地理学报 ›› 2019, Vol. 74 ›› Issue (11): 2342-2357.doi: 10.11821/dlxb201911011
吴子璇1,2,3,张强1,2,3(),宋长青1,2,3,张芬4,朱秀迪1,2,3,孙鹏5,范科科1,2,3,余慧倩1,2,3,申泽西1,2,3
收稿日期:
2018-06-19
修回日期:
2019-07-01
出版日期:
2019-11-25
发布日期:
2019-11-01
作者简介:
吴子璇(1996-), 女, 陕西西安人, 硕士生, 主要从事城市水文学与遥感水文等领域研究。E-mail: wuzx1026@163.com
基金资助:
WU Zixuan1,2,3,ZHANG Qiang1,2,3(),SONG Changqing1,2,3,ZHANG Fen4,ZHU Xiudi1,2,3,SUN Peng5,FAN Keke1,2,3,YU Huiqian1,2,3,SHEN Zexi1,2,3
Received:
2018-06-19
Revised:
2019-07-01
Published:
2019-11-25
Online:
2019-11-01
Supported by:
摘要:
利用1967-2015年珠江三角洲21个气象站逐日气温资料,根据人口数量、人口密度和夜间灯光数据等数据集划分城市和郊区站点类型,在此基础上,对比不同时空尺度城市站和郊区站气温变化,分析了城市化对气温影响的时空差异性。结果表明:① 1967-2015年,珠三角地区年平均气温、平均最高气温和最低气温均显著升高,平均最低气温的增温速率最高,分别是平均气温的1.05~1.16倍和平均最高气温的0.95~1.32倍。其中,年平均气温变化速率的季节差异普遍表现为秋冬季节增温最强,增温速率均高于0.3 ℃/10a,春夏季节增温较弱,增温速率最低为0.16 ℃/10a。② 利用城市和海表温度对比研究城市化效应,受城市化影响,珠三角年平均气温的增温趋势是0.096 ℃/10a。③ 利用城市和郊区对比研究城市化效应,1967-2015年城市化对城区的气温升高具有显著贡献,而且城市化对平均最高气温及最低气温增温的贡献率最大。其中,城市化对年平均气温变化的贡献率的季节差异表现为夏冬季节较强,贡献率高于11.8%,春秋季节较弱,贡献率最低仅为4.46%。④ 站点划分方法,城市化发展不同阶段及研究时间尺度的选择均导致城市化增温效应的研究结果具有较大不确定性。不同站点分类方法多指示城市化对最低气温升高的贡献率最强,最高可达到38.6%。
吴子璇, 张强, 宋长青, 张芬, 朱秀迪, 孙鹏, 范科科, 余慧倩, 申泽西. 珠三角城市化对气温时空差异性影响[J]. 地理学报, 2019, 74(11): 2342-2357.
WU Zixuan, ZHANG Qiang, SONG Changqing, ZHANG Fen, ZHU Xiudi, SUN Peng, FAN Keke, YU Huiqian, SHEN Zexi. Impacts of urbanization on spatio-temporal variations of temperature over the Pearl River Delta[J]. Acta Geographica Sinica, 2019, 74(11): 2342-2357.
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