Distributions and drivers of soil organic carbon on the Tibetan Plateau: divergent controls across ecosystems
文献类型：期刊论文
| 作者 | Hu, Zhigang1,2,3; Svenning, Jens-Christian1; Tang, Jiwang2,3; Cheng, Yue1; Ma, Fangfang4; Wu, Wanben1; Ni, Ming1; Yang, Yingbo1; Zhang, Xianzhou2,3; Niu, Ben2,3 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2025-10-02 |
| 卷号 | N/A |
| 关键词 | Soil organic carbon Spatial distribution Driving factors Random Forest Tibetan Plateau |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-025-07845-1 |
| 产权排序 | 1 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Background and aimsThe Tibetan Plateau (TP), a vast alpine region rich in soil organic carbon (SOC),plays a crucial role in the regional carbon cycle and climate mitigation. This study aimed to quantify the spatial distribution and environmental drivers of SOC density (SOCD) across the TP.MethodsUsing 1,561 soil samples, we mapped SOCD at 1 km resolution across 0-200 cm depth with validated Random Forest (RF) models. Twenty-six environmental variables were analyzed, with correlation analysis and Structural Equation Modeling (SEM) used to identify their influence on SOCD.ResultsSOCD decreased from east to west and south to north, ranging from 14.96 kg C m(-)2 in western steppes to 29.54 kg C m(-)2 in eastern forests (0-200 cm). SOCD exhibited a nonlinear vertical distribution, increasing in topsoil (0-20 cm) and decreasing with depth in subsoil (20-200 cm). SOCD was highest in wetlands, followed by forests, meadows, shrublands, and steppes. SOCD was influenced by multiple interacting environmental factors, primarily through their effects on plant productivity and soil respiration.ConclusionsThis study highlights the ecosystem-specific mechanisms regulating SOCD. Forests are characterized by carbon loss through respiration, while grasslands and other ecosystems are characterized by greater reliance on plant-derived carbon inputs. These divergent processes show how ecosystem type shapes carbon dynamics, highlighting the need for differentiated approaches in modeling soil carbon-climate feedbacks, supporting accurate carbon modeling and ecosystem-specific carbon management strategies under climate change. |
| URL标识 | 查看原文 |
| WOS关键词 | NET PRIMARY PRODUCTIVITY ; CLIMATE-CHANGE ; TEMPERATURE SENSITIVITY ; VEGETATION ; IMPACTS ; MOISTURE ; NITROGEN ; DECOMPOSITION ; RESPIRATION ; STORAGE |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001585467000001 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217523]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Zhang, Xianzhou; Niu, Ben |
| 作者单位 | 1.Aarhus Univ, Ctr Ecol Dynam Novel Biosphere ECONOVO, Dept Biol, Aarhus, Denmark; 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China; 4.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Zhigang,Svenning, Jens-Christian,Tang, Jiwang,et al. Distributions and drivers of soil organic carbon on the Tibetan Plateau: divergent controls across ecosystems[J]. PLANT AND SOIL,2025,N/A. |
| APA | Hu, Zhigang.,Svenning, Jens-Christian.,Tang, Jiwang.,Cheng, Yue.,Ma, Fangfang.,...&Niu, Ben.(2025).Distributions and drivers of soil organic carbon on the Tibetan Plateau: divergent controls across ecosystems.PLANT AND SOIL,N/A. |
| MLA | Hu, Zhigang,et al."Distributions and drivers of soil organic carbon on the Tibetan Plateau: divergent controls across ecosystems".PLANT AND SOIL N/A(2025). |
入库方式： OAI收割
来源：地理科学与资源研究所
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