Low N addition rates may maintain community stability over time in alpine grasslands
文献类型：期刊论文
| 作者 | He, Yunlong3; Zhang, Yangjian2,3; Zong, Ning2,3; Hou, Ge3; Zhu, Juntao2,3; Jiang, Lin1 |
| 刊名 | ECOLOGICAL PROCESSES
 |
| 出版日期 | 2026-03-17 |
| 卷号 | 15期号:1页码:23 |
| 关键词 | Alpine grassland Community biomass Low nitrogen rate Nitrogen deposition Precipitation variability |
| DOI | 10.1186/s13717-026-00682-9 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | BackgroundNumerous studies have demonstrated that nitrogen (N) enrichment typically reduces ecosystem stability, yet how low N addition rates influence temporal dynamics of stability remains poorly understood. Here, we examined the temporal effects of different N addition levels (0, 2.5, 5, and 10 g N m-2 year-1) on the stability of aboveground net primary production (ANPP), species richness, species stability, and species asynchrony, and how the relationships among them change with a 7-year experiment in alpine grasslands.ResultsLow N addition significantly enhanced the temporal stability of ANPP during the initial years, whereas this positive effect attenuated over time. In contrast, high N addition reduced community stability, independent of temporal changes. Across the entire experimental period, the stabilizing effect of low N addition was primarily driven by increased species asynchrony, whereas the destabilizing effect of high N addition was mainly mediated by decreased species stability. Moreover, greater interannual precipitation variability amplified the negative effect of high N addition on community stability by reducing species asynchrony, which resulted from the enhanced sensitivity of the dominant species, Stipa purpurea, to precipitation fluctuations.ConclusionsThe low N input (<= 2.5 g N m(-)2 year(-)1) may be prioritized to maintain alpine ecosystem stability in the short term, while attention should be paid to its potential cumulative effects over the long term. |
| URL标识 | 查看原文 |
| WOS关键词 | ECOSYSTEM STABILITY ; NITROGEN DEPOSITION ; PRECIPITATION ; BIODIVERSITY ; DIVERSITY ; RESPONSES ; DYNAMICS ; IMPACTS ; PRODUCTIVITY ; LIMITATION |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001716462900001 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221297]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Zhu, Juntao |
| 作者单位 | 1.Georgia Inst Technol, Sch Biol Sci, Atlanta, GA 30332 USA 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | He, Yunlong,Zhang, Yangjian,Zong, Ning,et al. Low N addition rates may maintain community stability over time in alpine grasslands[J]. ECOLOGICAL PROCESSES,2026,15(1):23. |
| APA | He, Yunlong,Zhang, Yangjian,Zong, Ning,Hou, Ge,Zhu, Juntao,&Jiang, Lin.(2026).Low N addition rates may maintain community stability over time in alpine grasslands.ECOLOGICAL PROCESSES,15(1),23. |
| MLA | He, Yunlong,et al."Low N addition rates may maintain community stability over time in alpine grasslands".ECOLOGICAL PROCESSES 15.1(2026):23. |
入库方式： OAI收割
来源：地理科学与资源研究所
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