土壤原生动物

Ecological Distribution of Soil Protozoa under Coniferous-Broad Leaved Mixed Forest in Northern Slope of Changbai Mountain

笔者于1983年夏,对长白山北坡针阔混交林不同生境中土壤原生动物的生态分布进行了初步调查。目的是了解原生动物在针阔混交林的分布规律及其与生态条件的关系,为森林生态系统的结构与功能的研究打好基础。

51 species of protozoa are collected from soils under this forest.Monas guttula and other 9 spe- cies are wildly distributed.Flagellates is predominant in mean quantity,but Testacea is predo- minant in species numbers. There are marked differences in composition and quantity at different habitats,most in“gully and grass site in the forest”,next in“Betula platyphylla forest”,and least in“broad-leave-korean pine forest”. Protozoa generally concentrates in A_(00) and A_(0) layers,but seldom below 20cm.