气候变化领域集成服务门户(CCPortal): Vegetation Response to Rising CO2 Amplifies Contrasts in Water Resources Between Global Wet and Dry Land Areas

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DOI	10.1029/2021GL094293
	Vegetation Response to Rising CO2 Amplifies Contrasts in Water Resources Between Global Wet and Dry Land Areas
	Cui, Jiangpeng; Yang, Hui; Huntingford, Chris; Kooperman, Gabriel J.; Lian, Xu; He, Mingzhu; Piao, Shilong
通讯作者	Yang, H ; Piao, SL (通讯作者)
发表日期	2021
ISSN	0094-8276
EISSN	1944-8007
卷号	48 期号:14
英文摘要	Rising atmospheric CO2 impacts on vegetation physiological processes can alter land feedbacks on precipitation and water resources, but understanding of regional differences in these changes is uncertain. We investigate the impact of rising CO2 on land water resources for different wetness levels using four Earth system models. We find an overall tendency of runoff to increase across all wetness levels. However, runoff increases in wet regions are much larger than those in dry regions, especially in wet seasons. This substantial amplification of contrasts between wet and dry regions increases at 3% per 100 ppm increase in CO2 relative to the historical period, reaching 18% for a quadrupling of CO2, quantified by a new wetting contrast index (WCI). Physiological effects suppress evapotranspiration more in wet than dry regions, which has a larger contribution than radiative forcing to the amplification of runoff contrast, reshaping the spatial distribution of future land water resources.
关键词	ELEVATED CO2 PRECIPITATION CHANGE PLANT-RESPONSES ENRICHMENT FACE CLIMATE DROUGHT RUNOFF CMIP5 CYCLE EVAPOTRANSPIRATION
英文关键词	land water resources; CO2 physiological forcing; runoff; WWDD
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000711496700010
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/260445
推荐引用方式 GB/T 7714	Cui, Jiangpeng,Yang, Hui,Huntingford, Chris,et al. Vegetation Response to Rising CO2 Amplifies Contrasts in Water Resources Between Global Wet and Dry Land Areas[J]. 中国科学院青藏高原研究所,2021,48(14).
APA	Cui, Jiangpeng.,Yang, Hui.,Huntingford, Chris.,Kooperman, Gabriel J..,Lian, Xu.,...&Piao, Shilong.(2021).Vegetation Response to Rising CO2 Amplifies Contrasts in Water Resources Between Global Wet and Dry Land Areas.GEOPHYSICAL RESEARCH LETTERS,48(14).
MLA	Cui, Jiangpeng,et al."Vegetation Response to Rising CO2 Amplifies Contrasts in Water Resources Between Global Wet and Dry Land Areas".GEOPHYSICAL RESEARCH LETTERS 48.14(2021).