Tree species-specific strategies of soil aggregation driven by SOC-GRSP coupling under nitrogen addition and precipitation reduction
文献类型：期刊论文
| 作者 | Zhou, Mingxin1; Li, Yibo3; Liu, Wei4; Jia, Chao1; Hao, Jiantao2 |
| 刊名 | PLOS ONE
 |
| 出版日期 | 2026-01-21 |
| 卷号 | 21期号:1页码:e0341117 |
| DOI | 10.1371/journal.pone.0341117 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Soil structural stability underpins ecosystem function, yet how nitrogen (N) enrichment and precipitation reduction jointly regulate glomalin-related soil proteins (GRSP) and aggregate formation in temperate forests remains poorly understood. This knowledge gap limits predictions of soil carbon persistence under global change. A factorial field experiment was conducted in an old-growth temperate forest with four treatments (CK, + N, -P, + N-P) across three dominant tree species. Rhizosphere soils were analyzed for total and easily extractable GRSP (T-GRSP, EE-GRSP), aggregate-size distribution, and physicochemical properties. Random forest modeling and structural equation modeling (SEM) were used to identify key regulatory pathways. N addition significantly increased EE-GRSP (3.92-5.74 mg g (-) (1)) and macroaggregates (4-8 mm: 21.6%-34.8%), while precipitation reduction reduced EE-GRSP (by 36.5%) and increased microaggregates (0.053-0.25 mm: + 29.3%). soil organic carbon (SOC) was strongly and positively correlated with EE-GRSP (R-2 = 0.69-0.63), T-GRSP (R-2 = 0.82-0.77), MWD (R-2 = 0.85-0.67), and GMD (R-2 = 0.84-0.72). Random forest identified EE-GRSP and SOC as dominant predictors of aggregate stability. SEM revealed that SOC regulated GRSP and MWD through NH4 (+) -N and SWC (Fig. 2-5). Our findings highlight a coupled carbon-protein-structure pathway in regulating soil aggregation. The regulatory effects of N and water are both species-specific and pathway-integrated, emphasizing the role of SOC-mediated GRSP dynamics in sustaining soil physical integrity under climate perturbations. |
| URL标识 | 查看原文 |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001677230000013 |
| 出版者 | PUBLIC LIBRARY SCIENCE |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221028]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Li, Yibo |
| 作者单位 | 1.Heilongjiang Inst Construct Technol, Harbin, Peoples R China; 2.Heilongjiang Polytech, Harbin, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China; 4.Heilongjiang Vocat Inst Ecol Engn, Harbin, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhou, Mingxin,Li, Yibo,Liu, Wei,et al. Tree species-specific strategies of soil aggregation driven by SOC-GRSP coupling under nitrogen addition and precipitation reduction[J]. PLOS ONE,2026,21(1):e0341117. |
| APA | Zhou, Mingxin,Li, Yibo,Liu, Wei,Jia, Chao,&Hao, Jiantao.(2026).Tree species-specific strategies of soil aggregation driven by SOC-GRSP coupling under nitrogen addition and precipitation reduction.PLOS ONE,21(1),e0341117. |
| MLA | Zhou, Mingxin,et al."Tree species-specific strategies of soil aggregation driven by SOC-GRSP coupling under nitrogen addition and precipitation reduction".PLOS ONE 21.1(2026):e0341117. |
入库方式： OAI收割
来源：地理科学与资源研究所
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