龙胜里骆林区土壤微生物学特性研究

A Study on the Properties of Soil Microbiology in the Liluo Forest Region of Longshen County

关键词:  土壤微生物  生化活性  森林类型

Key words:  soil microorganisms  biochemical activitvies  forest types

摘要:

我们研究了龙胜县里骆林区不同海拔高度、不同森林类型和不同土层深度土壤微生物学特性,结果表明:1.不同海拔高度土壤微生物的数量及生化活性以低海拔土壤较高。2.不同森林类型土壤微生物及生化活性常绿阔叶林高于针阔混交林,针阔混交林高于针叶林。3.不同土层深度土壤微生物分布以0~20cm土层最多,20~40cm次之,40~80cm最少。各剖层土壤微生物数量随季节变更有明显季节变化。

Abstract:

We studied on the properties of soil microorganism in the different altitude, forest types and soil depth in Lilou forest region of Lengshen county. The results indicatde:Both the number of soil microorganism and biochemical activities at the low elevation are higher than at the high elevation, and the evergreen broad-leaved forest are higher than the broad-leaved and coniferous mixed forest, the coniferous plantation are the lowest. The distribution of soil microorganism is most abundances in 0~20cm in depth, the 20~40cm is less, the 40~80cm is the least. The number of soil microorganism in different soil layer changes remarkably with season change.