电竞博彩-电子竞技博彩

Study on the spatial-temporal pattern and evolution of surface urban heat island in 180 shrinking cities in China

Peng, XX (Peng, Xiaoxue) ; Zhou, YY (Zhou, Yinying)  ; Fu, XH (Fu, Xianhao)  ; Xu, JF (Xu, Junfeng) 

SUSTAINABLE CITIES AND SOCIETY

Volume 84 Article Number 104018

DOI10.1016/j.scs.2022.104018

Published SEP 2022

Indexed 2022-07-23

Document Type Article

Abstract

Under the background of rapid urbanization, the urban heat island effect becomes more and more intense, which is common in many big cities. However, it is unclear whether this change will lead to a new turnaround in the mitigation of the urban heat island effect in shrinking cities with population loss. In this study, based on the MODIS product from 2001 to 2019, we analyzed the spatial and temporal patterns of surface urban heat island (SUHI) in 180 shrinking cities in China. The changes of SUHI at different scales in combination with latitude and climate zones were quantified. The results showed that SUHI intensity varied greatly in different latitudes and climate zones. In the arid zone, the SUHI intensity is the lowest in the daytime and the highest in the night. Combined with the SUHI characteristics of typical expanding cities, SUHI of shrinking cities in China shows a decreasing trend. This indicates that in shrinking cities, the decrease of population has a certain easing effect on SUHI. However, the driving mechanism behind it needs to be further explored so as to put forward specific measures to alleviate SUHI more specifically.