气候变化领域集成服务门户(CCPortal): Divergent responses of ecosystem water use efficiency to drought timing over Northern Eurasia

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DOI	10.1088/1748-9326/abf0d1
	Divergent responses of ecosystem water use efficiency to drought timing over Northern Eurasia
	Huang, Mengtian; Zhai, Panmao; Piao, Shilong
通讯作者	Huang, MT (通讯作者)
发表日期	2021
ISSN	1748-9326
卷号	16 期号:4
英文摘要	Warming has resulted in increases in frequency, intensity and/or duration of droughts in most land regions over the globe. Nevertheless, knowledge on how ecosystem water use efficiency (WUE) responds to extreme drought stress and whether the responses are affected by drought timing is still limited. In this study, we examined the changes in ecosystem WUE under extreme drought years over Northern Eurasia during 1982-2011 and further assessed WUE responses to droughts with separate groupings designed to characterize the timing of extreme drought stress. We found that drought timing indeed influenced the responses of ecosystem WUE under extreme drought years. Negative impacts of extreme drought stress during the dry season on ecosystem WUE were more remarkable than those from extreme drought stress during the wet season. Particularly, impacts of droughts on ecosystem carbon-water interactions differed among ecosystem types due to the specific hydrothermal condition of each biome. The information provided by our analyses plays an importance role in identifying water use strategies of terrestrial vegetation in response to drought stress and will help improve our understanding and predictions of the response of ecosystem WUE to global environmental change.
关键词	TERRESTRIAL ECOSYSTEMS FOREST ECOSYSTEMS CLIMATE-CHANGE PHENOLOGICAL RESPONSES EXTREME DROUGHTS ASPEN FOREST CARBON EVAPOTRANSPIRATION DEFICIT CHINA
英文关键词	extreme drought; terrestrial ecosystem; water use efficiency; drought timing
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000639510400001
来源期刊	ENVIRONMENTAL 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/260221
推荐引用方式 GB/T 7714	Huang, Mengtian,Zhai, Panmao,Piao, Shilong. Divergent responses of ecosystem water use efficiency to drought timing over Northern Eurasia[J]. 中国科学院青藏高原研究所,2021,16(4).
APA	Huang, Mengtian,Zhai, Panmao,&Piao, Shilong.(2021).Divergent responses of ecosystem water use efficiency to drought timing over Northern Eurasia.ENVIRONMENTAL RESEARCH LETTERS,16(4).
MLA	Huang, Mengtian,et al."Divergent responses of ecosystem water use efficiency to drought timing over Northern Eurasia".ENVIRONMENTAL RESEARCH LETTERS 16.4(2021).