Soil Acidification Under Long-Term N Addition Decreases the Diversity of Soil Bacteria and Fungi and Changes Their Community Composition in a Semiarid Grassland
文献类型：期刊论文
| 作者 | Song, Bing; Li, Yong1; Yang, Liuyi3; Shi, Huiqiu3; Li, Linghao3 ; Bai, Wenming3; Zhao, Ying
|
| 刊名 | MICROBIAL ECOLOGY
 |
| 出版日期 | 2023 |
| 卷号 | 85期号:1页码:221-231 |
| 关键词 | Nitrogen deposition Soil microorganism Bacterial diversity Fungal diversity Community composition Temperate steppe |
| ISSN号 | 0095-3628 |
| DOI | 10.1007/s00248-021-01954-x |
| 文献子类 | Article |
| 英文摘要 | Soil microorganisms play key roles in terrestrial biogeochemical cycles and ecosystem functions. However, few studies address how long-term nitrogen (N) addition gradients impact soil bacterial and fungal diversity and community composition simultaneously. Here, we investigated soil bacterial and fungal diversity and community composition based on a long-term (17 years) N addition gradient experiment (six levels: 0, 2, 4, 8, 16, 32 gN m(-2) year(-1)) in temperate grassland, using the high-throughput Illumina MiSeq sequencing. Results showed that both soil bacterial and fungal alpha diversity responded nonlinearly to the N input gradient and reduced drastically when the N addition rate reached 32 g N m(-2) year(-1). The relative abundance of soil bacterial phyla Proteobacteria increased and Acidobacteria decreased significantly with increasing N level. In addition, the relative abundance of bacterial functional groups associated with aerobic ammonia oxidation, aerobic nitrite oxidation, nitrification, respiration of sulfate and sulfur compounds, and chitinolysis significantly decreased under the highest N addition treatment. For soil fungi, the relative abundance of Ascomycota increased linearly along the N enrichment gradient. These results suggest that changes in soil microbial community composition under elevated N do not always support the copiotrophic-oligotrophic hypothesis, and some certain functional bacteria would not simply be controlled by soil nutrients. Further analysis illustrated that reduced soil pH under N addition was the main factor driving variations in soil microbial diversity and community structure in this grassland. Our findings highlight the consistently nonlinear responses of soil bacterial and fungal diversity to increasing N input and the significant effects of soil acidification on soil microbial communities, which can be helpful for the prediction of underground ecosystem processes in light of future rising N deposition. |
| 学科主题 | Ecology ; Marine & Freshwater Biology ; Microbiology |
| 出版地 | NEW YORK |
| 电子版国际标准刊号 | 1432-184X |
| WOS关键词 | NITROGEN-FERTILIZATION ; MICROBIAL COMMUNITIES ; DIFFERENTIAL RESPONSES ; BIOMASS ; CARBON ; PLANT ; PH ; AVAILABILITY ; METAANALYSIS ; ENRICHMENT |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000743846200002 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China [31800403, 41977009, 41977039] ; Natural Science Foundation of Shandong Province [ZR2020QD115] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/29089]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Chinese Acad Forestry, Inst Wetland Res, Beijing Key Lab Wetland Serv & Restorat, Beijing 100091, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Bing,Li, Yong,Yang, Liuyi,et al. Soil Acidification Under Long-Term N Addition Decreases the Diversity of Soil Bacteria and Fungi and Changes Their Community Composition in a Semiarid Grassland[J]. MICROBIAL ECOLOGY,2023,85(1):221-231. |
| APA | Song, Bing.,Li, Yong.,Yang, Liuyi.,Shi, Huiqiu.,Li, Linghao.,...&Zhao, Ying.(2023).Soil Acidification Under Long-Term N Addition Decreases the Diversity of Soil Bacteria and Fungi and Changes Their Community Composition in a Semiarid Grassland.MICROBIAL ECOLOGY,85(1),221-231. |
| MLA | Song, Bing,et al."Soil Acidification Under Long-Term N Addition Decreases the Diversity of Soil Bacteria and Fungi and Changes Their Community Composition in a Semiarid Grassland".MICROBIAL ECOLOGY 85.1(2023):221-231. |
入库方式： OAI收割
来源：植物研究所
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