岩质海岸防护林土壤微生物数量及其与酶活性和理化性质的关系

Study on Quantitative Distribution of Soil Microorganism and Relationship with Enzyme Activity and Physical,Chemical Property of Shelter forest in Rocky Coastal Area

研究了亚热带基岩海岸不同类型防护林土壤微生物分布特点 ,并用数学方法探讨了它与土壤酶活性和理化性质的关系 ,结果表明 :(1)土壤中各类微生物数量相关极显著 ,其数量关系是细菌 >放线菌 >真菌 ,不过真菌所占的比例较泥质海岸高 ;(2 )不同林地土壤微生物差异很大 ,胡柚、桃形李等经济林土壤微生物多 ,马尾松和杨梅成林较少 ;(3)土壤微生物数量与土壤酶活性有一定的相关性 ;(4)土壤微生物数量与土壤理化性质密切相关。最后 。

The quantitative distribution of soil microorganism of different protective forest types in rocky sub tropical coast is studied.By means of mathematical analysis,the relationship of soil microorganism with enzyme activity,physical and chemical property is discussed.The results are as follows:①There is significant correlation among the three types of microorganisms.Major population is bacteria,followed by actinomycete,the least one is fungi.But the percentage of fungi is much higher than that in silting coastal areas.②The quantity of soil microorganisms in different forest types is quite different.There are more soil microorganisms in no timber forest,whereas the number is less in mature forest of Pinus massoniana and Myrica rubra .③There is a correlation between soil microorganisms and enzymes, but the coefficients are low. ④There is close correlation between soil microorganism and physical,chemical property.At last,some relative problems are discussed.