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| Microbial Community Structure and Function in Soils Around Uranium Tailings |
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| KeyWord:uranium tailings; soil; pollution; microbial community; diversity |
| Author Name | Affiliation | | PENG Fang-fang | College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621000, China | | LUO Xue-gang | College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621000, China | | WANG Li-chao | College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621000, China | | ZHAO Lu-xue | College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621000, China |
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| Abstract: |
| Soil microbes are sensitive to soil pollutants. Using microbiological technique could monitor soil pollution at the early stage. The structure and the functional diversity of soil microbial communities were investigated in soils around the uranium tailings in China, employing traditional dilution plate and Biolog-Eco system. The results showed that the population of soil microorganisms ranked as follows：bacteria>fungi>actinomyce. Compared with the control, the Average Well Color Development（AWCD） values decreased by（37.6%~92.0%） in soils around the uranium tailings. AWCD, Shannon index（H′） and Simpson index（D） all had an inverse correlation with the concentrations of radioactive nuclides, but a significant positive correlation with organic matter, total nitrogen, alkali solution nitrogen. The principal component analysis（PCA） showed that differences in metabolic characteristics of soil microbial community resulted mainly from carbohydrates utilization. This study might provide an option for eco-environmental monitoring around the uranium tailings. |
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