Allometry and Distribution of Nitrogen in Natural Plant Communities of the Tibetan Plateau
文献类型：期刊论文
| 作者 | Li, Xin1,2; Li, Mingxu1; Xu, Li1; Liu, Congcong1; Zhao, Wenzong3; Cheng, Changjin4; He, Nianpeng1,2,5 |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2022-03-11 |
| 卷号 | 13页码:10 |
| 关键词 | nitrogen allometry environmental regulation homeostasis plant functional group |
| ISSN号 | 1664-462X |
| DOI | 10.3389/fpls.2022.845813 |
| 通讯作者 | Li, Mingxu(Mingxuli@igsnrr.ac.cn) ; He, Nianpeng(henp@igsnrr.ac.cn) |
| 英文摘要 | Nitrogen (N) is an important element for most terrestrial ecosystems; its variation among different plant organs, and allocation mechanisms are the basis for the structural stability and functional optimization of natural plant communities. The nature of spatial variations of N and its allocation mechanisms in plants in the Tibetan Plateau-known as the world's third pole-have not been reported on a large scale. In this study, we consistently investigated the N content in different organs of plants in 1564 natural community plots in Tibet Plateau, using a standard spatial-grid sampling setup. On average, the N content was estimated to be 19.21, 4.12, 1.14, and 10.86 mg g(-1) in the leaf, branch, trunk, and root, respectively, with small spatial variations. Among organs in communities, leaves were the most active, and had the highest N content, independent of the spatial location; as for vegetation type, communities dominated by herbaceous plants had higher N content than those dominated by woody plants. Furthermore, the allocation of N among different plant organs was allometric, and not significantly influenced by vegetation types and environmental factors; the homeostasis of N was also not affected much by the environment, and varied among the plant organs. In addition, the N allocation strategy within Tibet Plateau for different plant organs was observed to be consistent with that in China. Our findings systematically explore for the first time, the spatial variations in N and allometric mechanisms in natural plant communities in Tibet Plateau and establish a spatial-parameters database to optimize N cycle models. |
| WOS关键词 | N-P STOICHIOMETRY ; LEAF ; PHOSPHORUS ; SOIL ; RESPONSES ; CLIMATE ; ROOT ; AVAILABILITY ; VARIABILITY ; ALLOCATION |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000783664600001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/174291]  |
| 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.Inst Geog Sci & Nat Resources Res, Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 3.Minzu Univ China, Coll Life & Environm Sci, Beijing, Peoples R China 4.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing, Peoples R China 5.Northeast Forestry Univ, Ctr Ecol Res, Harbin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xin,Li, Mingxu,Xu, Li,et al. Allometry and Distribution of Nitrogen in Natural Plant Communities of the Tibetan Plateau[J]. FRONTIERS IN PLANT SCIENCE,2022,13:10. |
| APA | Li, Xin.,Li, Mingxu.,Xu, Li.,Liu, Congcong.,Zhao, Wenzong.,...&He, Nianpeng.(2022).Allometry and Distribution of Nitrogen in Natural Plant Communities of the Tibetan Plateau.FRONTIERS IN PLANT SCIENCE,13,10. |
| MLA | Li, Xin,et al."Allometry and Distribution of Nitrogen in Natural Plant Communities of the Tibetan Plateau".FRONTIERS IN PLANT SCIENCE 13(2022):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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