Attenuated asymmetry of above- versus belowground stoichiometry to a decadal nitrogen addition during stand development
文献类型：期刊论文
| 作者 | Ning Shijie2; He Xinru2; Ma Tian2 ; Yan Tao1,2
|
| 刊名 | Ecology
 |
| 出版日期 | 2024-08 |
| 卷号 | 105期号:12页码:1-14 |
| 关键词 | dynamic equilibrium, ecosystem C cycling, forest succession, nutrient availability, stand age, stoichiometric flexibility |
| ISSN号 | 0012-9658 |
| DOI | 10.1002/ecy.4458 |
| 文献子类 | Article |
| 英文摘要 | Deciphering the linkage between ecological stoichiometry and ecosystem func tioning under anthropogenic nitrogen (N) deposition is critical for understand ing the impact of afforestation on terrestrial carbon (C) sequestration.However, the specific changes in above- versus belowground stoichiometricasymmetry with stand age in response to long-term N addition remain poorlyunderstood. In this study, we investigated changes in stoichiometry followinga decadal addition of three levels of N (control, no N addition; low N addition, 20 kg N ha−1 year−1; high N addition, 50 kg N ha−1 year−1) in young, intermediate, and mature stands in three temperate larch plantations (Larixprincipis-rupprechtii) in North China. We found that low N addition had no impact on both above- (leaf and litter) and belowground (soil and microbe)stoichiometry. In contrast, high N addition resulted in significant asymmetryin above- versus belowground stoichiometry, which then diminished during stand development. Following 10 years of N inputs, the young and intermediate plantations transitioned from a state of relative N limitation to co-limitation by both N and phosphorus (P), whereas the mature plantation continued to experience relative N limitation. Conversely, soil microorganisms exhibited relative P limitation in all three plantations. Broader niche differenti ation (N limitation for trees, b ut P limitation for microorganisms) under long-term N input may have been responsible for the faster attainment of stoi chiometric homeostasis in mature plantations than in young plantations. Our findings provide stoichiometric-based insight into the operating mechanismsof large C sinks in young forests, particularly above- versus belowground C stock asymmetry, and highlight the need to consider the role of flexible stoichiometry when forecasting future forest C sinks. |
| WOS关键词 | MICROBIAL BIOMASS CALIBRATION ; FUMIGATION-EXTRACTION METHOD ; LONG-TERM NITROGEN ; NUTRIENT RESORPTION ; ELEMENTAL STOICHIOMETRY ; PHOSPHORUS LIMITATION ; ECOSYSTEM STRUCTURE ; LARCH PLANTATIONS ; CNP |
| 语种 | 英语 |
| WOS记录号 | WOS:001342150700001 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/40078]  |
| 专题 | 个人在本单位外知识产出 |
| 通讯作者 | Yan Tao |
| 作者单位 | 1.Qingyuan Forest CERN, National Observation and Research Station, Shenyang, Liaoning, China 2.State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China |
| 推荐引用方式 GB/T 7714 | Ning Shijie,He Xinru,Ma Tian,et al. Attenuated asymmetry of above- versus belowground stoichiometry to a decadal nitrogen addition during stand development[J]. Ecology,2024,105(12):1-14. |
| APA | Ning Shijie,He Xinru,Ma Tian,&Yan Tao.(2024).Attenuated asymmetry of above- versus belowground stoichiometry to a decadal nitrogen addition during stand development.Ecology,105(12),1-14. |
| MLA | Ning Shijie,et al."Attenuated asymmetry of above- versus belowground stoichiometry to a decadal nitrogen addition during stand development".Ecology 105.12(2024):1-14. |
入库方式： OAI收割
来源：烟台海岸带研究所
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