Effects of elevated CO2 on plant C-N-P stoichiometry in terrestrial ecosystems: A meta-analysis
Du, Chenjun1,2; Wang, Xiaodan1; Zhang, Mengyao1,2; Jing, Jie1,2; Gao, Yongheng1
2019-02-10
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
卷号650页码:697-708
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.
关键词Rising CO2 Plant stoichiometry CO2 acclimation Spatial difference Experiment condition Meta-analysis
DOI10.1016/j.scitotenv.2018.09.051
关键词[WOS]CARBON-NITROGEN INTERACTIONS ; MOJAVE DESERT SHRUBS ; ATMOSPHERIC CO2 ; GLOBAL CHANGE ; PHOTOSYNTHETIC RESPONSES ; DIOXIDE ENRICHMENT ; CNP STOICHIOMETRY ; FOREST ECOSYSTEMS ; TEMPERATE FOREST ; GAS-EXCHANGE
语种英语
资助项目National Key Research and Development Program of China[2016YFC0501802] ; National Natural Science Foundation of China[41271276] ; 1000 Talents Program of Sichuan Province of China ; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences[SDSQB-2016-02]
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000447092700073
项目资助者National Key Research and Development Program of China ; National Natural Science Foundation of China ; 1000 Talents Program of Sichuan Province of China ; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences
出版者ELSEVIER SCIENCE BV
引用统计
文献类型期刊论文
条目标识符http://ir.imde.ac.cn/handle/131551/23897
专题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
第一作者单位中国科学院水利部成都山地灾害与环境研究所
通讯作者单位中国科学院水利部成都山地灾害与环境研究所
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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.
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