Nitrogen availability determines ecosystem productivity in response to climate warming

doi:10.1002/ecy.3823

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Nitrogen availability determines ecosystem productivity in response to climate warming
	Liu, Yang 3; Men, Mingxin ; Peng, Zhengping ; Houx, James H., III ; Peng, Yunfeng 3
刊名	ECOLOGY
	2022
卷号	103 期号:12
关键词	carbon-climate feedback carbon-nitrogen interactions climate change nitrogen availability primary productivity
ISSN号	0012-9658
DOI	10.1002/ecy.3823
文献子类	Article
英文摘要	One of the major uncertainties for carbon-climate feedback predictions is an inadequate understanding of the mechanisms governing variations in ecosystem productivity response to warming. Temperature and water availability are regarded as the primary controls over the direction and magnitude of warming effects, but some unexplained results signal that our understanding is incomplete. Using two complementary meta-analyses, we present evidence that soil nitrogen (N) availability drives the warming effects on ecosystem productivity more strongly than thermal and hydrological factors over a broad geographical scale. First, by synthesizing temperature manipulation experiments, a meta-regression model analysis showed that the warming effect on productivity is mainly driven by its effect on soil N availability. Sites with a higher warming-induced increase in N availability were characterized by stronger productivity enhancement and vice versa, suggesting that N is a limiting factor across sites. Second, a synthesis of full-factorial warming x N addition experiments demonstrated that N addition significantly weakened the positive warming effect, because the additional N induced by warming may not further benefit plant growth when N limitation is relieved, providing experimental evidence that N regulates the warming effect. Furthermore, we demonstrated that warming effects on soil N availability were modulated by changes in dissolved organic N and soil microbes. Overall, our findings enrich a new mechanistic understanding of the varying magnitudes of observed productivity response to warming, and the N scaling of warming effects may help to constrain climate projections.
学科主题	Ecology
电子版国际标准刊号	1939-9170
出版地	HOBOKEN
WOS关键词	SOIL RESPIRATION ; CARBON FLUXES ; TERRESTRIAL ECOSYSTEMS ; BIOMASS ACCUMULATION ; CO2 FLUX ; METAANALYSIS ; PLANT ; INCREASES ; TUNDRA ; TEMPERATURE
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	WILEY
WOS记录号	WOS:000856493900001
资助机构	Second Tibetan Plateau Scientific Expedition and Research (STEP) program [2019QZKK0302] ; Strategic Priority Research Program of Chinese Academy of Sciences [XDA26020201] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences [2018106] ; Hebei Key Research and Development Program [19226425D] ; Hebei Talent Engineering Training Support Project [A201910003]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/29055]
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.Natl Crop Insurance Serv, Agr Res & Technol, Overland Pk, KS USA 3.Hebei Agr Univ, Key Lab Farmland Ecoenvironm Hebei, Coll Resources & Environm Sci, Baoding, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yang,Men, Mingxin,Peng, Zhengping,et al. Nitrogen availability determines ecosystem productivity in response to climate warming[J]. ECOLOGY,2022,103(12).
APA	Liu, Yang,Men, Mingxin,Peng, Zhengping,Houx, James H., III,&Peng, Yunfeng.(2022).Nitrogen availability determines ecosystem productivity in response to climate warming.ECOLOGY,103(12).
MLA	Liu, Yang,et al."Nitrogen availability determines ecosystem productivity in response to climate warming".ECOLOGY 103.12(2022).