地理学报 ›› 2019, Vol. 74 ›› Issue (5): 902-911.doi: 10.11821/dlxb201905005
收稿日期:
2018-08-27
修回日期:
2019-02-27
出版日期:
2019-05-25
发布日期:
2019-05-24
通讯作者:
杨俊
E-mail:yangjun@lnnu.edu.cn
作者简介:
冯章献(1982-), 男, 安徽合肥人, 博士, 硕士生导师, 中国地理学会会员(S110006756M), 研究方向为城市与区域发展。E-mail: 基金资助:
FENG Zhangxian1,WANG Shijun1,JIN Shanhe2,YANG Jun2()
Received:
2018-08-27
Revised:
2019-02-27
Online:
2019-05-25
Published:
2019-05-24
Contact:
YANG Jun
E-mail:yangjun@lnnu.edu.cn
Supported by:
摘要:
随着城市化进程的加快,城市热岛效应越来越受到关注。然而,很少有研究分析城市形态和城市风环境对地表温度(LST)的影响。利用建筑和遥感等多源数据,基于GIS空间方法,结合迎风面指数(FAI)和地表温度,研究长春市城区迎风面指数时空差异,探索城市形态对城市地表温度影响。结果表明:① 迎风面指数呈现从中心城区向外扩散的空间趋势,高密度以及高建筑对风的阻碍程度大。朝阳区北部迎风面指数最大,最大值达到15.1,各个区边缘区迎风面指数最小,最小值为0.01。② 研究区昼夜地表温度温差大,范围分别是18.15 ℃~31.73 ℃、4.27 ℃~18.43 ℃。空间分布上与迎风面指数存在相同特征,城市中心城区温度高,以同心圆方式逐渐向外扩散。受城市建筑形态、人为热源等因素影响,与夜间相比,白天高温地区范围更大。③ 迎风面指数与地表温度在一定程度上相关,昼夜相关系数分别为0.371和0.355。建筑在垂直方向和水平方向上空间形态不同,对地表温度影响存在差异。结合城市风环境状况开展城市形态信息的定量研究,对于城市气候学家、城市规划师探寻城市潜在通风廊道、改善城市通风环境具有重要理论价值和现实意义。
冯章献,王士君,金珊合,杨俊. 长春市城市形态及风环境对地表温度的影响[J]. 地理学报, 2019, 74(5): 902-911.
FENG Zhangxian,WANG Shijun,JIN Shanhe,YANG Jun. Effects of urban morphology and wind conditions on land surface temperature in Changchun[J]. Acta Geographica Sinica, 2019, 74(5): 902-911.
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