Grazing Intensity Modifies Soil Microbial Diversity and Their Co-Occurrence Networks in an Alpine Steppe, Central Tibet
文献类型：期刊论文
| 作者 | Xiang, Mingxue1,3; Liang, Zepeng5; Zhang, Yanjie4; Wu, Junxi1,5; Ma, Tao3; Duo, Lha5; Zhang, Xianzhou1,2; Fu, Gang1 |
| 刊名 | MICROORGANISMS
 |
| 出版日期 | 2025 |
| 卷号 | 13期号:1页码:138 |
| 关键词 | alpine grassland co-occurrence network diversity of bacteria and fungi grazing intensity Tibet |
| DOI | 10.3390/microorganisms13010138 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Grazing intensity is one of the crucial anthropogenic activities on alpine grasslands. However, how grazing intensity affects soil microorganism diversities and their co-occurrence networks in alpine steppe remains uncertain. We carried out a controlled grazing experiment (null grazing, CK; moderate grazing, MG; and heavy grazing, HG) on a typical alpine steppe in the Lhasa River Basin, Central Tibet, China. We used high-throughput sequencing to find the sequences of bacterial 16S rRNA and fungal ITS gene amplicons. Then, we analyzed their alpha and beta diversities and set up co-occurrence networks that show how often they occur together. MG significantly increased the bacterial Shannon index and changed the bacterial community structure. In contrast, HG decreased the fungal ACE and Chao1 indices and also changed the fungal community structure (p < 0.05). Linear mixed-effect model revealed that available phosphorus in soil significantly impacted on soil bacterial Shannon, ACE, and Chao1 indices across grazing intensities, while total carbon in subsoil significantly affected these indicators of soil fungi. Moreover, MG increased the complexity of the co-occurrence network in the bacterial community, while HG simplified it. However, both MG and HG made the co-occurrence networks in the fungal community less complicated. This shows that the intensity of grazing has different impacts on how microbes interact with each other. Therefore, sustainable grazing intensity necessitates a deeper understanding of biodiversity conservation in alpine grasslands. |
| URL标识 | 查看原文 |
| WOS关键词 | BACTERIAL DIVERSITY ; COMMUNITY STRUCTURE ; PLANT ; RESPONSES ; GRADIENTS ; LINKAGES ; PATTERNS ; PLATEAU |
| WOS研究方向 | Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:001405911000001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/211344]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Wu, Junxi; Zhang, Xianzhou |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China; 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 101408, Peoples R China 3.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810016, Peoples R China; 4.Dali Univ, Coll Agr & Biol Sci, Dali 671003, Peoples R China; 5.Tibet Univ, Sch Sci, Lhasa 850011, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Xiang, Mingxue,Liang, Zepeng,Zhang, Yanjie,et al. Grazing Intensity Modifies Soil Microbial Diversity and Their Co-Occurrence Networks in an Alpine Steppe, Central Tibet[J]. MICROORGANISMS,2025,13(1):138. |
| APA | Xiang, Mingxue.,Liang, Zepeng.,Zhang, Yanjie.,Wu, Junxi.,Ma, Tao.,...&Fu, Gang.(2025).Grazing Intensity Modifies Soil Microbial Diversity and Their Co-Occurrence Networks in an Alpine Steppe, Central Tibet.MICROORGANISMS,13(1),138. |
| MLA | Xiang, Mingxue,et al."Grazing Intensity Modifies Soil Microbial Diversity and Their Co-Occurrence Networks in an Alpine Steppe, Central Tibet".MICROORGANISMS 13.1(2025):138. |
入库方式： OAI收割
来源：地理科学与资源研究所
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