气候变化领域集成服务门户(CCPortal): Warming-induced tipping points of Arctic and alpine shrub recruitment

CCPortal

DOI	10.1073/pnas.2118120119
	Warming-induced tipping points of Arctic and alpine shrub recruitment
	Lu, Xiaoming; Liang, Eryuan; Babst, Flurin; Julio Camarero, J.; Buentgen, Ulf
通讯作者	Liang, EY (通讯作者)
发表日期	2022
ISSN	0027-8424
EISSN	1091-6490
卷号	119 期号:9
英文摘要	Shrub recruitment, a key component of vegetation dynamics beyond forests, is a highly sensitive indicator of climate and environmental change. Warming-induced tipping points in Arctic and alpine treeless ecosystems are, however, little understood. Here, we compare two long-term recruitment datasets of 2,770 shrubs from coastal East Greenland and from the Tibetan Plateau against atmospheric circulation patterns between 1871 and 2010 Common Era. Increasing rates of shrub recruitment since 1871 reached critical tipping points in the 1930s and 1960s on the Tibetan Plateau and in East Greenland, respectively. A recent decline in shrub recruitment in both datasets was likely related to warmer and drier climates, with a stronger May to July El Nino Southern Oscillation over the Tibetan Plateau and a stronger June to July Atlantic Multidecadal Oscillation over Greenland. Exceeding the thermal optimum of shrub recruitment, the recent warming trend may cause soil moisture deficit. Our findings suggest that changes in atmospheric circulation explain regional climate dynamics and associated response patterns in Arctic and alpine shrub communities, knowledge that should be considered to protect vulnerable high-elevation and high-latitude ecosystems from the cascading effects of anthropogenic warming.
关键词	CLIMATE GROWTH
英文关键词	alpine; Arctic; climate change; shrub recruitment; tipping point
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000766704900006
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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/260771
推荐引用方式 GB/T 7714	Lu, Xiaoming,Liang, Eryuan,Babst, Flurin,et al. Warming-induced tipping points of Arctic and alpine shrub recruitment[J]. 中国科学院青藏高原研究所,2022,119(9).
APA	Lu, Xiaoming,Liang, Eryuan,Babst, Flurin,Julio Camarero, J.,&Buentgen, Ulf.(2022).Warming-induced tipping points of Arctic and alpine shrub recruitment.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,119(9).
MLA	Lu, Xiaoming,et al."Warming-induced tipping points of Arctic and alpine shrub recruitment".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 119.9(2022).