湖南省娄底市城区热岛效应研究  

Study on the Urban Heat Island Effect in Loudi City,Hunan Province

作　　者：林道光[1] 谢叶恒 欧玲[1] 曹丹 LIN Daoguang;XIE Yeheng;OU Ling;CAO Dan(Hunan University of Humanities,Science and Technology,Loudi 417000,Hunan,China)

机构地区：[1]湖南人文科技学院,湖南娄底417000

出　　处：《建筑科学》2020年第10期84-88,146,共6页Building Science

基　　金：湖南省教育厅科学研究项目(16C0833);娄底市科技创新计划项目“娄底地区居住建筑围护结构节能技术研究”;湖南省教育厅普通高校教学改革研究项目(湘教通〔2019〕291号);湖南省大学生研究性学习和创新性实验计划项目(湘教通〔2018〕255号)。

摘　　要：随着我国城镇化的快速发展,城市热岛问题日益突出,本文利用遥感技术和实地观测相结合的方法对娄底市城区热岛效应进行了研究。研究得到:1)娄底市城区热岛区分布比较分散,强热岛区和热岛区呈多中心分布;2)城区热岛强度为1.2~4℃,热岛强度最大值出现在夜晚22:00-24:00时,最小值出现在中午12:00-15:00时;3)亮温偏移值与绿化覆盖率呈负相关,相关系数为-0.33,植被覆盖率减小是加剧城区热岛效应的重要因素。本文的研究为缓解娄底市城区热岛效应问题以及其他城市生态建设提供参考。With the rapid development of China’s urbanization,the problem of urban heat islands is becoming increasingly prominent.In this paper,a combination of remote sensing technology and field observations was used to study the heat island effect in Loudi City.The research results show that:1)The distribution of the urban heat islands in Loudi City was relatively scattered,and the strong heat islands as well as heat islands are distributed in multiple centers;2)The heat island intensity in the urban area was 1.2-4℃,with the maximum heat island intensity appears at 22:00-24:00 at night,and the minimum value appears at noon from 12:00-15:00;3)The brightness temperature offset value has a negative correlation with the green coverage,with a correlation coefficient of-0.33.The decrease in vegetation coverage is an important factor that exacerbates the urban heat island effect.The study in this paper provides a reference for alleviating the heat island effect in Loudi and other urban ecological construction.

关 键 词：热岛效应 遥感技术 下垫面特性 实地观测 娄底市城区 

分 类 号：X16[环境科学与工程—环境科学] TP79[自动化与计算机技术—检测技术与自动化装置]