| 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
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| 2019-02-10 | |
| 发表期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
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| ISSN | 0048-9697 |
| 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 |
| DOI | 10.1016/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 |
| 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. |
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