Effects of permafrost collapse on soil bacterial communities in a wet meadow on the northern Qinghai-Tibetan Plateau
文献类型：期刊论文
| 作者 | Wu, Xiaodong1; Xu, Haiyan2; Liu, Guimin2; Zhao, Lin1; Mu, Cuicui3 |
| 刊名 | BMC ECOLOGY
 |
| 出版日期 | 2018-08-22 |
| 卷号 | 18页码:11 |
| 关键词 | Permafrost degradation Thermokarst Relative abundance Organic carbon Depth Illumina sequencing |
| ISSN号 | 1472-6785 |
| DOI | 10.1186/s12898-018-0183-y |
| 通讯作者 | Wu, Xiaodong(wuxd@lzb.ac.cn) |
| 英文摘要 | Background: Permafrost degradation may develop thermokarst landforms, which substantially change physicochemical characteristics in the soil as well as the soil carbon stock. However, little is known about changes of bacterial community among the microfeatures within thermokarst area. Results: We investigated bacterial communities using the Illumina sequencing method and examined their relationships with soil parameters in a thermokarst feature on the northern Qinghai-Tibetan Plateau. We categorized the ground surface into three different micro-relief patches based on the type and extent of permafrost collapse (control, collapsing and subsided areas). Permafrost collapse significantly decreased the soil carbon density and moisture content in the upper 10 cm samples in the collapsing areas. The highest loading factors for the first principal component (PC) extracted from the soil parameters were soil carbon and nitrogen contents, while soil moisture content and C:N ratios were the highest loading factors for the second PC. The relative abundance of Acidobacteria decreased with depth. Bacterial diversity in subsided areas was higher than that in control areas. Conclusions: Bacterial community structure was significantly affected by pH and depth. The relative abundance of Gemmatimonadetes and Firmicutes were significantly correlated with the first and second PCs extracted from multiple soil parameters, suggesting these phyla could be used as indicators for the soil parameters in the thermokarst terrain. |
| 收录类别 | SCI |
| WOS关键词 | DISSOLVED ORGANIC-CARBON ; CLIMATE-CHANGE ; PH ; THAW ; NITROGEN ; REGIONS ; TUNDRA ; DIVERSITY ; MOISTURE ; ALASKA |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000442466900001 |
| 出版者 | BMC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557775 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wu, Xiaodong |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resource, State Key Lab Cryospher Sci, Cryosphere Res Stn Qinghai Tibetan Plateau, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Jiaotong Univ, Sch Environm & Municipal Engn, Lanzhou 730070, Gansu, Peoples R China 3.Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Xiaodong,Xu, Haiyan,Liu, Guimin,et al. Effects of permafrost collapse on soil bacterial communities in a wet meadow on the northern Qinghai-Tibetan Plateau[J]. BMC ECOLOGY,2018,18:11. |
| APA | Wu, Xiaodong,Xu, Haiyan,Liu, Guimin,Zhao, Lin,&Mu, Cuicui.(2018).Effects of permafrost collapse on soil bacterial communities in a wet meadow on the northern Qinghai-Tibetan Plateau.BMC ECOLOGY,18,11. |
| MLA | Wu, Xiaodong,et al."Effects of permafrost collapse on soil bacterial communities in a wet meadow on the northern Qinghai-Tibetan Plateau".BMC ECOLOGY 18(2018):11. |
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来源：寒区旱区环境与工程研究所
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