Shifts in plant ecological strategies drive divergent soil organic carbon stock in alpine ecosystems
文献类型：期刊论文
| 作者 | Wang, Kunwei7; Gao, Decai6; Zhong, Zhiwei5; Li, Mai-He4; Gessler, Arthur3,4; Wu, Zhengfang7; He, Hong S.2; Liu, Kai7; Yin, Hang1; Si, Haixiang7 |
| 刊名 | JOURNAL OF ECOLOGY
 |
| 出版日期 | 2026-02-21 |
| 卷号 | 114期号:2页码:e70270 |
| 关键词 | alpine ecosystem plant functional trait plant strategy soil enzyme soil organic carbon temperature sensitivity |
| ISSN号 | 0022-0477 |
| DOI | 10.1111/1365-2745.70270 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Soil organic carbon (SOC) stock in alpine ecosystems is fundamentally governed by the tension between plant-mediated carbon supply and its subsequent transformation by soil microbes. In alpine ecosystems, climate warming is reshaping community trait composition, driving a transition from stress-tolerant to more acquisitive and competitive strategies. While these shifts are known to have profound implications for SOC dynamics, the mechanistic pathways by which different plant strategies influence SOC remain poorly understood. In this study, we investigated how trait-based shifts in plant community strategies influence SOC stock across a broad elevational and geographical gradient on seven mountains in China. We classified plant communities based on their functional traits into competitors (C-strategy) and stress-tolerators (S-strategy) groups. We combined Bayesian mixed-effects models and piecewise structural equation modelling (SEM) to disentangle the direct and indirect effects of plants, soil properties, microbial biomass and extracellular enzyme on SOC stock. Our results revealed significant differences in SOC stock between the two strategies, with C-strategy communities exhibiting higher SOC levels than S-strategy communities. In S-strategy communities, which are characterized by traits like high leaf dry matter content, the stock of SOC was dominated by soil microbes (56.2%) over plants (40.4%). In contrast, in C-strategy communities, with traits favouring high-specific leaf area (SLA) and tall height, the effects of plants on SOC (56.1%) were more than two times greater than those of microbes (26.1%), a disparity likely driven by the higher temperature sensitivity of plants compared to soil microbes. These findings highlight SOC stocks are predominantly shaped by plant strategies, with distinct mechanisms linked to their functional traits and carbon input pathways in alpine ecosystems. Synthesis. By demonstrating that different plant strategies drive diametrically opposed carbon regulation pathways, our study provides a mechanistic framework linking plant functional traits to ecosystem carbon regulation in alpine ecosystems. These insights highlight how climate-driven shifts in trait composition can restructure carbon cycling processes, offering new perspectives for trait-based prediction of ecosystem responses under global change. |
| URL标识 | 查看原文 |
| WOS关键词 | EXTRACTION METHOD ; ARCTIC TUNDRA ; NITROGEN ; LITTER ; MATTER ; DECOMPOSITION ; FUMIGATION ; VEGETATION ; DIVERSITY ; FRAMEWORK |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001697122900001 |
| 出版者 | WILEY |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221231]  |
| 专题 | 千烟洲站森林生态系统研究中心_外文论文 |
| 通讯作者 | Zong, Shengwei |
| 作者单位 | 1.Changbai Mt Acad Sci, Yanbian, Peoples R China 2.Univ Missouri, Sch Nat Resources, Columbia, MO USA; 3.Swiss Fed Inst Technol, Inst Terr Ecosyst, Zurich, Switzerland; 4.Swiss Fed Inst Forest Snow & Landscape Res WSL, Forest Dynam, Birmensdorf, Switzerland; 5.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Heilongjiang Xingkai Lake Wetland Ecosyst Natl Obs, Changchun, Jilin, Peoples R China; 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Qianyanzhou Ecol Res Stn, Beijing, Peoples R China; 7.Northeast Normal Univ, Sch Geog Sci, Key Lab Geog Proc & Ecol Secur Changbai Mt, Minist Educ, Changchun, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wang, Kunwei,Gao, Decai,Zhong, Zhiwei,et al. Shifts in plant ecological strategies drive divergent soil organic carbon stock in alpine ecosystems[J]. JOURNAL OF ECOLOGY,2026,114(2):e70270. |
| APA | Wang, Kunwei.,Gao, Decai.,Zhong, Zhiwei.,Li, Mai-He.,Gessler, Arthur.,...&Zong, Shengwei.(2026).Shifts in plant ecological strategies drive divergent soil organic carbon stock in alpine ecosystems.JOURNAL OF ECOLOGY,114(2),e70270. |
| MLA | Wang, Kunwei,et al."Shifts in plant ecological strategies drive divergent soil organic carbon stock in alpine ecosystems".JOURNAL OF ECOLOGY 114.2(2026):e70270. |
入库方式： OAI收割
来源：地理科学与资源研究所
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