Climate Change Research ›› 2020, Vol. 16 ›› Issue (3): 296-305.doi: 10.12006/j.issn.1673-1719.2019.084

• Impacts of Climate Change • Previous Articles     Next Articles

Spatial-temporal change features of impervious surface and its effect on land surface temperature from 1984 to 2014 in Beijing

Jia-Le ZHANG1,Zhi-Hua PAN1(),Wen-Hui KUANG2,Yu-Ying PAN1,Guo-Lin HAN1,Jia-Lin WANG1,Na HUANG1,Zi-Yuan ZHANG1,Wen-Juan YIN1   

  1. 1 College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
    2 Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2019-04-16 Revised:2019-06-13 Online:2020-05-30 Published:2020-06-15
  • Contact: Zhi-Hua PAN E-mail:panzhihua@cau.edu.cn

Abstract:

It is of great scientific significance to study the relationship between urban surface cover and land surface temperature (LST) for improving urban ecological environment. Based on the Landsat TM data, this paper uses the linear spectral hybrid analysis model to extract the impervious surface land information. Combined with the LST and surface heat flux, the spatial-temporal variation characteristics and inter relationships of the impervious surface area (ISA) and the LST are analyzed. The results show that the ISA of Beijing increased rapidly from 1984 to 2014. The medium coverage of ISA decreased, while high coverage increased remarkably. The LST decreased from the city center to the suburbs, and the high temperature area was expanding continuously. There was a significant positive correlation between the LST and ISA, and the rate of the LST rise was the fastest when ISA was at 0.6-0.9. So reducing ISA can alleviate the phenomenon of high temperature area concentration.

Key words: Impervious surface area (ISA), Coverage, Land surface temperature (LST), Spatial-temporal features, Beijing

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