C:N:P stoichiometry in terrestrial ecosystems in China
文献类型：期刊论文
| 作者 | Zhang, Jiahui3,4; Li, Mingxu3; Xu, Li3; Zhu, Jianxing3; Dai, Guanhua1; He, Nianpeng2,3,4 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2021-11-15 |
| 卷号 | 795页码:9 |
| 关键词 | Ecological stoichiometry Community-weighted mean Plant organs Ecosystem components |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2021.148849 |
| 通讯作者 | Li, Mingxu(mingxuli@igsnrr.ac.cn) ; He, Nianpeng(henp@igsnrr.ac.cn) |
| 英文摘要 | Ecological stoichiometry is an efficient tool for exploring the balance and cycling of coupled elements (e.g., carbon [C], nitrogen [N], and phosphorus [P]). Therefore, C:N:P ratios are essential input parameters in most ecological models of productivity or C cycling. However, previous C:N:P ratios estimated using the species arithmetic means exhibit high uncertainty when used as direct model parameters. In this study, we comprehensively calculated C:N:P ratios from organs to ecosystems for 66 typical natural ecosystems in China (e.g., forests, grasslands, and deserts) using the community biomass-weighted mean (CWM), with the consistently measured element data of 3229 site-species combination. The C:N:P ratios were 427:19:1, 885:13:1, 9549:33:1, and 797:18:1 in the leaves, branches, trunks, and roots of terrestrial ecosystems, respectively. Furthermore, the ratios were 91:4:1, 919:17:1, 1121:25:1, and 55:4:1 in ecosystems, plant communities, litter, and soils, respectively. Signifi-cant differences were observed in C:N:P ratios among different ecosystem types and biomes, with generally higher ratios in forests. Moreover, the latitudinal patterns of C:N ratios exhibited no obvious trends, whereas both C:P and N:P ratios decreased significantly with increasing latitude, especially in forests. Environmental conditions explained 15.4-86.6% of the spatial variation of C:N:P ratios from organs to ecosystems. In summary, this study systematically demonstrates the variations in biome-scale C:N:P stoichiometry in terrestrial ecosystems, as well as their influencing factors, using the CWM. More importantly, this study provides a systematic dataset of C: N:P ratios from plot to biome scale that can be used to improve relevant ecological models. (c) 2021 Elsevier B.V. All rights reserved. |
| WOS关键词 | FOREST ; PHOSPHORUS ; NITROGEN ; CARBON ; DYNAMICS ; BALANCE ; MODEL ; AVAILABILITY ; RESORPTION ; TRAITS |
| 资助项目 | National Science and Technology Basic Resources Survey Program of China[2019FY101304] ; National Natural Science Foundation of China[31988102] ; National Natural Science Foundation of China[31961143022] ; National Key Research and Development Programof China[2017YFA0604803] ; Youth Innovation Research Project from Key Laboratory of Ecosystem Network Observation and Modeling, CAS |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000700334500002 |
| 出版者 | ELSEVIER |
| 资助机构 | National Science and Technology Basic Resources Survey Program of China ; National Natural Science Foundation of China ; National Key Research and Development Programof China ; Youth Innovation Research Project from Key Laboratory of Ecosystem Network Observation and Modeling, CAS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/165770]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Li, Mingxu; He, Nianpeng |
| 作者单位 | 1.Chinese Acad Sci, Res Stn Changbai Mt Forest Ecosyst, Antu 133613, Peoples R China 2.Northeast Normal Univ, Inst Grassland Sci, Key Lab Vegetat Ecol, Minist Educ, Changchun 130024, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Jiahui,Li, Mingxu,Xu, Li,et al. C:N:P stoichiometry in terrestrial ecosystems in China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,795:9. |
| APA | Zhang, Jiahui,Li, Mingxu,Xu, Li,Zhu, Jianxing,Dai, Guanhua,&He, Nianpeng.(2021).C:N:P stoichiometry in terrestrial ecosystems in China.SCIENCE OF THE TOTAL ENVIRONMENT,795,9. |
| MLA | Zhang, Jiahui,et al."C:N:P stoichiometry in terrestrial ecosystems in China".SCIENCE OF THE TOTAL ENVIRONMENT 795(2021):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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