喀斯特马尾松自然林火烧迹地土壤动物调查

Study on soil fauna in the burned area of natural pine forests in Karst Region

为研究火烧迹地土壤动物多样性,2011年10月对喀斯特马尾松自然林火烧迹地土壤动物群落进行了调查,共捕获土壤动物641只,隶属3门4纲10目36科44类(属),其中优势类群为螯长须螨属(Cheylostigmaeus)。土壤动物表现出较强的区域性特征。类群数垂直分布无明显表聚性,但个体密度表聚性明显。

In order to study diversity of soil fauna in burned area, an investigation was conducted on soil fauna community in the burned area of natural pine forests in Karst region in October, 2011. A total of 641 individuals of soil fauna were collected, belonging to 3 phyla, 4 classes, 10 orders, 36 families, and 44 groups. The dominant group was Cheylostigmaeus accounting for 31.46%. The soil fauna community showed typical zonal characteristics compare with other localities in China. The taxonomic richness of soil fauna had no significant difference in the soil profile, but individual density decreased significantly with soil depth.