Importance of soil moisture conservation in mitigating climate change

Zhiyan Zuo ¹Liang Qiao ²Renhe Zhang ²Deliang Chen ³Shilong Piao ⁴Dong Xiao ⁵Kaiwen Zhang²

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作者信息

1. Key Laboratory of Polar Atmosphere-ocean-ice System for Weather and Climate of Ministry of Education/Shanghai Key Laboratory of Ocean-Land-Atmosphere Boundary Dynamics and Climate Change,Department of Atmospheric and Oceanic Sciences/Institute of Atmospheric Sciences,Fudan University,Shanghai 200438,China;Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science and Technology,Nanjing 210044,China
2. Key Laboratory of Polar Atmosphere-ocean-ice System for Weather and Climate of Ministry of Education/Shanghai Key Laboratory of Ocean-Land-Atmosphere Boundary Dynamics and Climate Change,Department of Atmospheric and Oceanic Sciences/Institute of Atmospheric Sciences,Fudan University,Shanghai 200438,China
3. Department of Earth Sciences,University of Gothenburg Gothenburg 40530,Sweden
4. Sino-French Institute for Earth System Science,College of Urban and Environmental Sciences,Peking University,Beijing 100091,China
5. Key Laboratory of Cites'Mitigation and Adaptation to Climate Change in Shanghai,China Meteorological Administration,Shanghai 200030,China
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Abstract

A troubling feedback loop,where drier soil contributes to hotter climates,has been widely recognized.This study,drawing on climate model simulations,reveals that maintaining current global soil moisture levels could significantly alleviate 32.9％of land warming under low-emission scenarios.This action could also postpone reaching critical warming thresholds of 1.5 ℃ and 2.0 ℃ by at least a decade.Crucially,preserving soil moisture at current levels could prevent noticeable climate change impacts across 42％of the Earth's land,a stark deviation from projections suggesting widespread impacts before the 2060s.To combat soil drying,afforestation in mid-to-low latitude regions within the next three decades is pro-posed as an effective strategy to increase surface water availability.This underscores the substantial potential of nature-based solutions for managing soil moisture,benefiting both climate change mitiga-tion and ecological enhancement.

Key words

Global warming/Soil moisture/Climate change signal/Nature-based solutions

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基金项目

国家自然科学基金(42288101)

国家自然科学基金(42175053)

国家重点研发计划(2022YFF0801703)

Swedish BECC and MERGE()

Swedish Research Council VR(2021-02163)

Swedish Research Council VR(2022-06011)

出版年

2024

科学通报(英文版)

中国科学院

科学通报(英文版)

CSTPCD

ISSN：1001-6538

参考文献量58

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