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成渝城市群城镇化的热岛效应
陈颖锋1,2; 王玉宽1; 傅斌1; 刘勤1; 王跚1,3; 穆羽1,2
Corresponding Author王玉宽
2015-12-15
Source Publication生态学杂志
ISSN1000-4890
Volume34Issue:12Pages:3494-3501
Abstract

热岛效应是城镇化对生态环境的重要影响之一,科学评价城镇化过程中热岛效应的时空变化对于新型城镇建设具有重要意义。成渝城市群位于中国西部,是由成都-重庆2个特大城市,以及14个大、中、小城市组成的城市群,近年来城镇化的快速发展,使得热岛效应日益突出。本研究利用MODIS /Terra 卫星2000—2010 年的逐月地表温度数据,计算成渝城市群内16 个城市城区和城市郊区的平均温度之差,进而分析城市群的热岛效应。结果表明: ( 1) 成渝城市群存在较为明显的四季和昼夜的热岛强度差异; ( 2) 特大城市重庆市和成都市的热岛效应明显强于其他大、中、小型城市,城市群内建成区规模与城市日间热岛强度呈显著的相关性; ( 3) 2000—2010 年所有城市的热岛效应呈减弱趋势,10 年间热岛强度下降0. 3 ℃。老城区热岛强度10 年间平均上升0. 21 ℃,其中日间热岛强度变化较小,夜间热岛强度呈显著上升趋势。

Other Abstract

Heat island effect is one of the most striking impacts of urbanization on eco-environment. It is important for the construction of new cities to evaluate the temporal and spatial change of heat island effect during the process of urbanization. Chengdu-Chongqing urban agglomeration is located in the western part of China,consisting of 2 megalopolis and 14 large-,medium-,and small-sized cities. The heat island effect is increasingly outstanding in recent years due to the development of urbanization in these areas. In this study,based on the MODIS /Terra monthly land surface temperature ( LST) data from 2000 to 2010,we analyzed the heat island effect of Chengdu-Chongqing urban agglomeration by calculating the difference of average temperature between urban and rural areas of the 16 cities. The results showed that: ( 1) The seasonal and diurnal heat island effect in Chengdu-Chongqing urban agglomeration was relatively obvious. ( 2) The heat island intensity in mega-cities Chengdu and Chongqing was greater than in the other 14 cities,and a significant correlation was observed between the built-up area and the daytime heat island intensity. ( 3) The overall heat island intensity decreased by 0. 3 ℃ during 2000 and 2010.In the meantime,the heat island intensity in old towns increased by 0. 21 ℃,and the change was slight in the daytime and significant in the nighttime.

Keyword城市热岛 成渝城市群 建成区 城镇化 Modis
DOI10.13292/j.1000-4890.2015.0327
Indexed ByCSCD ; 北大中文核心
Language中文
CSCD IDCSCD:5604157
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17910
Collection山区发展研究中心
Affiliation1.中国科学院水利部成都山地灾害与环境研究所
2.中国科学院大学
3.成都理工大学
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
陈颖锋,王玉宽,傅斌,等. 成渝城市群城镇化的热岛效应[J]. 生态学杂志,2015,34(12):3494-3501.
APA 陈颖锋,王玉宽,傅斌,刘勤,王跚,&穆羽.(2015).成渝城市群城镇化的热岛效应.生态学杂志,34(12),3494-3501.
MLA 陈颖锋,et al."成渝城市群城镇化的热岛效应".生态学杂志 34.12(2015):3494-3501.
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