AN INVESTIGATION ON SOIL MICROBIOFLORA IN TROPICAL FOREST AT JIANFENG AREA,HAINAN ISLAND I.POPULATION AND COMPOSITIONS OF SOIL ACTINOMYCES

Studies on the quantities and compositions of actinomyces in soil were carried out in the tropical forests at Jianfeng area,Hainan Island.The result showed that the populations of actinomyces in the soil of the three different forest types varied as follows:the tropical semi-deciduous monsoon forest,the most; the tropical mountain rain forest,the less and the tropical evergreen monsoon forest,the least.In addition,The maximum quantity of actinomyces was found in dry season while minimum in rain season.Streptomyces was dominant among the composition of actinomyces in the soil.