四川四面山地区土壤放线菌分布特性

The Distributive Characters of soil Actinomyces in Some Regions of Simian Mountain in Sichuan Province

在筛选新抗生物质的过程中，收集了四川四面山地区不同类型的土壤，分离其中的放线菌，发现该地区土壤放线菌的分布在品种和数量上有农业土壤大于荒草地、荒草地大于森林土壤的规律。

Some strains of soil actinomyces collected in Simian Mountainous area in Sichuanprovince were isolated,the distributive characters of soil actinomyces and varieties of them were alsoinvestigated. The result showed that there are numbers of and varieties of actinomyces in the area,the order of which in different soil is as follows:that in asriculrural soil is more than seil in waste-land while that in the latter is more than that in forest soil。