夏冬季城市公园与城市热岛/冷岛空间关系研究  

Spatial Relations between City Parks and Urban Heat/Cold Islands in Summer and Winter Seasons

作　　者：朱伶俐 丁凤[1,2,3] 杨琳 侯浩然 叶金玉 ZHU Lingli;DING Feng;YANG Lin;HOU Haoran;YE Jinyu(Institute of Geography,Fujian Normal University,Fuzhou 35007,China;School of Geographical Sciences,Fujian Normal University,Fuzhou 350007,China;Fujian Provincial Engineering Research Center for Monitoring and Assessing Terrestrial Disasters,Fujian Normal University,Fuzhou 35007,China)

机构地区：[1]福建师范大学地理研究所,福建福州350007 [2]福建师范大学地理科学学院,福建福州350007 [3]福建省陆地灾害监测评估工程技术研究中心,福建福州350007

出　　处：《福建师范大学学报（自然科学版）》2020年第1期87-95,共9页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省自然科学基金资助项目(2017J01463);福建省科技厅公益类科研院所专项项目(2018R10344)

摘　　要：以福州市主城区为研究区,以4景夏、冬季Landsat 8影像和基于网络爬取的福州城市公园POI数据为主要数据源,采用单窗算法反演福州市主城区的地表温度,以均值-标准差法确定城市热岛和冷岛的边界,并基于缓冲区分析、相关性分析等技术手段探究福州市主城区夏、冬季公园与城市热岛/冷岛之间的关系.研究结果表明:(1)夏季和冬季研究区内城市热岛/冷岛的空间分布特征大致相似;(2)公园的面积和距离与城市热岛/冷岛的分布有较强的相关性,当公园缓冲区距离为500 m时,公园的面积和距离与地温的相关性最强;(3)随着公园缓冲区距离的增加,城市冷岛的面积逐渐上升,当公园缓冲区距离达到500 m时,面积变化趋于平缓;而城市热岛的面积逐渐上升且速率较大.本研究可为缓解城市热岛效应,合理规划公园数量提供科学决策参考.City parks have been widely recognized as one important means of mitigating urban heat island effects,and there are time-scale differences in the cooling effects of parks.In order to analyze the relationship between city parks and the Surface Urban Heat Island(SUHI) and the Surface Urban Heat Sink Island(SUHS) in different seasons,Landsat 8 remote sensing image data,as the main data sources,were utilized to inverse the land surface temperature(LST) by using the mono-window algorithm of the main districts of Fuzhou of Fujian Province,and the mean-standard deviation method has been used to extract the region of the SUHI/SUHS.In addition,based on the POI data of city parks in Fuzhou,the spatial analysis methods such as buffer analysis and correlation analysis were used to explore the relationship between city parks and the SUHI/SUHS in summer and winter.The results show that(1) the spatial distribution of the SUHI/SUHS is roughly similar in summer and winter;(2) the area and distance of parks have a strong correlation with the distribution of the SUHI/SUHS.When the park buffer distance is 500 m,the correlation between park area and LST is the strongest;(3) as the distance from the park increases,the area of the SUHS in the buffer zone gradually rises.When the park buffer distance is 500 m,the change of area tends to be gentle,while the area of the SUHI in the buffer zone gradually rises and the rate of increase is relatively large.On the whole,city parks have seasonal differences on the SUHI/SUHS,but the differences are not significant,and the effects of city parks on the SUHI/SUHS are also different.This study provides reference for mitigating the urban heat island effect and rationally planning the number of parks.

关 键 词：地表温度 城市热岛/冷岛 城市公园 缓冲区分析 福州市 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]