Soil depth modulates microbial communities in citrus orchards of the subtropical red soil region: From life-history strategies to ecological functional potentials
文献类型：期刊论文
| 作者 | Zhu, Jinjin1,4,5; Tang, Chongjun1,4,5; Hu, You1,4,5; Liu, Yu2,3 |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2025-09-20 |
| 卷号 | 525页码:146600 |
| 关键词 | Subtropical hilly region Citrus orchard Amplicon sequencing Soil depth profile Microbial community |
| ISSN号 | 0959-6526 |
| DOI | 10.1016/j.jclepro.2025.146600 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | As the primary drivers of subsurface ecosystems, soil microorganisms play critical regulatory roles in orchard ecological services through their life-history strategies and functional potentials. Current research has predominantly focused on plain ecosystems, whereas the vertical stratification patterns and underlying mechanisms that shape microbial communities in mountainous citrus orchards have not been adequately investigated. In this study, high-throughput sequencing, functional prediction, and bioinformatic analyses were used to systematically investigate the diversity and compositional shifts of bacteria and fungi across a 0-100 cm soil depth profile. The vertical stratification in life-history strategies and functional potentials were quantitatively assessed. The results indicated that the bacterial alpha-diversity decreased significantly with soil depth. Surface soils (0-20 cm) were enriched in r-strategists, particularly Actinobacteria and Firmicutes (combined relative abundance: 25 %). By contrast, subsoils (>50 cm) were dominated by K-strategists, primarily Proteobacteria (relative abundance: 10 %), whose metabolic plasticity enables adaptation to oligotrophic and hypoxic conditions. Fungal communities exhibited marked vertical differentiation, with surface layers dominated by Ascomycota and Fusarium (potentially linked to citrus greening disease; combined abundance: 40 %) and subsoils by Basidiomycota, leveraging lignin-degrading capabilities. Functional predictions revealed approximately 1.5-fold higher nitrification and ammonia oxidation capacities in surface soils than in deeper strata. Conversely, subsoils were approximately 1.2-fold more enriched in aromatic compound degradation pathways. Redundancy analysis and structural equation modeling confirmed soil organic matter and total nitrogen as the primary drivers of vertical carbon-nitrogen cycling through microbial r/K selection and metabolic potential regulation. Overall, our findings provide a reference basis for optimizing orchard soil management practices and highlight the need to develop precision agriculture-related strategies tailored to the vertical stratification of soil microbial communities according to their functional capabilities, thereby achieving the ultimate goal of improving orchard ecosystem sustainability within red soil regions. |
| URL标识 | 查看原文 |
| WOS关键词 | BACTERIA |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001572957300006 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/216051]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Tang, Chongjun |
| 作者单位 | 1.Jiangxi Prov Technol Innovat Ctr Ecol Water Engn P, Nanchang 330029, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, 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.Jiangxi Key Lab Watershed Soil & Water Conservat, Nanchang 330029, Peoples R China; 5.Jiangxi Acad Water Sci & Engn, Nanchang 330029, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhu, Jinjin,Tang, Chongjun,Hu, You,et al. Soil depth modulates microbial communities in citrus orchards of the subtropical red soil region: From life-history strategies to ecological functional potentials[J]. JOURNAL OF CLEANER PRODUCTION,2025,525:146600. |
| APA | Zhu, Jinjin,Tang, Chongjun,Hu, You,&Liu, Yu.(2025).Soil depth modulates microbial communities in citrus orchards of the subtropical red soil region: From life-history strategies to ecological functional potentials.JOURNAL OF CLEANER PRODUCTION,525,146600. |
| MLA | Zhu, Jinjin,et al."Soil depth modulates microbial communities in citrus orchards of the subtropical red soil region: From life-history strategies to ecological functional potentials".JOURNAL OF CLEANER PRODUCTION 525(2025):146600. |
入库方式： OAI收割
来源：地理科学与资源研究所
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