Unraveling four decades of soil acidification on the Qinghai-Tibetan Plateau: Patterns, drivers, and future projections
文献类型：期刊论文
| 作者 | Wu, Wenjuan1,2,3,4; Zhao, Guang3,4; Zheng, Zhoutao3,4; Cai, Mengke3,4; Zhang, Yangjian1,3,4,5 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2025-06-15 |
| 卷号 | 375页码:126324 |
| 关键词 | Soil acidification Precipitation Alpine grasslands Spatial pattern Temporal dynamic |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2025.126324 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Soil acidification poses escalating threats to ecosystem functions, yet its spatiotemporal dynamics and drivers across vulnerable high-altitude regions remain poorly resolved. Here, we integrate four-decade soil surveys (1980s-2020s) with machine learning to unravel acidification trajectories and future projections for the Qinghai-Tibetan Plateau (QTP), a critical yet fragile alpine ecosystem. Our analyses reveal pronounced east-west divergence: persistent acidification dominates eastern alpine meadow grasslands (lower pH, negative Delta pH), constrasting with alkalization trends in western steppe grasslands (higher pH, positive Delta pH). Temporally, soil acidification accelerated over decades, evidenced by decling pH of 7.95 in the 1980s to 7.90 in the 2020s, and increasingly negative Delta pH of-0.02 during 1980s-2000s to-0.03 during 2000s-2020s. Vertical stratification highlights surface-layer vulnerability, with the most rapid pH decline in top-surface layer and maximum acidification Delta pH magnitude in middle-surface layer. Key drivers include mean annual precipitation, aboveground gross primary productivity, and nitrogen deposition. All inversely correlated with pH. Future projections under different scenarios predict accelerated acidification, most serve underSSP5-8.5 and moderated under SSP1-1.9. These findings highlight the vulnerability of QTP grasslands to multifactorial acidification, urging targeted mitigation strategies to preserve this ecologically pivotal region. |
| URL标识 | 查看原文 |
| WOS关键词 | ORGANIC-CARBON ; NITROGEN ; DEPOSITION ; POLLUTION ; CAPACITY ; MATTER |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001508688100001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/214613]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Zhang, Yangjian |
| 作者单位 | 1.Hebei Univ, Sch Life Sci, Baoding 071002, Hebei, Peoples R China; 2.Chinese Acad Sci, Inst Bot, Key Lab Vegetat & Environm Change, Beijing 100093, 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; 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China; 5.Univ Copenhagen, Dept Geosci & Nat Resource Management, DK-1350 Copenhagen, Denmark |
| 推荐引用方式 GB/T 7714 | Wu, Wenjuan,Zhao, Guang,Zheng, Zhoutao,et al. Unraveling four decades of soil acidification on the Qinghai-Tibetan Plateau: Patterns, drivers, and future projections[J]. ENVIRONMENTAL POLLUTION,2025,375:126324. |
| APA | Wu, Wenjuan,Zhao, Guang,Zheng, Zhoutao,Cai, Mengke,&Zhang, Yangjian.(2025).Unraveling four decades of soil acidification on the Qinghai-Tibetan Plateau: Patterns, drivers, and future projections.ENVIRONMENTAL POLLUTION,375,126324. |
| MLA | Wu, Wenjuan,et al."Unraveling four decades of soil acidification on the Qinghai-Tibetan Plateau: Patterns, drivers, and future projections".ENVIRONMENTAL POLLUTION 375(2025):126324. |
入库方式： OAI收割
来源：地理科学与资源研究所
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