Disentangling the variability of symbiotic nitrogen fixation rate and the controlling factors
文献类型：期刊论文
| 作者 | Yao, Yanzhong1; Han, Bingbing1; Dong, Xunzhuo1; Zhong, Yunyao1; Niu, Shuli2; Chen, Xinping1; Li, Zhaolei1 |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 30期号:3页码:13 |
| 关键词 | bioavailable nitrogen biomass allocation nitrogen cycling plant taxonomy rhizobia |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.17206 |
| 通讯作者 | Li, Zhaolei(lizhaolei@swu.edu.cn) |
| 英文摘要 | Symbiotic nitrogen (N) fixation (SNF), replenishing bioavailable N for terrestrial ecosystems, exerts decisive roles in N cycling and gross primary production. Nevertheless, it remains unclear what determines the variability of SNF rate, which retards the accurate prediction for global N fixation in earth system models. This study synthesized 1230 isotopic observations to elucidate the governing factors underlying the variability of SNF rate. The SNF rates varied significantly from 3.69 to 12.54 g N m-2 year-1 across host plant taxa. The traits of host plant (e.g. biomass characteristics and taxa) far outweighed soil properties and climatic factors in explaining the variations of SNF rate, accounting for 79.0% of total relative importance. Furthermore, annual SNF yield contributed to more than half of N uptake for host plants, which was consistent across different ecosystem types. This study highlights that the biotic factors, especially host plant traits (e.g. biomass characteristics and taxa), play overriding roles in determining SNF rate compared with soil properties. The suite of parameters for SNF lends support to improve N fixation module in earth system models that can provide more confidence in predicting bioavailable N changes in terrestrial ecosystems. It remains unclear what determines the variability of SNF rate. This study found that SNF rates varied significantly from 3.69 to 12.54 g N m-2 year-1 across host plant taxa. The traits of host plant (e.g. biomass characteristics and taxa) far outweighed climatic and edaphic factors in explaining the variability of SNF rate. The suite of parameters for SNF lends support to improve N fixation module in earth system models.image |
| WOS关键词 | N-2 FIXATION ; PRIMARY SUCCESSION ; PHOSPHORUS ; NODULATION ; LEGUME ; SEEDLINGS ; TRAITS ; KEY |
| 资助项目 | National Key Research and Development Program of China[2022YFF0802104] ; National Key Research and Development Program of China[2023YFE0105000] ; National Key R & D Program of China[2035] ; National Key R & D Program of China[SWU-XDZD22001] ; Innovation Research[SWU-KR22019] ; Fundamental Research Funds for the Central Universities |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001179038000001 |
| 出版者 | WILEY |
| 资助机构 | National Key Research and Development Program of China ; National Key R & D Program of China ; Innovation Research ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/203863]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Li, Zhaolei |
| 作者单位 | 1.Southwest Univ, Coll Resources & Environm, Interdisciplinary Res Ctr Agr Green Dev Yangtze Ri, Minist Agr & Rural Affairs,Key Lab Low carbon Gree, Chongqing 400715, Peoples R China 2.Inst Geog Sci & Nat Resources Res, Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modelling, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Yanzhong,Han, Bingbing,Dong, Xunzhuo,et al. Disentangling the variability of symbiotic nitrogen fixation rate and the controlling factors[J]. GLOBAL CHANGE BIOLOGY,2024,30(3):13. |
| APA | Yao, Yanzhong.,Han, Bingbing.,Dong, Xunzhuo.,Zhong, Yunyao.,Niu, Shuli.,...&Li, Zhaolei.(2024).Disentangling the variability of symbiotic nitrogen fixation rate and the controlling factors.GLOBAL CHANGE BIOLOGY,30(3),13. |
| MLA | Yao, Yanzhong,et al."Disentangling the variability of symbiotic nitrogen fixation rate and the controlling factors".GLOBAL CHANGE BIOLOGY 30.3(2024):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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