Nitrogen Enrichment Modulates Fine-Root Morphology and Chemistry Through Mycorrhizal Type and Functional Differentiation in Temperate Forests
文献类型：期刊论文
| 作者 | Zhou, Mingxin1; Li, Yibo1,2 |
| 刊名 | ENVIRONMENTAL ENGINEERING SCIENCE
 |
| 出版日期 | 2025-11-24 |
| 卷号 | N/A |
| 关键词 | absorptive and transport root arbuscular mycorrhizal symbiosis ectomycorrhizal symbiosis root trait plasticity soil nutrient availability |
| ISSN号 | 1092-8758 |
| DOI | 10.1177/15579018251401153 |
| 产权排序 | 2 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Anthropogenic nitrogen (N) deposition has intensified globally, yet its impact on root trait plasticity across mycorrhizal associations and root types remains poorly understood. To test how N addition differentially modulates fine-root traits via nutrient pathways and root functional differentiation, we conducted a field experiment. The study was conducted in a temperate mixed forest in northeastern China, where four nitrogen treatments (0, 25, 50, and 75 kg N ha(-)(1) yr(-)(1)) were applied to long-term experimental plots containing both arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) tree species. N addition significantly increased root N and phosphorus (P) concentrations, decreased root carbon (C)/N and C/P ratios, and enhanced specific root length and specific root surface area in absorptive and transport roots, particularly under high-N treatments. ECM roots exhibited greater plasticity and higher nutrient contents than AM roots. Soil dissolved organic N and soil total P were key drivers of AM root traits, whereas root C concentration, soil total N, and root P concentration were dominant predictors for ECM roots. Root responses were function-dependent, with contrasting regulation patterns between absorptive and transport roots. These findings demonstrate that ECM species achieve superior adaptability to N enrichment via enhanced morphological and chemical plasticity, and that root trait responses are strongly shaped by nutrient form and root functional role. This study provides a mechanistic basis for predicting forest belowground responses to N deposition under global change scenarios. |
| URL标识 | 查看原文 |
| WOS关键词 | AVAILABILITY ; GROWTH ; FUNGI |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001629567600001 |
| 出版者 | MARY ANN LIEBERT, INC |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219480]  |
| 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.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, A 11,Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Mingxin,Li, Yibo. Nitrogen Enrichment Modulates Fine-Root Morphology and Chemistry Through Mycorrhizal Type and Functional Differentiation in Temperate Forests[J]. ENVIRONMENTAL ENGINEERING SCIENCE,2025,N/A. |
| APA | Zhou, Mingxin,&Li, Yibo.(2025).Nitrogen Enrichment Modulates Fine-Root Morphology and Chemistry Through Mycorrhizal Type and Functional Differentiation in Temperate Forests.ENVIRONMENTAL ENGINEERING SCIENCE,N/A. |
| MLA | Zhou, Mingxin,et al."Nitrogen Enrichment Modulates Fine-Root Morphology and Chemistry Through Mycorrhizal Type and Functional Differentiation in Temperate Forests".ENVIRONMENTAL ENGINEERING SCIENCE 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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