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Water scaling of ecosystem carbon cycle feedback to climate warming

文献类型：期刊论文

作者Quan, Quan6,8; Tian, Dashuan6; Luo, Yiqi5,7; Zhang, Fangyue6,8; Crowthers, Tom W.9; Zhu, Kai1; Chen, Han Y. H.2,3; Zhou, Qingping4; Niu, Shuli6,8
刊名SCIENCE ADVANCES
出版日期2019-08-01
卷号5期号:8页码:7
ISSN号2375-2548
DOI10.1126/sciadv.aav1131
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.
WOS关键词SOIL CO2 EFFLUX ; HETEROTROPHIC RESPIRATION ; PRIMARY PRODUCTIVITY ; DIFFERENT RESPONSES ; NORTH-AMERICA ; ALPINE MEADOW ; ELEVATED CO2 ; TEMPERATURE ; EXCHANGE ; MOISTURE
资助项目Ministry of Science and Technology of China[2016YFC0501803] ; National Natural Science Foundation of China[31625006] ; National Natural Science Foundation of China[31470528] ; Thousand Youth Talents Plan ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0302] ; University of California, Santa Cruz
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000482759500001
出版者AMER ASSOC ADVANCEMENT SCIENCE
源URL[http://ir.igsnrr.ac.cn/handle/311030/69705]  
专题生态系统网络观测与模拟院重点实验室_外文论文
作者单位1.Univ Calif Santa Cruz, Dept Environm Studies, Santa Cruz, CA 95060 USA
2.Lakehead Univ, Fac Nat Resources Management, 955 Oliver Rd, Thunder Bay, ON P7B 5E1, Canada
3.Fujian Normal Univ, Key Lab Humid Subtrop Ecogeog Proc, Minist Educ, Fuzhou 350007, Fujian, Peoples R China
4.Southwest Univ Nationalities, Inst Qinghai Tibetan Plateau, Chengdu 610041, Sichuan, Peoples R China
5.No Arizona Univ, Dept Biol Sci, Ctr Ecosyst Sci & Soc, Box 5640, Flagstaff, AZ 86011 USA
6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
7.Tsinghua Univ, Dept Earth Syst Sci, Beijing 100084, Peoples R China
8.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
9.Swiss Fed Inst Technol, Inst Integrat Biol, Univ Str 16, CH-8006 Zurich, Switzerland
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.

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来源：地理科学与资源研究所

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