Study on the toxicity of acid rain to microbiota in soils

作     者：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 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：1991年第3卷第2期

页      面：17-26页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

主　　题：acid rain soil microbiota soil enzyme toxicity. 

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.