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Accelerated land surface greening caused by earlier permafrost thawing

文献类型：期刊论文

作者Hua, Hao1,6; Wang, Jian1,6; Zohner, Constantin M.2; Penuelas, Josep3,4; Ran, Youhua5; Wu, Chaoyang1,6
刊名NATURE COMMUNICATIONS
出版日期2025-12-16
卷号17期号:1页码:920
DOI10.1038/s41467-025-67644-1
产权排序1
文献子类Article
英文摘要Persistent and above-average warming has advanced the start of spring permafrost thawing, intensifying climate warming through carbon feedbacks. However, the extent to which variations in spring permafrost thawing contribute to greening trends in permafrost-affected areas (i.e., increases in vegetation greenness) over time remains unclear, limiting our understanding of the ecological consequences of permafrost degradation. Analyzing 40-year freeze/thaw data and multiple satellite-derived greenness indicators, we identify widespread increases in the sensitivity of spring greenness to spring permafrost thawing based on moving-window analyses, indicating that advances in spring permafrost thawing have played a progressively stronger role in promoting spring greening, particularly in boreal forests and tundra regions underlain by continuous permafrost. In addition to the region-specific climate and permafrost conditions, we uncover biogeophysical pathways accounting for the increase in sensitivity of spring greenness to spring permafrost thawing, including reduced albedo, earlier vegetation phenology, and enhanced soil moisture infiltration. Notably, state-of-the-art Dynamic Global Vegetation Models consistently underestimate both the magnitude and variability of sensitivity of spring greenness to spring permafrost thawing. These findings highlight the temporal changes in vegetation responses to freeze-thaw dynamics, necessitating improved model projections concurrent with climate change.
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WOS关键词TIBETAN PLATEAU ; VEGETATION ; SOIL ; PHENOLOGY ; TUNDRA ; PRODUCTIVITY ; DEGRADATION ; FOREST ; EARTH
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:001668141400001
出版者NATURE PORTFOLIO
源URL[http://ir.igsnrr.ac.cn/handle/311030/219789]  
专题陆地表层格局与模拟院重点实验室_外文论文
通讯作者Wu, Chaoyang
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China;
2.Swiss Fed Inst Technol, Inst Integrat Biol, Dept Environm Syst Sci, Zurich, Switzerland;
3.CREAF, Barcelona, Catalonia, Spain;
4.UAB, CSIC, Global Ecol Unit, CREAF, Barcelona, Catalonia, Spain;
5.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Peoples R China
6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China;
推荐引用方式
GB/T 7714		 Hua, Hao,Wang, Jian,Zohner, Constantin M.,et al. Accelerated land surface greening caused by earlier permafrost thawing[J]. NATURE COMMUNICATIONS,2025,17(1):920.
APA Hua, Hao,Wang, Jian,Zohner, Constantin M.,Penuelas, Josep,Ran, Youhua,&Wu, Chaoyang.(2025).Accelerated land surface greening caused by earlier permafrost thawing.NATURE COMMUNICATIONS,17(1),920.
MLA Hua, Hao,et al."Accelerated land surface greening caused by earlier permafrost thawing".NATURE COMMUNICATIONS 17.1(2025):920.

入库方式： OAI收割

来源：地理科学与资源研究所

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