Warming Intensifies Nitrogen-Driven Destabilization of Alpine Soil-Dissolved Organic Matter
文献类型：期刊论文
| 作者 | Cao, Yi-Wen2,3,5; Zong, Ning6; Sun, Guodong2,3,5; Shang, Wenhui1; Lu, Hui-Yuan2,3,5; Liang, Xiuyu2,3,5; Zheng, Yan2,3,5; Chow, Alex Tat-Shing4; Tian, Jing1; Wang, Junjian2,3,5 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2026-03-13 |
| 卷号 | N/A |
| 关键词 | alpine grasslands carbon dynamics globalchange dissolved organic matter microbial communities |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.5c17811 |
| 产权排序 | 4 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Soils in alpine grasslands of the Qinghai-Tibet Plateau store vast carbon stocks that influence global climate, yet it is unclear how warming and nitrogen enrichment interactively regulate dissolved organic matter (DOM), the most readily degradable carbon pool. Using a 12-year field experiment, we investigated how these pressures interactively regulate DOM and microbial characteristics. Nitrogen addition substantially increased dissolved organic carbon (DOC), whereas warming exerted comparatively moderate effects. Their impacts on DOC accumulation were largely additive rather than synergistic, suggesting that resource availability constrains carbon responses under multiple global change drivers. In contrast, warming significantly amplified nitrogen-induced shifts in DOM quality, decreasing aromaticity, and increasing biolability. These changes were mediated by the expansion of copiotrophic taxa and enrichment of resource-acquisitive functional traits alongside shifts in soil chemical conditions. In turn, alterations in DOM quantity and quality were associated with shifts in microbial community structure and metabolic strategies, particularly under increased inputs of microbially derived labile substrates. Together, our findings indicate that warming intensifies nitrogen-driven acceleration of carbon turnover in alpine grasslands, highlighting the importance of climate-nutrient interactions in predicting future carbon-climate feedbacks. |
| URL标识 | 查看原文 |
| WOS关键词 | MICROBIAL COMMUNITIES ; CARBON ; CLIMATE ; DEPOSITION ; FOREST ; MINERALIZATION ; RESPIRATION ; PERSISTENCE ; MECHANISMS ; RESPONSES |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001714863400001 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221196]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Tian, Jing; Wang, Junjian |
| 作者单位 | 1.China Agr Univ, Coll Resources & Environm Sci, State Key Lab Nutrient Use & Management, Beijing 100193, Peoples R China; 2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, MEE Environm Protect Key Lab Integrated Surface Wa, Shenzhen 518055, Peoples R China; 3.Southern Univ Sci & Technol, State Key Lab Soil Pollut Control & Safety, Shenzhen 518055, Guangdong, Peoples R China; 4.Chinese Univ Hong Kong, Dept Earth & Environm Sci, Shatin, Hong Kong 999077, Peoples R China 5.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Soil & Groundwater Pollut C, Shenzhen 518055, Peoples R China; 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, MEE Key Lab Ecosyst Network Observat & Modelling, Lhasa Natl Ecol Res Stn, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Cao, Yi-Wen,Zong, Ning,Sun, Guodong,et al. Warming Intensifies Nitrogen-Driven Destabilization of Alpine Soil-Dissolved Organic Matter[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2026,N/A. |
| APA | Cao, Yi-Wen.,Zong, Ning.,Sun, Guodong.,Shang, Wenhui.,Lu, Hui-Yuan.,...&Wang, Junjian.(2026).Warming Intensifies Nitrogen-Driven Destabilization of Alpine Soil-Dissolved Organic Matter.ENVIRONMENTAL SCIENCE & TECHNOLOGY,N/A. |
| MLA | Cao, Yi-Wen,et al."Warming Intensifies Nitrogen-Driven Destabilization of Alpine Soil-Dissolved Organic Matter".ENVIRONMENTAL SCIENCE & TECHNOLOGY N/A(2026). |
入库方式： OAI收割
来源：地理科学与资源研究所
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