Can sustained climate warming intensify the carbon source potential of saline lakes on the Qingzang Plateau?
文献类型：期刊论文
| 作者 | Shen, Di2,3; Gao, Yang1,4; Wang, Yafeng2; Jia, Junjie1,4 |
| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
 |
| 出版日期 | 2025-11-01 |
| 卷号 | 394页码:127533 |
| 关键词 | Ecosystem metabolism Saline lakes Qingzang Plateau Climate warming Carbon source |
| ISSN号 | 0301-4797 |
| DOI | 10.1016/j.jenvman.2025.127533 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Under global climate change intensification, the debate over whether high-altitude saline lakes act as carbon (C) emission sinks or sources remains unresolved. Moreover, there is currently a lack of systematic metabolic and mechanistic C assessments for saline lake ecosystems on the Qingzang Plateau (QZP), especially regarding their associative changes under climate change. Here, we used 18/16O technology and regression models to assess saline lake C metabolism on the QZP between 2000 and 2020. Additionally, we predicted the C metabolism of these lakes between 2030 and 2050 under three future scenario models: SSP126, SSP245, and SSP585. Results showed that saline lakes on the QZP have long acted as C sources. The average annual GPP of these lakes is 12.26 +/- 0.23 g O2 m-2 d-1, the average annual ER is 23.96 +/- 0.46 g O2 m-2 d-1, and the average annual NEP is-11.70 +/- 0.22 g O2 m-2 d-1. Higher temperatures, wind speeds, and total nitrogen (TN) concentrations in low-altitude saline lakes collectively promote GPP and ER. Between 2000 and 2020, under increases in temperature, surface pressure, wind speed, and TN, both GPP and ER significantly increased while NEP significantly decreased. Between 2030 and 2050, GPP and ER will gradually increase under the three future scenario models while NEP will decrease. However, under the SSP126 scenario, saline lakes on the QZP will emit the least amount of atmospheric carbon dioxide (CO2). These findings not only enhance our understanding of aquatic plateau C cycling processes but also provide a theoretical basis for the future C management of saline lakes on the QZP. |
| URL标识 | 查看原文 |
| WOS关键词 | RIVER ECOSYSTEM METABOLISM ; TEMPERATURE-DEPENDENCE ; TIBETAN PLATEAU ; NITROGEN ; LEVEL ; WATER |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001597583400001 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217513]  |
| 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 | Jia, Junjie |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China; 2.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Environm, Beijing 100101, Peoples R China; 3.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China; 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Di,Gao, Yang,Wang, Yafeng,et al. Can sustained climate warming intensify the carbon source potential of saline lakes on the Qingzang Plateau?[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2025,394:127533. |
| APA | Shen, Di,Gao, Yang,Wang, Yafeng,&Jia, Junjie.(2025).Can sustained climate warming intensify the carbon source potential of saline lakes on the Qingzang Plateau?.JOURNAL OF ENVIRONMENTAL MANAGEMENT,394,127533. |
| MLA | Shen, Di,et al."Can sustained climate warming intensify the carbon source potential of saline lakes on the Qingzang Plateau?".JOURNAL OF ENVIRONMENTAL MANAGEMENT 394(2025):127533. |
入库方式： OAI收割
来源：地理科学与资源研究所
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