Exposures to temperature beyond threshold disproportionately reduce vegetation growth in the northern hemisphere

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Exposures to temperature beyond threshold disproportionately reduce vegetation growth in the northern hemisphere
	Wu, Xiuchen ; Guo, Weichao ; Liu, Hongyan ; Li, Xiaoyan ; Peng, Changhui ; Allen, Craig D.; Zhang, Cicheng ; Wang, Pei ; Pei, Tingting ; Ma, Yujun
刊名	NATIONAL SCIENCE REVIEW
	2019-07
卷号	6 期号:4 页码:786-795
关键词	temperature exposure vegetation growth extremely high temperature non-linear response temperate and boreal northern hemisphere
ISSN号	2095-5138
英文摘要	In recent decades, terrestrial vegetation in the northern hemisphere (NH) has been exposed to warming and more extremely high temperatures. However, the consequences of these changes for terrestrial vegetation growth remain poorly quantified and understood. By examining a satellite-based vegetation index, tree-ring measurements and land-surface model simulations, we discovered a consistent convex pattern in the responses of vegetation growth to temperature exposure (TE) for forest, shrub and grass in both the temperate (30 degrees-50 degrees N) and boreal (50 degrees-70 degrees N) NH during the period of 1982-2012. The response of vegetation growth to TE for the three vegetation types in both the temperate and boreal NH increased convergently with increasing temperature, until vegetation type-dependent temperature thresholds were reached. A TE beyond these temperature thresholds resulted in disproportionately weak positive or even strong negative responses. Vegetation growth in the boreal NH was more vulnerable to extremely high-temperature events than vegetation growth in the temporal NH. The non-linear responses discovered here provide new insights into the dynamics of northern terrestrial ecosystems in a warmer world.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42730]
专题	生态环境研究中心_城市与区域生态国家重点实验室
作者单位	1.US Geol Survey, Ft Collins Sci Ctr, Jemez Mountains Field Stn, Los Alamos, NM 87544 USA 2.Univ Quebec, Inst Environm Sci, Montreal, PQ G1K 9H7, Canada 3.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 4.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China 5.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xiuchen,Guo, Weichao,Liu, Hongyan,et al. Exposures to temperature beyond threshold disproportionately reduce vegetation growth in the northern hemisphere[J]. NATIONAL SCIENCE REVIEW,2019,6(4):786-795.
APA	Wu, Xiuchen.,Guo, Weichao.,Liu, Hongyan.,Li, Xiaoyan.,Peng, Changhui.,...&Chen, Deliang.(2019).Exposures to temperature beyond threshold disproportionately reduce vegetation growth in the northern hemisphere.NATIONAL SCIENCE REVIEW,6(4),786-795.
MLA	Wu, Xiuchen,et al."Exposures to temperature beyond threshold disproportionately reduce vegetation growth in the northern hemisphere".NATIONAL SCIENCE REVIEW 6.4(2019):786-795.