本文对里骆林区杉木纯林土壤微生物的分布、数量和种群的组成及其变化规律进行了研究。结果表明,杉木纯林微生物以细菌占优势,其次为放线菌,真菌最少,而且各类微生物的数量和种群受季节、剖面深度和土壤理化性状等因素的明显影响。 In this paper, the distribution, population, population composition and variation of soil microorganisms in the pure Chinese fir plantation in Lulin District were studied. The results showed that the microorganisms of Cunninghamia lanceolata were dominated by bacteria, followed by actinomycetes, with the least number of fungi, and the number and population of various microorganisms were significantly affected by the season, depth of section and soil physical and chemical properties.