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| DOI：doi：10.13522/j.cnki.ggps.20180422 |
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| Spatial Variation of the Sediment Microbial Communities in Baotou Nanhai Lake in Spring |
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ZHAO Zhong, TENG Fei, LI Weiping, YU Linghong, QI Lu, YANG Wenhuan , ZHANG Yuan
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1.Yichang Irrigation District Administration, Inner Mongolia Hetao Irrigation District Management Administration, Bayannaoer 015000, China; 2. The Colloge of Environment & Energy Resources, Inner Mongola University of Science & Technology, Baotou 014010, China
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| Abstract: |
| 【Objective】 Microbes and their community structure play an key role in aquatic ecosystems and this paper analyzed the spatial variation of the sediment microbial community in Baotou Nanhai Lake in spring.【Method】 Sediment samples were taken from deposit surface at four sites: the lake inlet, recreational area, lake center and plant-growing area. The microbial community in each sample was analyzed using the high-throughput sequencing approach.【Result】 The plant-growing area had the highest species richness and evenness, followed by the lake inlet area and the lake center. At phyla level, Proteobacteria, Chloroflexi, Bacteroidetes, Acidobacteria and Cyanobacteria were dominant; and Thiobacillus, unclassified-p-Chloroflexi were the major genus. Correlation analysis revealed that TN,TP and TOC had a great impact on structure of the microbial community.【Conclusion】Thiobacillus was widely found and played an important role in biogeochemical processes in spring within the sediments at the Nanhai Lake; It could lead to black and odorous water. Management of TN,TP and TOC should be improved as they mediate the biochemical reactions within the sediment. |
| Key words: Microbes; microbial community structure; high-throughput sequencing; Nanhai Lake; Thiobacillus |
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