ecosystem,play a significant part in alleviating heat island.We choosed 8 large parks of Tianjin center city as empirical objects,used single window algorithm and analyzed their cooling effect based on Landsat8 ETM + image in 2013.The results show that the coverage areas of the parks and vegetation coverage ratio are the most important factors influencing the urban heat island effect,and also water ratio has a great influence on the surface temperature.The maximum cooling intensity and cooling distance of the 8 parks differ largely with each other.The cooling intensity temperature difference is about 2.72 ℃ and the cooling distance is 195 m.Parks with larger area has more obvious cooling effect,especially when the water ratio is higher than 30% or the vegetation coverage higher than level 10.A model of Parks’cooling effect is deducted based on the conclusion of the study.The results of the research provides effective technical support for the planning of park green space in Tianjin center city and similar high density urban areas.关键词
公园/降温效应/地表温度/模拟预测/天津市Key words
parks/cooling effect/surface temperature/simulation/Tianjin city分类
天文与地球科学引用本文复制引用
贾琦,运迎霞,尹泽凯..高密度城区公园降温效应与模拟预测研究--以天津中心城区为例[J].重庆大学学报,2016,39(2):44-50,7.基金项目
国家自然科学基金资助项目（51278330）；国家留学基金委项目“健康城镇化”（留金欧［2013］6004号）。Supported by National Natural Science Foundation of China（51278330）and Sustainable Urbanization Model of China of China Schorlarship Council （CSC Europe No．［2013］64）． （）
