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| Effects of Radionuclides on Soil Microbial Activity in a Uranium Mining Area |
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Received:October 24, 2017
Revised:November 26, 2017
Accepted:November 27, 2017
Published Online:March 20, 2018
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| DOI：doi：10.3969/j.issn.1007-7545.2018.04.017 |
| KeyWord:radionuclide; soil; microbial activity |
| Author | Institution |
| Zhou Zhong kui |
东华理工大学水资源与环境工程学院 江西南昌 |
| Sun Zhanxue |
东华理工大学水资源与环境工程学院 江西南昌 |
| Zheng Lili |
东华理工大学水资源与环境工程学院 江西南昌 |
| Rao Miaomiao |
东华理工大学水资源与环境工程学院 江西南昌 |
| Wang Yan fen |
东华理工大学水资源与环境工程学院 江西南昌 |
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| Abstract: |
| Soil samples from different concentrations of radionuclides in typical uranium mining areas were collected. Changes of soil physical and chemical properties, activity concentration of radionuclides 238U, 232Th, 226Ra and 40K, soil respiration and soil enzyme activity of soil samples were analyzed. The results show that soil respiration drops with increase of radionuclide concentration in the areas under study with different concentration, and respiration of the same concentration block is not significant at different depths. There are significant differences in content changes of soil urease, catalase, dehydrogenase, phosphatase and arylsulfatase in the soil with different concentration in the areas under study, which drops with increase of concentration of radionuclide activity. Contents of the above mentioned 5 enzymes in the soil of the same concentration at different depths drop with rise of sampling depth. Radionuclides exert a bigger effect on soil microbial activity. |
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