Nitrogen enrichment alters plant N: P stoichiometry and intensifies phosphorus limitation in a steppe ecosystem
文献类型：期刊论文
| 作者 | Zhan, Shuxia; Wang, Yang2; Zhu, Zhicheng2; Li, Wenhuai; Bai, Yongfei
|
| 刊名 | ENVIRONMENTAL AND EXPERIMENTAL BOTANY
 |
| 出版日期 | 2017 |
| 卷号 | 134页码:21-32 |
| 关键词 | N and P limitation N: P stoichiometry Rhizosphere effect Plant-soil feedbacks Water and light availability Primary production Soil N and P availability |
| ISSN号 | 0098-8472 |
| DOI | 10.1016/j.molp.2017.09.006 |
| 文献子类 | Article |
| 英文摘要 | Although many studies have demonstrated that N deposition decreases biodiversity and alters ecosystem functioning, fewer studies have tested how N enrichment affect plant N and P limitation, N: P stoichiometry and ecosystem functioning. We examined the independent and interactive effects of N and P enrichment on plant N: P stoichiometry, nutrient limitation, and thereby ecosystem functioning based on two N, P, and N+P addition experiments in a typical steppe. At the species level, N enrichment increased leaf N: P ratio and P limitation of dominant species. The resporises of plant tissue N: P ratio tend to saturate at soil available N: P supply ratio of approximately 20 for leaf N: P and 10 for root N: P ratio. At the community level, patterns of N and P limitation shifted from N limitation in a normal year to N and P co-limitation in a wet year, triggered mainly by inter-annual changes in soil N and P availability. The homoeostasis of N: P stoichiometry increases from plant leaves to roots and to microbes although the available N: P supply ratio varied by 56-fold in soil. Given that N deposition rates are projected to increase in upcoming decades, N deposition may further alter the stoichiometric balance of N and P and intensify P limitation of steppe ecosystems in future. (C) 2016 Elsevier B.V. All rights reserved. |
| 学科主题 | Biochemistry & Molecular Biology ; Plant Sciences |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1873-7307 |
| WOS关键词 | INNER-MONGOLIA ; NUTRIENT LIMITATION ; GRASSLAND SOIL ; RHIZOSPHERE ; ACIDIFICATION ; RESPONSES ; DIVERSITY ; GROWTH ; MINERALIZATION ; PRODUCTIVITY |
| 语种 | 英语 |
| WOS记录号 | WOS:000414599700012 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Key Research and Development Program of China [2016YFC0500804] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31320103916] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/22076]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhan, Shuxia,Wang, Yang,Zhu, Zhicheng,et al. Nitrogen enrichment alters plant N: P stoichiometry and intensifies phosphorus limitation in a steppe ecosystem[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2017,134:21-32. |
| APA | Zhan, Shuxia,Wang, Yang,Zhu, Zhicheng,Li, Wenhuai,&Bai, Yongfei.(2017).Nitrogen enrichment alters plant N: P stoichiometry and intensifies phosphorus limitation in a steppe ecosystem.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,134,21-32. |
| MLA | Zhan, Shuxia,et al."Nitrogen enrichment alters plant N: P stoichiometry and intensifies phosphorus limitation in a steppe ecosystem".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 134(2017):21-32. |
入库方式： OAI收割
来源：植物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。