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Arid Land Geography ›› 2025, Vol. 48 ›› Issue (12): 2132-2142.doi: 10.12118/j.issn.1000-6060.2025.034

• Climate Change and Surface Process • Previous Articles     Next Articles

Impact of urbanization on local temperatures in different functional areas of cities in arid regions

GAO Na1,2(), CUI Yang1,2(), GAO Ruina1,2, LI Wanchun1,2, SUN Jian1,2, LI Xin1,2   

  1. 1 Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions, China Meteorological Administration, Yinchuan 750002, Ningxia, China
    2 Ningxia Key Laboratory for Meteorological Disaster Prevention and Reduction, Yinchuan 750002, Ningxia, China
  • Received:2025-01-16 Revised:2025-02-26 Online:2025-12-25 Published:2025-12-30
  • Contact: CUI Yang E-mail:198779gn@163.com;cuiyang@cma.gov.cn

Abstract:

To investigate the impact of rapid urbanization on temperatures in different functional zones of arid cities against the backdrop of climate warming, daily ground-level average, maximum, and minimum temperature data from 1961 to 2023 from the Helan, Yinchuan, and Yongning stations, along with ERA-5 reanalysis data, were analyzed using the observation minus reanalysis method. The study examined the influence and characteristics of urbanization on the warming effects in various functional zones of arid cities. The results reveal that against the broader trend of climate warming, Yinchuan City has experienced a significant overall rise in temperatures. Furthermore, the contribution of different urban functional zones to temperature increases follows the order industrial zones>residential zones>green zones. The sensitivity of these zones to average and minimum temperatures is notably higher than that to maximum temperatures. In addition, as the area of urban green zones decreases, the contribution of urbanization to warming effects on average, maximum, and minimum temperatures gradually increases. Compared to average temperatures, annual temperature extremes in Yinchuan are primarily determined by global and large-scale regional climatic factors, with urban development and functional zone distribution having a lesser influence. By deepening the understanding of warming effects across functional zones, this study provides scientific theoretical foundations and references for enhancing climate-resilient urban development, improving comprehensive disaster prevention and mitigation capabilities, and promoting sustainable development in arid regions of northwest China.

Key words: local temperature, urbanization, climate change, observation minus reanalysis method, contribution rate