Spatial heterogeneity of cyanobacteria-inoculated sand dunes significantly influences artificial biological soil crusts in the Hopq Desert (China)
文献类型：期刊论文
| 作者 | Li, Hua1,2; Rao, Benqiang1,3; Wang, Gaohong1; Shen, Si1,2; Li, Dunhai1; Hu, Chunxiang1; Liu, Yongding1 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2014 |
| 卷号 | 71期号:1页码:245-253 |
| 关键词 | Desert algae Artificial biological soil crusts Inoculation Cyanobacterial biodiversity DGGE |
| ISSN号 | 1866-6280 |
| 通讯作者 | Liu, Y.(legand1984@hotmail.com) |
| 中文摘要 | Artificial biological soil crusts (ABSCs), formed by inoculating Microcoleus vaginatus Gom. and Scytonema javanicum Born. et Flah. onto the topsoil of desert dunes, proved to be effective tools for the stabilization of moving dunes and promotion of soil fertility. As dominant driving forces in arid habitats, the abiotic environmental conditions of undulating dunes produce a gradient of abiotic stresses on cyanobacteria. Cyanobacteria are considered pioneering phototrophs in early soil crust communities in deserts. In this study, the development of ABSCs under various environmental site conditions was investigated using 16S rRNA-based polymerase chain reaction, denaturing gradient gel electrophoresis (DGGE), and soil property measurements. After inoculation in 2002 and long-term development, patchy moss crusts were observed on the dunes. All of the available sequenced bands in the DGGE gels belonged to Oscillatoriales and Nostocales. The dominant Nostocales genus in the ABSCs was still Scytonema; however, more Oscillatoriales genera were identified, which belonged to Microcoleus and Phormidium. The cyanobacterial compositions of different slope types were significantly distinct (p < 0.05), particularly those from windward slopes. The crusts of the top-dune slopes were more heterogeneous. In addition, the soil physicochemical properties and richness indices of the windward slopes were significantly lower than those of the leeward and interdune slopes (p < 0.05). Compared with uninoculated control dunes, all of the inoculated dunes had far higher biodiversities. © 2013 Springer-Verlag Berlin Heidelberg. |
| 英文摘要 | Artificial biological soil crusts (ABSCs), formed by inoculating Microcoleus vaginatus Gom. and Scytonema javanicum Born. et Flah. onto the topsoil of desert dunes, proved to be effective tools for the stabilization of moving dunes and promotion of soil fertility. As dominant driving forces in arid habitats, the abiotic environmental conditions of undulating dunes produce a gradient of abiotic stresses on cyanobacteria. Cyanobacteria are considered pioneering phototrophs in early soil crust communities in deserts. In this study, the development of ABSCs under various environmental site conditions was investigated using 16S rRNA-based polymerase chain reaction, denaturing gradient gel electrophoresis (DGGE), and soil property measurements. After inoculation in 2002 and long-term development, patchy moss crusts were observed on the dunes. All of the available sequenced bands in the DGGE gels belonged to Oscillatoriales and Nostocales. The dominant Nostocales genus in the ABSCs was still Scytonema; however, more Oscillatoriales genera were identified, which belonged to Microcoleus and Phormidium. The cyanobacterial compositions of different slope types were significantly distinct (p < 0.05), particularly those from windward slopes. The crusts of the top-dune slopes were more heterogeneous. In addition, the soil physicochemical properties and richness indices of the windward slopes were significantly lower than those of the leeward and interdune slopes (p < 0.05). Compared with uninoculated control dunes, all of the inoculated dunes had far higher biodiversities. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 类目[WOS] | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 关键词[WOS] | GEL-ELECTROPHORESIS ANALYSIS ; COLORADO PLATEAU ; ALGAL CRUSTS ; DIVERSITY ; MICROORGANISMS ; COMMUNITIES ; SUCCESSION ; SURFACE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000329828900023 |
| 公开日期 | 2014-07-29 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/19947]  |
| 专题 | 水生生物研究所_藻类生物学及应用研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Xinyang Normal Univ, Sch Life Sci, Xinyang 464000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Hua,Rao, Benqiang,Wang, Gaohong,et al. Spatial heterogeneity of cyanobacteria-inoculated sand dunes significantly influences artificial biological soil crusts in the Hopq Desert (China)[J]. ENVIRONMENTAL EARTH SCIENCES,2014,71(1):245-253. |
| APA | Li, Hua.,Rao, Benqiang.,Wang, Gaohong.,Shen, Si.,Li, Dunhai.,...&Liu, Yongding.(2014).Spatial heterogeneity of cyanobacteria-inoculated sand dunes significantly influences artificial biological soil crusts in the Hopq Desert (China).ENVIRONMENTAL EARTH SCIENCES,71(1),245-253. |
| MLA | Li, Hua,et al."Spatial heterogeneity of cyanobacteria-inoculated sand dunes significantly influences artificial biological soil crusts in the Hopq Desert (China)".ENVIRONMENTAL EARTH SCIENCES 71.1(2014):245-253. |
入库方式： OAI收割
来源：水生生物研究所
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