Hydrology, vegetation, and soil properties as key drivers of soil organic carbon in coastal wetlands: A high-resolution study
文献类型：期刊论文
| 作者 | Guo, Mao1,4,5; Yang, Lin1,3,5; Zhang, Lei5; Shen, Feixue5; Meadows, Michael E.2,5; Zhou, Chenghu1,4,5 |
| 刊名 | ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY
 |
| 出版日期 | 2025 |
| 卷号 | 23页码:100482 |
| 关键词 | Coastal wetlands Hydrological factors Soil carbon stock Blue carbon |
| DOI | 10.1016/j.ese.2024.100482 |
| 产权排序 | 5 |
| 英文摘要 | Coastal wetlands are important blue carbon ecosystems that play a significant role in the global carbon cycle. However, there is insufficient understanding of the variations in soil organic carbon (SOC) stocks and the mechanisms driving these ecosystems. Here we analyze a comprehensive multi-source dataset of SOC in topsoil (0-20 cm) and subsoil (20-100 cm) across 31 coastal wetlands in China to identify the factors influencing their distribution. Structural equation models (SEMs) reveal that hydrology has the greatest overall effect on SOC in both soil layers, followed by vegetation, soil properties, and climate. Notably, the mechanisms driving SOC density differ between the two layers. In topsoil, vegetation type and productivity directly impact carbon density as primary sources of carbon input, while hydrology, primarily through seawater salinity, exerts the largest indirect influence. Conversely, in subsoil, hydrology has the strongest direct effect on SOC, with seawater salinity also influencing SOC indirectly through soil and vegetation mediation. Soil properties, particularly pH, negatively affect carbon accumulation, while climate influences SOC indirectly via its effects on vegetation and soil, with a diminishing impact at greater depths. Using Random Forest, we generate high-resolution maps (90 m x 90 m) of topsoil and subsoil carbon density (R-2 of 0.53 and 0.62, respectively), providing the most detailed spatial distribution of SOC in Chinese coastal wetlands to date. Based on these maps, we estimate that SOC storage to a depth of 1 m in Chinese coastal wetlands totals 74.58 +/- 3.85 Tg C, with subsoil carbon storage being 2.5 times greater than that in topsoil. These findings provide important insights into mechanism on driving spatial pattern of blue carbon and effective ways to assess carbon status on a national scale, thus contributing to the advancement of global blue carbon monitoring and management. (c) 2024 The Authors. Published by Elsevier B.V. on behalf of Chinese Society for Environmental Sciences, Harbin Institute of Technology, Chinese Research Academy of Environmental Sciences. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| WOS关键词 | SPATIAL-DISTRIBUTION ; BLUE CARBON ; STORAGE ; CLIMATE ; ACCUMULATION ; CHINA |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:001315959400001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/208233]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Yang, Lin |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Meadows, Michael E.] Univ Cape Town, Dept Environm & Geog Sci, ZA-7701 Rondebosch, South Africa 3.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, Nanjing 210023, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China 5.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Mao,Yang, Lin,Zhang, Lei,et al. Hydrology, vegetation, and soil properties as key drivers of soil organic carbon in coastal wetlands: A high-resolution study[J]. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY,2025,23:100482. |
| APA | Guo, Mao,Yang, Lin,Zhang, Lei,Shen, Feixue,Meadows, Michael E.,&Zhou, Chenghu.(2025).Hydrology, vegetation, and soil properties as key drivers of soil organic carbon in coastal wetlands: A high-resolution study.ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY,23,100482. |
| MLA | Guo, Mao,et al."Hydrology, vegetation, and soil properties as key drivers of soil organic carbon in coastal wetlands: A high-resolution study".ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 23(2025):100482. |
入库方式： OAI收割
来源：地理科学与资源研究所
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