Seed nutrient is more stable than leaf in response to changing multiple resources in an alpine meadow
文献类型：期刊论文
| Author | Li, Jiapu2; Tian, Dashuan1; Yu, Kailiang4; Guo, Hongbo; Zhang, Ruiyang; Wang, Jinsong; Zhou, Qingping5; Niu, Shuli1 |
| Source | ECOLOGICAL PROCESSES
 |
| Issued Date | 2023-09-06 |
| Volume | 12Issue:1Pages:43 |
| Keyword | Alpine meadow Leaf Multiple resource change Nitrogen concentration N:P ratio Phosphorus concentrations Seed |
| ISSN | 2192-1709 |
| DOI | 10.1186/s13717-023-00454-9 |
| Rank | 1 |
| Subtype | Article |
| English Abstract | Background It has been long thought that nitrogen (N), phosphorus (P) concentrations and their ratios (N:P) in metabolically active or functional organs (i.e., leaves) are less responsive to environmental changes. Little attention, however, has been paid to the reproductive organs-seeds, while seeds may maintain their nutrients more stable for the evolutionary fitness of next generation.Methods Here, we conducted a field experiment of N, P addition and drought in an alpine meadow, aiming to compare the difference of leaf and seed nutrients and stoichiometric ratios in response to these resource treatments and their interactions. Four dominant species were selected among grass and forb functional groups, including Elymus nutans, Deschampsia caespitosa, Artemisia roxburghiana and Polygonum viviparum.Results Under natural conditions, leaf N and P concentrations were consistently lower than seed among species. However, leaf nutrients were much more sensitive than seed nutrients to N and P addition. Specifically, N or P addition accordingly increased leaf N or P concentration by 22.20-44.24% and 85.54-93.61%, while only enhanced seed N or P concentration by 5.15-17.20% and 15.17-32.72%, respectively. Leaf N or P concentration was significantly reduced by P or N addition, but seed nutrients remained unchanged. In contrast, drought did not change both organ nutrients. Similarly, nutrient addition and drought had synergistic interactions on leaf nutrients, but not on seed nutrients.Conclusions This study highlights that seed nutrient concentrations could be more stable than metabolically active leaf organ when facing multidimensional resource changes. This complements the traditional view on the 'Stable Leaf Nutrient Hypothesis' with the involvement of reproductive organs. The less responsiveness of seed nutrients suggests the adaptive strategy to ensure the success of next generations and long-term plant demographic stability. |
| Subject | Environmental Sciences & Ecology |
| WOS Keyword | PHOSPHORUS STOICHIOMETRY ; PLANT NITROGEN ; WATER ; BIOMASS ; AVAILABILITY ; LIMITATION ; ADDITIONS ; GROWTH |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS ID | WOS:001064311600001 |
| Publisher | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/197870]  |
| Collection | 生态系统网络观测与模拟院重点实验室_外文论文 |
| Affiliation | 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Peoples R China 2.Inst Geog Sci & Nat Resources Res, Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 3.Princeton Univ, High Meadows Environm Inst, Princeton, NJ 02138 USA 4.Southwest Minzu Univ, Inst Qinghai Tibetan Plateau, Chengdu 610041, Peoples R China 5.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100101, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Jiapu,Tian, Dashuan,Yu, Kailiang,et al. Seed nutrient is more stable than leaf in response to changing multiple resources in an alpine meadow[J]. ECOLOGICAL PROCESSES,2023,12(1):43. |
| APA | Li, Jiapu.,Tian, Dashuan.,Yu, Kailiang.,Guo, Hongbo.,Zhang, Ruiyang.,...&Niu, Shuli.(2023).Seed nutrient is more stable than leaf in response to changing multiple resources in an alpine meadow.ECOLOGICAL PROCESSES,12(1),43. |
| MLA | Li, Jiapu,et al."Seed nutrient is more stable than leaf in response to changing multiple resources in an alpine meadow".ECOLOGICAL PROCESSES 12.1(2023):43. |
入库方式： OAI收割
来源：地理科学与资源研究所
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