The Role of Nonphotosynthetic Microbes in the Recovery of Biological Soil Crusts in the Gurbantunggut Desert, Northwestern China
文献类型：期刊论文
| 作者 | Wu ; Zhang ; Pan ; Zhang ; N. ; Y. M. ; H. X. ; J. |
| 刊名 | ARID LAND RESEARCH AND MANAGEMENT
 |
| 出版日期 | 2010 |
| 卷号 | 24期号:1页码:42-56 |
| 关键词 | EXTRACELLULAR CARBOHYDRATE POLYMERS SUCCESSIONAL STAGES MICROBIOTIC CRUSTS COLORADO PLATEAU CYANOBACTERIAL INOCULATION CHIHUAHUAN DESERT NATIONAL MONUMENT HEATED SOILS WIND EROSION ARID LANDS |
| ISSN号 | 1532-4982 |
| 通讯作者 | Zhang, YM, Chinese Acad Sci, Key Lab Biogeog & Bioresources Arid Land, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China |
| 中文摘要 | The mechanisms regulating the recovery of biological soil crusts (BSCs) due to the presence of nonphotosynthetic microbes were investigated using a soil scalping technique. Microscopic examinations identified the oglueo and oropeo action of bacteria and fungi at the initial stages of recovery of BSCs prior to the appearance of cyanobacteria. Extracellular polymeric substances (EPS) excreted by bacteria principally contained glucose and mannose. The optimum conditions for EPS production included the availability of glucose as the carbon source, the presence of CaCO3 (2g/L), KH2PO4 (0.3g/L), and MgSO4 (0.1g/L), a pH of 7 and incubation at 37 degrees C for 72h. Crust-forming tests in the laboratory and in the field demonstrated that inoculation of bare sand with oligotrophic bacteria was effective in accelerating the recovery of BSCs. The number of nonphotosynthetic microbes (especially actinomycetes and fungi) recorded in both the crust layer (0-2cm) and subsurface layer (2-5cm) was higher after 3 years than after 1 year. Microbial spatial variability of BSCs was related to nutrient status, especially available N. |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/10042]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Wu,Zhang,Pan,et al. The Role of Nonphotosynthetic Microbes in the Recovery of Biological Soil Crusts in the Gurbantunggut Desert, Northwestern China[J]. ARID LAND RESEARCH AND MANAGEMENT,2010,24(1):42-56. |
| APA | Wu.,Zhang.,Pan.,Zhang.,N..,...&J..(2010).The Role of Nonphotosynthetic Microbes in the Recovery of Biological Soil Crusts in the Gurbantunggut Desert, Northwestern China.ARID LAND RESEARCH AND MANAGEMENT,24(1),42-56. |
| MLA | Wu,et al."The Role of Nonphotosynthetic Microbes in the Recovery of Biological Soil Crusts in the Gurbantunggut Desert, Northwestern China".ARID LAND RESEARCH AND MANAGEMENT 24.1(2010):42-56. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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