Precipitation manipulation and terrestrial carbon cycling: The roles of treatment magnitude, experimental duration and local climate

doi:10.1111/geb.13356

	Precipitation manipulation and terrestrial carbon cycling: The roles of treatment magnitude, experimental duration and local climate
	Wang, Jinsong 1,2,3; Tian, Dashuan 1; Knapp, Alan K.4,5; Chen, Han Y. H.6; Luo, Yiqi 2,3; Li, Zhaolei 1,2,3; Hou, Enqing 2,3; Huang, Xinzhao 2,3,7; Jiang, Lifen 2,3; Niu, Shuli 1,8
刊名	GLOBAL ECOLOGY AND BIOGEOGRAPHY
	2021-07-08
页码	13
关键词	carbon cycling climatic context experimental duration precipitation response synthesis treatment magnitude
ISSN号	1466-822X
DOI	10.1111/geb.13356
通讯作者	Niu, Shuli(sniu@igsnrr.ac.cn)
英文摘要	Aim Precipitation manipulation experiments have shown diverse terrestrial carbon (C) cycling responses when the ecosystem is subjected to different magnitudes of altered precipitation, various experimental durations or heterogeneity in local climate. However, how these factors combine to affect C cycle responses to changes in precipitation remains unclear. Location Global. Time period 1990-2019. Major taxa studied Terrestrial ecosystems. Methods Using observations from 230 published studies in which precipitation was manipulated and terrestrial C cycling variables were measured, we conducted a global meta-analysis to investigate responses of diverse C cycle processes to altered precipitation, including gross ecosystem productivity, ecosystem respiration, net ecosystem productivity, ecosystem carbon use efficiency, net primary productivity (NPP), aboveground and belowground NPP, aboveground and belowground biomass, shoot-to-root ratio, soil respiration and soil microbial biomass C. Results We found that C cycling responses were correlated linearly and positively with the magnitude of precipitation treatments. We also detected that the responses of NPP and its aboveground component (ANPP) to altered precipitation weakened with experimental duration. Furthermore, gross ecosystem productivity, ecosystem respiration and net ecosystem productivity showed larger responses to precipitation treatments of greater magnitude over shorter time periods. The response of soil respiration, a key component of the C budget in most terrestrial ecosystems, depended in particular on the local climate. Local temperature and precipitation not only influenced the magnitude of the response of soil respiration to altered precipitation but also affected its sensitivity to the magnitude of the precipitation treatments, with higher sensitivities in the response of soil respiration to treatment magnitude at drier and colder sites. Main conclusions Our findings highlight the importance of the interactions between the magnitude of precipitation treatments, their duration and the local climate in the response of ecosystem C cycling to altered precipitation, which is crucial to a better understanding of ecosystem C processes and functioning and projecting them under changing precipitation regimes.
资助项目	National Natural Science Foundation of China[31625006] ; National Natural Science Foundation of China[31800404] ; National Natural Science Foundation of China[31988102] ; International Postdoctoral Exchange Fellowship Program[20180005] ; National Key R&D Program of China[2017YFA0604802]
WOS关键词	SOIL RESPIRATION ; ECOSYSTEM CARBON ; DROUGHT ; PRODUCTIVITY ; RESPONSES ; DYNAMICS ; EXTREMES ; CO2 ; COMPONENTS ; RECOMMENDATIONS
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
语种	英语
出版者	WILEY
WOS记录号	WOS:000670790400001
资助机构	National Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/163857]
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.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA 3.No Arizona Univ, Dept Biol Sci, Box 5640, Flagstaff, AZ 86011 USA 4.Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA 5.Colorado State Univ, Grad Degree Program Ecol, Ft Collins, CO 80523 USA 6.Lakehead Univ, Fac Nat Resources Management, Thunder Bay, ON, Canada 7.Anhui Agr Univ, Sch Forestry & Landscape Architecture, Hefei, Peoples R China 8.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jinsong,Tian, Dashuan,Knapp, Alan K.,et al. Precipitation manipulation and terrestrial carbon cycling: The roles of treatment magnitude, experimental duration and local climate[J]. GLOBAL ECOLOGY AND BIOGEOGRAPHY,2021:13.
APA	Wang, Jinsong.,Tian, Dashuan.,Knapp, Alan K..,Chen, Han Y. H..,Luo, Yiqi.,...&Niu, Shuli.(2021).Precipitation manipulation and terrestrial carbon cycling: The roles of treatment magnitude, experimental duration and local climate.GLOBAL ECOLOGY AND BIOGEOGRAPHY,13.
MLA	Wang, Jinsong,et al."Precipitation manipulation and terrestrial carbon cycling: The roles of treatment magnitude, experimental duration and local climate".GLOBAL ECOLOGY AND BIOGEOGRAPHY (2021):13.