Water scaling of ecosystem carbon cycle feedback to climate warming

doi:10.1126/sciadv.aav1131

	Water scaling of ecosystem carbon cycle feedback to climate warming
	Quan, Quan 1,8; Tian, Dashuan 8; Luo, Yiqi 3,5; Zhang, Fangyue 1,8; Crowthers, Tom W.6; Zhu, Kai 4; Chen, Han Y. H.7,9; Zhou, Qingping 2; Niu, Shuli 1,8
刊名	SCIENCE ADVANCES
	2019-08-01
卷号	5 期号:8 页码:7
ISSN号	2375-2548
DOI	10.1126/sciadv.aav1131
通讯作者	Niu, Shuli(sniu@igsnrr.ac.cn)
英文摘要	It has been well established by field experiments that warming stimulates either net ecosystem carbon uptake or release, leading to negative or positive carbon cycle-climate change feedback, respectively. This variation in carbon-climate feedback has been partially attributed to water availability. However, it remains unclear under what conditions water availability enhances or weakens carbon-climate feedback or even changes its direction. Combining a field experiment with a global synthesis, we show that warming stimulates net carbon uptake (negative feedback) under wet conditions, but depresses it (positive feedback) under very dry conditions. This switch in carbon-climate feedback direction arises mainly from scaling effects of warming-induced decreases in soil water content on net ecosystem productivity. This water scaling of warming effects offers generalizable mechanisms not only to help explain varying magnitudes and directions of observed carbon-climate feedback but also to improve model prediction of ecosystem carbon dynamics in response to climate change.
资助项目	Ministry of Science and Technology of China[2016YFC0501803] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0302] ; National Natural Science Foundation of China[31625006] ; National Natural Science Foundation of China[31470528] ; Thousand Youth Talents Plan ; University of California, Santa Cruz
WOS关键词	SOIL CO2 EFFLUX ; HETEROTROPHIC RESPIRATION ; PRIMARY PRODUCTIVITY ; DIFFERENT RESPONSES ; NORTH-AMERICA ; ALPINE MEADOW ; ELEVATED CO2 ; TEMPERATURE ; EXCHANGE ; MOISTURE
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	AMER ASSOC ADVANCEMENT SCIENCE
WOS记录号	WOS:000482759500001
资助机构	Ministry of Science and Technology of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; National Natural Science Foundation of China ; Thousand Youth Talents Plan ; University of California, Santa Cruz
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/69705]
专题	中国科学院地理科学与资源研究所
通讯作者	Niu, Shuli
作者单位	1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Southwest Univ Nationalities, Inst Qinghai Tibetan Plateau, Chengdu 610041, Sichuan, Peoples R China 3.No Arizona Univ, Dept Biol Sci, Ctr Ecosyst Sci & Soc, Box 5640, Flagstaff, AZ 86011 USA 4.Univ Calif Santa Cruz, Dept Environm Studies, Santa Cruz, CA 95060 USA 5.Tsinghua Univ, Dept Earth Syst Sci, Beijing 100084, Peoples R China 6.Swiss Fed Inst Technol, Inst Integrat Biol, Univ Str 16, CH-8006 Zurich, Switzerland 7.Lakehead Univ, Fac Nat Resources Management, 955 Oliver Rd, Thunder Bay, ON P7B 5E1, Canada 8.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 9.Fujian Normal Univ, Key Lab Humid Subtrop Ecogeog Proc, Minist Educ, Fuzhou 350007, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Quan, Quan,Tian, Dashuan,Luo, Yiqi,et al. Water scaling of ecosystem carbon cycle feedback to climate warming[J]. SCIENCE ADVANCES,2019,5(8):7.
APA	Quan, Quan.,Tian, Dashuan.,Luo, Yiqi.,Zhang, Fangyue.,Crowthers, Tom W..,...&Niu, Shuli.(2019).Water scaling of ecosystem carbon cycle feedback to climate warming.SCIENCE ADVANCES,5(8),7.
MLA	Quan, Quan,et al."Water scaling of ecosystem carbon cycle feedback to climate warming".SCIENCE ADVANCES 5.8(2019):7.