Effects of elevated CO2 on plant C-N-P stoichiometry in terrestrial ecosystems: A meta-analysis

doi:10.1016/j.scitotenv.2018.09.051

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Effects of elevated CO2 on plant C-N-P stoichiometry in terrestrial ecosystems: A meta-analysis
	Du, Chenjun 1,2; Wang, Xiaodan1 ; Zhang, Mengyao 1,2; Jing, Jie 1,2; Gao, Yongheng1
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-02-10
卷号	650 页码:697-708
关键词	Rising CO2 Plant stoichiometry CO2 acclimation Spatial difference Experiment condition Meta-analysis
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2018.09.051
英文摘要	A substantial number of experiments have so far been carried out to study the response of the C-N-P stoichiometry of terrestrial plants to the rising CO2 level of the earth. However, there is a need of systematic evaluation for assessing the impact of the elevated CO2 on plant C-N-P stoichiometry. In the present investigation, a comprehensive meta-analysis involving 386 published reports and including 4481 observations has been carried out. The goal of the research was to determine the response of plants to their C-N-P stoichiometry due to elevated levels of global atmospheric CO2. The results showed that rising CO2 altered the concentration of C (+2.19%, P < 0.05), N (-9.73%, P < 0.001) and P (-3.23%, P < 0.001) and C: N (+13.29%, P < 0.001) and N: P ratios (-7.32%, P < 0.0001). Overall, a slightly increasing trend in the C: P ratio (P > 0.05) in the plant was observed. However, plant leaf, shoot and herbaceous type of plants showed more sensitivity to rising CO2. CO2 magnitude exhibited a positive effect (P < 0.05) on C: N ratio. Additionally, " CO2 acclimation" hypothesis as proposed by the authors of the current paper was also tested in the study. Results obtained, especially, show changes of C and N concentrations and C: P ratio to an obvious down-regulation for long-term CO2 fumigation. At spatial scales, a reduction of plant N concentration was found to be higher in the southern hemisphere. The CO2 enrichment methods affected the plant C-N-P stoichiometry. Compared to FACE (free-air CO2 enrichment), OTC (open top chamber) showed larger changes of C, N, P, and N: P. The results of the present study should, therefore, become helpful to offer a better understanding towards the response of the terrestrial plant C-N-P stoichiometry to an elevated global atmospheric CO2 in the future. (C) 2018 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000447092700073
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/23897]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Gao, Yongheng
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Du, Chenjun,Wang, Xiaodan,Zhang, Mengyao,et al. Effects of elevated CO2 on plant C-N-P stoichiometry in terrestrial ecosystems: A meta-analysis[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,650:697-708.
APA	Du, Chenjun,Wang, Xiaodan,Zhang, Mengyao,Jing, Jie,&Gao, Yongheng.(2019).Effects of elevated CO2 on plant C-N-P stoichiometry in terrestrial ecosystems: A meta-analysis.SCIENCE OF THE TOTAL ENVIRONMENT,650,697-708.
MLA	Du, Chenjun,et al."Effects of elevated CO2 on plant C-N-P stoichiometry in terrestrial ecosystems: A meta-analysis".SCIENCE OF THE TOTAL ENVIRONMENT 650(2019):697-708.