KMS Institute of soil and water conservation Chinese Academy of Sciences
| Differential soil microbial community responses to the linkage of soil organic carbon fractions with respiration across land-use changes | |
| Ren, Chengjie1,2; Wang, Tao2,3; Xu, Yadong2,3; Deng, Jian4; Zhao, Fazhu5; Yang, Gaihe2,3; Han, Xinhui1,2; Feng, Yongzhong2,3; Ren, Guangxin2,3; Yang, GH; Han, XH (reprint author), Northwest A&F Univ, Coll Agron, Yangling 712100, Shaanxi, Peoples R China. | |
| 文章类型 | Article |
| 2018 | |
| 发表期刊 | FOREST ECOLOGY AND MANAGEMENT
 |
| ISSN | 0378-1127 |
| 通讯作者邮箱 | ygh@nwsuaf.edu.cn ; hanxinhui@nwsuaf.edu.cn |
| 卷号 | 409页码:170-178 |
| 摘要 | Land-use change can modify terrestrial ecosystem processes with potentially important effects on below-ground carbon dynamics. Soil microbes are considered the rate-limiting factor in carbon decomposition. However, the effect of land-use change on soil microbial community and the mechanism of soil carbon dynamics remain unclear. In this study, soil samples were collected during four periods (April, June, August, and October) at sites in the Loess Plateau in China with different land-use types: Robinia pseudoacacia L. (RP) and abandoned land (AL); these areas were converted 40 years ago from similar farmlands, while the millet (Setaria italica) farmlands (FL) were selected as a control in our study. Quantitative PCR and Illumina sequencing of the 16S rRNA and ITS genes were performed to analyze the abundance, diversity, and compositions of the soil microbes (bacteria and fungi). Additionally, soil organic carbon fractions (soil organic carbon: SOC, dissolved organic carbon: DOC, microbial biomass carbon: MBC) and soil respiration components (soil respiration: SR, heterotrophic respiration: HR, autotrophic respiration: AR) were evaluated. The results showed that SOC fractions and soil respiration increased after land-use change, with significant correlation being observed. In particular, DOC was more related to SR and HR than to the other fractions. Moreover, the abundance and diversity of the microbes (bacteria and fungi) were greatly affected by the land-use change; both of them were significantly and positively correlated with soil organic carbon fractions and soil respiration components. For dominant bacterial phyla, both Proteobacteria and Bacteroidetes were significantly more abundant in the afforested soil than in the FL, while the abundances of Actinobacteria and Chloroflexi ranked as FL > AL > RP. For dominant fungal phyla, Ascomycota responded positively to land-use changes, whereas Basidiomycota responded negatively. Such changes in the abundances of microbial phyla were significantly correlated with the linkage of soil organic carbon fractions and respiration components. Altogether, these results suggest that the changes in components of soil respiration may be highly susceptible to soil organic carbon fractions, especially to DOC, and this linkage is largely modulated by microbial community across land-use changes. |
| 关键词 | Land-use Changes Afforested Ecosystem Illumina Sequencing Soil Microbial Community Soil Respiration Components Dissolved Organic Carbon |
| 学科领域 | Forestry |
| DOI | 10.1016/j.foreco.2017.11.011 |
| 收录类别 | SCI |
| 出版地 | PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| 语种 | 英语 |
| WOS记录号 | WOS:000425578000017 |
| 出版者 | ELSEVIER SCIENCE BV |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | sbir.nwafu.edu.cn/handle/361005/7844 |
| 专题 | 水保所科研产出--SCI_2018--SCI |
| 通讯作者 | Yang, GH; Han, XH (reprint author), Northwest A&F Univ, Coll Agron, Yangling 712100, Shaanxi, Peoples R China. |
| 作者单位 | 1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Forming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, Coll Agron, Yangling 712100, Shaanxi, Peoples R China 3.Res Ctr Recycle Agr Engn & Technol Shaanxi Prov, Yangling 712100, Shaanxi, Peoples R China 4.Yanan Univ, Coll Life Sci, Yanan 716000, Shaanxi, Peoples R China 5.Northwest Univ, Coll Urban & Environm Sci, Xian 710072, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Chengjie,Wang, Tao,Xu, Yadong,et al. Differential soil microbial community responses to the linkage of soil organic carbon fractions with respiration across land-use changes[J]. FOREST ECOLOGY AND MANAGEMENT,2018,409:170-178. |
| APA | Ren, Chengjie.,Wang, Tao.,Xu, Yadong.,Deng, Jian.,Zhao, Fazhu.,...&Han, XH .(2018).Differential soil microbial community responses to the linkage of soil organic carbon fractions with respiration across land-use changes.FOREST ECOLOGY AND MANAGEMENT,409,170-178. |
| MLA | Ren, Chengjie,et al."Differential soil microbial community responses to the linkage of soil organic carbon fractions with respiration across land-use changes".FOREST ECOLOGY AND MANAGEMENT 409(2018):170-178. |
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| 19（2018.3.16）.pdf（1111KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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