Nitrogen addition reduces alpine grassland stability via enhanced temporal synchrony and population variability
文献类型：期刊论文
| 作者 | Song, Minghua7; Tian, Yuqiang5,6; Hu, Qiwu4; Li, Yikang3; Xu, Xingliang7; Zheng, Lili2; Cornelissen, Johannes H. C.10; Zhou, Huakun3; Wang, Guiqiang3,9; Loreau, Michel1,8 |
| 刊名 | OECOLOGIA
 |
| 出版日期 | 2026-02-06 |
| 卷号 | 208期号:2页码:32 |
| 关键词 | Nitrogen enrichment Ecosystem stability Primary productivity Species diversity Tibetan Plateau |
| ISSN号 | 0029-8549 |
| DOI | 10.1007/s00442-026-05868-8 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Nitrogen enrichment leads to diversity loss of plant community in grasslands, and it typically enhances productivity in short-term scale but decreases it in the long term. Short-term negative N effect on stability has generally been primarily attributed to species synchrony rather than species loss. However, the persistent species loss caused by long-term N enrichment may result in high population variability, ultimately contributing to variability in community productivity. Here, we report results of a 19 year-long experiment that manipulated livestock exclusion and N enrichment in an alpine grassland to test their effects on species richness and stability of aboveground productivity through the years. Results demonstrated that the stability of aboveground productivity declined during the first non-overlapping 5 year window which was primarily driven by increased species synchrony. In the second non-overlapping time window, decrease in stability was largely driven by compounded effects of persistent synchrony and amplified dominant species variability. In the third and fourth non-overlapping 5 year windows, functional diversity loss and subordinate species variability contributed to a continued decline in stability. Mechanistically, the losses of species and functional diversity under different N forms shaped temporal patterns of synchrony and population variability, explaining decrease in stability. These findings reveal a time-dependent destabilization cascade, i.e., initial synchrony-driven fluctuations evolved into a dual effect of synchrony and dominant species variability, ultimately disrupted by population variability. We posit that diversity help to sustains grassland functioning not only by increasing productivity, but also by maintaining a dynamic balance between synchrony and population variability. This highlights the necessity of conserving plant diversity to secure ecosystem functioning under global change. |
| URL标识 | 查看原文 |
| WOS关键词 | ECOSYSTEM STABILITY ; SPECIES-DIVERSITY ; BIODIVERSITY LOSS ; PLANT DIVERSITY ; COMPLEMENTARITY ; MECHANISMS ; EXPLAIN ; MEADOW ; PRODUCTIVITY ; COMMUNITIES |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001680753400001 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/220997]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Song, Minghua |
| 作者单位 | 1.CNRS, Theoret & Expt Ecol Stn, 2 Route CNRS, F-09200 Moulis, France; 2.Taizhou Univ, Inst Wetland Ecol & Clone Ecol, Zhejiang Prov Key Lab Plant Evolutionary Ecol & Co, Sch Life Sci, Taizhou 318000, Peoples R China; 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Restorat Ecol Cold Area Qinghai Prov, 59 Xiguan Dajie, Xining 810008, Peoples R China; 4.Jiangxi Normal Univ, Sch Geog & Environm, Nanchang 330022, Peoples R China; 5.Beijing Normal Univ, Fac Geog Sci, Sch Nat Resources, Beijing 100875, Peoples R China; 6.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China; 7.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, A11 Datun Rd, Beijing 100101, Peoples R China; 8.Peking Univ, Inst Ecol, Coll Urban & Environm Sci, Beijing 100871, Peoples R China 9.Univ Chinese Acad Sci, Beijing 101408, Peoples R China; 10.Vrije Univ Amsterdam, Fac Earth & Life Sci, Dept Ecol Sci, Syst Ecol, Boelelaan 1085, NL-1081 HV Amsterdam, Netherlands; |
| 推荐引用方式 GB/T 7714 | Song, Minghua,Tian, Yuqiang,Hu, Qiwu,et al. Nitrogen addition reduces alpine grassland stability via enhanced temporal synchrony and population variability[J]. OECOLOGIA,2026,208(2):32. |
| APA | Song, Minghua.,Tian, Yuqiang.,Hu, Qiwu.,Li, Yikang.,Xu, Xingliang.,...&Loreau, Michel.(2026).Nitrogen addition reduces alpine grassland stability via enhanced temporal synchrony and population variability.OECOLOGIA,208(2),32. |
| MLA | Song, Minghua,et al."Nitrogen addition reduces alpine grassland stability via enhanced temporal synchrony and population variability".OECOLOGIA 208.2(2026):32. |
入库方式： OAI收割
来源：地理科学与资源研究所
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。