Plant C:N ratio predicts community composition changes under N addition in an alpine meadow
文献类型：期刊论文
| 作者 | Peng, Jinlong1,2; Ma, Fangfang1,2; Tian, Dashuan1; Quan, Quan1,2; Chen, Chen1,2; Liao, Jiaqiang1,2; Zhou, Qingping3; Niu, Shuli1,2 |
| 刊名 | JOURNAL OF ECOLOGY
 |
| 出版日期 | 2022-12-01 |
| 页码 | 12 |
| 关键词 | alpine meadow C N ratio ecological stoichiometry functional trait N deposition plant community composition productivity |
| ISSN号 | 0022-0477 |
| DOI | 10.1111/1365-2745.14048 |
| 通讯作者 | Niu, Shuli(sniu@igsnrr.ac.cn) |
| 英文摘要 | Plant functional traits play important roles in determining plant responses to environmental change and further shaping community composition, but the role of plant stoichiometry remains poorly understood in regulating community responses to continually increased nitrogen (N) deposition. In this paper, we used a 5-year manipulative experiment with six N addition rates (N-rate) to explore how the N response of different plant functional groups including forbs, grasses, sedges and legumes links to above-ground plant carbon-to-N ratio (C:N, related to N use strategies) in an alpine meadow. We found that plant C:N explained 45.8% and 42.6% of N response variation among functional groups in plant above-ground net primary productivity (ANPP) and abundance. Over increasing N-rate, functional groups with higher C:N (grasses and sedges) tended to grow better and have greater abundance, yet those with lower C:N (forbs and legumes) were at risk of loss, subsequently mitigating the N-caused decline in community-level plant C:N. This was mainly due to that functional groups with higher C:N not only possessed higher N use efficiency but also had greater competitiveness for above-ground light due to higher plant height. In addition, we also found that plant C:N differences among functional groups remained relatively constant over N-rate, suggesting that the ability of this trait to indicate functional group-specific N responses was stable. Synthesis. Our results show that the N responses of different herbaceous plants can be well explained by plant C:N. Thus, we suggest the prediction of plant community composition changes under N deposition would be greatly improved by considering this easily measured stoichiometric trait. |
| WOS关键词 | NITROGEN ADDITION ; ECOSYSTEM MULTIFUNCTIONALITY ; ELEMENTAL STOICHIOMETRY ; INTRASPECIFIC VARIATION ; TERRESTRIAL ECOSYSTEMS ; PHOSPHORUS LIMITATION ; SPECIES RICHNESS ; TRAIT ; DIVERSITY ; RESPONSES |
| 资助项目 | National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; [31988102] ; [2019QZKK0302] |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000892666100001 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/187670]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Niu, Shuli |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 3.Southwest Univ Nationalities, Inst Qinghai Tibetan Plateau, Chengdu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Jinlong,Ma, Fangfang,Tian, Dashuan,et al. Plant C:N ratio predicts community composition changes under N addition in an alpine meadow[J]. JOURNAL OF ECOLOGY,2022:12. |
| APA | Peng, Jinlong.,Ma, Fangfang.,Tian, Dashuan.,Quan, Quan.,Chen, Chen.,...&Niu, Shuli.(2022).Plant C:N ratio predicts community composition changes under N addition in an alpine meadow.JOURNAL OF ECOLOGY,12. |
| MLA | Peng, Jinlong,et al."Plant C:N ratio predicts community composition changes under N addition in an alpine meadow".JOURNAL OF ECOLOGY (2022):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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