气候变化领域集成服务门户(CCPortal): Earlier leaf-out warms air in the north

CCPortal

DOI	10.1038/s41558-020-0713-4
	Earlier leaf-out warms air in the north
	Xu X.; Riley W.J.; Koven C.D.; Jia G.; Zhang X.
发表日期	2020
ISSN	1758-678X
起始页码	370
结束页码	375
卷号	10 期号:4
英文摘要	Earlier leaf-out in response to climate warming has been recorded in northern temperate and boreal regions. In turn, this shift modifies climate by altering seasonal cycles of surface energy, water and carbon budgets. Here, we use the Community Earth System Model 1.2 to investigate climate feedbacks from advanced leaf-out in northern temperate and boreal vegetation. An imposed 12-day earlier leaf-out in this region, consistent with recent observations, enhances annual surface warming in the Northern Hemisphere. We identify warming hotspots in the Canadian Arctic Archipelago (~0.7 °C), east and west edges of Siberia (~0.4 °C) and southeastern Tibetan Plateau (~0.3 °C). We attribute this enhanced warming to combined effects of indirect water vapour, cloud and snow-albedo radiative feedbacks through intensified poleward water vapour transport rather than direct vegetation albedo and latent heat biophysical feedbacks. With continued warming, positive feedbacks between climate and leaf phenology are likely to amplify warming in the northern high latitudes. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	albedo; Boreal Kingdom; carbon budget; phenology; surface energy; water vapor; Canada; Canadian Arctic; China; Qinghai-Xizang Plateau; Siberia
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171697
作者单位	Key Laboratory of Regional Climate-Environment for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; School of Atmospheric Science, Nanjing University of Information Science and Technology, Nanjing, China
推荐引用方式 GB/T 7714	Xu X.,Riley W.J.,Koven C.D.,et al. Earlier leaf-out warms air in the north[J],2020,10(4).
APA	Xu X.,Riley W.J.,Koven C.D.,Jia G.,&Zhang X..(2020).Earlier leaf-out warms air in the north.Nature Climate Change,10(4).
MLA	Xu X.,et al."Earlier leaf-out warms air in the north".Nature Climate Change 10.4(2020).