气候变化领域集成服务门户(CCPortal): Vegetation Physiological Response to Increasing Atmospheric CO2 Slows the Decreases in the Seasonal Amplitude of Temperature

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DOI	10.1029/2022GL097829
	Vegetation Physiological Response to Increasing Atmospheric CO2 Slows the Decreases in the Seasonal Amplitude of Temperature
	He, Mingzhu; Lian, Xu; Cui, Jiangpeng; Xu, Hao; Piao, Shilong
通讯作者	Piao, SL (通讯作者)
发表日期	2022
ISSN	0094-8276
EISSN	1944-8007
卷号	49 期号:6
英文摘要	The seasonal amplitude of temperature (SAT) decreases due to non-uniform seasonal warming, which exerts critical impacts on ecosystem functions and services. Previous studies attributed the SAT decrease to changed seasonal budget of atmospheric radiative forcing (RAD), however, potential impacts of vegetation physiological response to CO2 (PHY) on SAT are largely underexplored. Here, we examine the role of PHY in modulating SAT using Earth system model simulations. Globally, PHY continuously increases SAT, offsetting about 55% of the RAD-driven SAT reductions under quadrupled CO2. The PHY-induced SAT enhancement is particularly pronounced in the northern mid-to-high latitudes. Such enhancement is driven directly by stomatal closure-induced evapotranspiration reduction that amplifies warming, and indirectly by suppressing cloud formation that increases downward shortwave radiation. Our results highlight the critical role of vegetation in mediating temperature seasonality and the necessity for a full understanding of PHY feedback when evaluating the benefits of terrestrial ecosystems in mitigating climate change.
关键词	PROJECTED CHANGES AIR-TEMPERATURE ENRICHMENT FACE ANNUAL CYCLE CLIMATE VARIABILITY FEEDBACKS MODELS
英文关键词	seasonal amplitude of temperature; CO2 physiological forcing; radiative forcing; temperature seasonality
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000777608200001
来源期刊	GEOPHYSICAL RESEARCH LETTERS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260624
推荐引用方式 GB/T 7714	He, Mingzhu,Lian, Xu,Cui, Jiangpeng,et al. Vegetation Physiological Response to Increasing Atmospheric CO2 Slows the Decreases in the Seasonal Amplitude of Temperature[J]. 中国科学院青藏高原研究所,2022,49(6).
APA	He, Mingzhu,Lian, Xu,Cui, Jiangpeng,Xu, Hao,&Piao, Shilong.(2022).Vegetation Physiological Response to Increasing Atmospheric CO2 Slows the Decreases in the Seasonal Amplitude of Temperature.GEOPHYSICAL RESEARCH LETTERS,49(6).
MLA	He, Mingzhu,et al."Vegetation Physiological Response to Increasing Atmospheric CO2 Slows the Decreases in the Seasonal Amplitude of Temperature".GEOPHYSICAL RESEARCH LETTERS 49.6(2022).