Depth-dependent stabilization mechanisms of soil organic carbon and total nitrogen in different mixed modes of subtropical Moso bamboo forests
文献类型：期刊论文
| 作者 | Yan, Lingyuan2; Gao, Decai1,2,3,4; Wang, Huimin1,2,3; Meng, Shengwang1,2,3,4; Lin, Gang1,2; Fu, Jingying1,2 |
| 刊名 | FRONTIERS IN MICROBIOLOGY
 |
| 出版日期 | 2025-11-12 |
| 卷号 | 16页码:1671811 |
| 关键词 | Moso bamboo soil microorganisms enzyme activity mixed-species forests soil organic carbon |
| DOI | 10.3389/fmicb.2025.1671811 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Forest soils play a pivotal role in terrestrial carbon (C) sequestration and nitrogen (N) cycling, particularly in subtropical Moso bamboo (Phyllostachys edulis) forests ecosystems. While prior studies have explored soil organic carbon (SOC) and total nitrogen (TN) dynamics in bamboo systems, the depth-dependent stabilization mechanisms governing these stocks under contrasting mixed-species regimes remain unresolved, limiting predictions of long-term C/N storage. Here, we investigated SOC and TN in stratified soil samples (0-100 cm) across three forest types in southeastern China: pure Moso bamboo (Mb), mixed Moso bamboo-evergreen broadleaved (MbB), and mixed Moso bamboo-Chinese fir (Cunninghamia lanceolata) (MbF) forests. Results showed that SOC and TN stocks showed no significant differences between MbB and Mb across all soil layers (0-20, 20-40, 40-60, 60-80, and 80-100 cm) or within the entire 0-100 cm soil profile. While soils (0-100 cm) in MbB exhibited enhanced enzyme activity (beta-glucosidase: +52%; N-acetyl-glucosaminidase: +89%) and ammonium availability (+47%) compared to Mb, equivalent SOC and TN stocks across 0-100 cm profiles revealed microbial priming effects and stoichiometric constraints offsetting litter-derived C gains. In contrast, MbF displayed substantial TN depletion (-32% vs. Mb) across the entire 0-100 cm soil profile with parallel SOC/TN reductions in subsurface layers (20-40 cm: -42% SOC, -48% TN), driven by coniferous lignin inputs and microbial N mining, no significant differences were detected in the 0-20, 40-60, 60-80 or 80-100 cm layers. Vertical stratification analysis demonstrated shifting regulatory controls: microbial biomass dominated surface SOC/TN stabilization, while inorganic N dynamics and enzymatic activities controlled deeper horizons. These findings establish that SOC stability emerges from depth-specific enzyme-microbe-mineral interactions, while TN stocks reflect microbial stoichiometric adaptation to litter chemistry - critical insights for optimizing mixed-species strategies in bamboo forest management. |
| URL标识 | 查看原文 |
| WOS关键词 | EXTRACTION METHOD ; LITTER ; DIVERSITY ; SEQUESTRATION ; STOICHIOMETRY |
| WOS研究方向 | Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:001623035600001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217728]  |
| 专题 | 千烟洲站森林生态系统研究中心_外文论文 |
| 通讯作者 | Meng, Shengwang |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Qianyanzhou Ecol Res Stn, Beijing, Peoples R China; 4.Taihe Qianyanzhou Ecol Res Ctr, Jian, Jiangxi, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yan, Lingyuan,Gao, Decai,Wang, Huimin,et al. Depth-dependent stabilization mechanisms of soil organic carbon and total nitrogen in different mixed modes of subtropical Moso bamboo forests[J]. FRONTIERS IN MICROBIOLOGY,2025,16:1671811. |
| APA | Yan, Lingyuan,Gao, Decai,Wang, Huimin,Meng, Shengwang,Lin, Gang,&Fu, Jingying.(2025).Depth-dependent stabilization mechanisms of soil organic carbon and total nitrogen in different mixed modes of subtropical Moso bamboo forests.FRONTIERS IN MICROBIOLOGY,16,1671811. |
| MLA | Yan, Lingyuan,et al."Depth-dependent stabilization mechanisms of soil organic carbon and total nitrogen in different mixed modes of subtropical Moso bamboo forests".FRONTIERS IN MICROBIOLOGY 16(2025):1671811. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。