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<p>This study presents evidence of accelerated warming in both air and soil temperatures in Fuyang from 1985 to 2024, based on observational data. Our findings reveal a consistent upward trend in air temperature over the past four decades, in line with the global mean air temperature increase. Remarkably, the surface soil temperature has shown a more pronounced rise, with a warming rate of 0.53&#xa0;°C per decade, which surpasses the warming rate of the air temperature (0.35&#xa0;°C per decade), and the warming rate diminishes with increasing soil depth. March emerges as the month with the most significant temperature increase, exhibiting a rise of over 1&#xa0;°C per decade in both air and soil temperatures. Furthermore, a clear divergence in warming trends is observed between the first and most recent two decades: the warming rates in the latter period are substantially higher. Daytime, nighttime, and compound day–night heatwaves exhibited modest, non-significant decadal increases of 1.56, 3.21, and 0.93 days from 1985 to 2004, but surged significantly by 12.36, 12.92, and 9.91 days between 2005 and 2024.Notably, 2024 has set a new benchmark as the hottest year in four decades, shattering numerous records for both air and soil temperatures. These findings contribute critical insights into the broader context of climate change, offering significant scientific support for research on its effects on agricultural productivity, ecological systems, and human health.</p>

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Accelerated warming of air and soil temperatures: evidence from observations in Fuyang from 1985 to 2024

  • 期刊论文

  • 发表日期：

    2025年5月9日

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  • Qiudan Dai,
  • Lingyun Wu,
  • Binghao Jia,
  • Lu Wang,
  • Xia Zhang,
  • Lixia Zhang,
  • Zhenghui Xie,
  • Qingkui Zhang,
  • Sichao Zhang

摘要

This study presents evidence of accelerated warming in both air and soil temperatures in Fuyang from 1985 to 2024, based on observational data. Our findings reveal a consistent upward trend in air temperature over the past four decades, in line with the global mean air temperature increase. Remarkably, the surface soil temperature has shown a more pronounced rise, with a warming rate of 0.53 °C per decade, which surpasses the warming rate of the air temperature (0.35 °C per decade), and the warming rate diminishes with increasing soil depth. March emerges as the month with the most significant temperature increase, exhibiting a rise of over 1 °C per decade in both air and soil temperatures. Furthermore, a clear divergence in warming trends is observed between the first and most recent two decades: the warming rates in the latter period are substantially higher. Daytime, nighttime, and compound day–night heatwaves exhibited modest, non-significant decadal increases of 1.56, 3.21, and 0.93 days from 1985 to 2004, but surged significantly by 12.36, 12.92, and 9.91 days between 2005 and 2024.Notably, 2024 has set a new benchmark as the hottest year in four decades, shattering numerous records for both air and soil temperatures. These findings contribute critical insights into the broader context of climate change, offering significant scientific support for research on its effects on agricultural productivity, ecological systems, and human health.