| Study on the toxicity of acid rain to microbiota in soils |
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| 作者姓名： | Liao Ruizhang Cao Hongf Liu Liangui Gao Jinlan |
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| 作者单位： | Liao Ruizhang，Cao Hongfa，Liu Liangui and Gao JinlanInstitue of Soils and Fertilizers，Chinese academy of Agricultural Sciences，Beijing 100081，China.Institue of Ecology，Chinese Academy of Environmental Sciences，Beijing 100012，China |
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| 摘 要： | With simulated acid rain and acidification, the soils from both Nanning and Liuzhou municipalities, Guangxi Zhuang Nationality Autonomous Region have been studied to determine the counts of azotobacter, bacteria, actinomyces and the activity of urease in soils, and the changes in respiratory intensity of soil so as to identify the toxicity of acidic substances to microbiota and enzyme in such soils. The concept of the critical pH of toxicity has been developed and used to discuss the representation of the concept, the basis on which the soil treated with simulated acid rain can be taken as an object of study, and the criteria for the identification of toxicity. Based on that as mentioned above, it was found that acid rain behaved to have toxicity to the microbiota in soils from Liuzhou other than from Nanning. The findings may be regarded as an objective basis to study the toxicity of acidic substances to microbiota and enzyme in soils in this region.
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| 关 键 词： | acid rain soil microbiota soil enzyme toxicity. |
| 收稿时间： | 2/9/1990 12:00:00 AM |
Study on the toxicity of acid rain to microbiota in soils |
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| Liao Ruizhang,Cao Hongf,Liu Liangui,Gao Jinlan.Study on the toxicity of acid rain to microbiota in soils[J].Journal of Environmental Sciences,1991,3(2):17-26. |
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| Authors: | Liao Ruizhang Cao Hongfa Liu Liangui and Gao JinlanInstitue of Soils and Fertilizers Chinese academy of Agricultural Sciences Beijing ChinaInstitue of Ecology Chinese Academy of Environmental Sciences Beijing China |
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| Institution: | Liao Ruizhang,Cao Hongfa,Liu Liangui and Gao JinlanInstitue of Soils and Fertilizers,Chinese academy of Agricultural Sciences,Beijing 100081,China.Institue of Ecology,Chinese Academy of Environmental Sciences,Beijing 100012,China |
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| Abstract: | With simulated acid rain and acidification, the soils from both Nanning and Liuzhou municipalities, Guangxi Zhuang Nationality Autonomous Region have been studied to determine the counts of azotobacter, bacteria, actinomyces and the activity of urease in soils, and the changes in respiratory intensity of soil so as to identify the toxicity of acidic substances to microbiota and enzyme in such soils. The concept of the critical pH of toxicity has been developed and used to discuss the representation of the concept, the basis on which the soil treated with simulated acid rain can be taken as an object of study, and the criteria for the identification of toxicity. Based on that as mentioned above, it was found that acid rain behaved to have toxicity to the microbiota in soils from Liuzhou other than from Nanning. The findings may be regarded as an objective basis to study the toxicity of acidic substances to microbiota and enzyme in soils in this region. |
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| Keywords: | acid rain soil microbiota soil enzyme toxicity |
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