衡山自然保护区森林土壤中动物群落研究

作者通过一年的定位实验研究，初步阐明了衡山自然保护区森林土壤中动物群落的基本状况。共获得土壤动物30类，隶属于4门11纲，其中弹尾类、蝉螨类和线虫类为优势类群，占全部土壤动物捕获量的92.88％；平均土壤动物密度为67.27万个/m~3；地带性常绿林下发育的黄棕壤中土壤动物密度高达100.47万个/m~3，其次为针阔混交林和针叶林；土壤动物主要分布于森林凋落物层和土壤的腐殖质层中，向下急剧减少；在山地土壤垂直带上，土壤动物随海拔高度而变化。

A STUDY ON FOREST SOIL INVERTEBRATES OF THE NATURAL PROTECTION AREA IN HENGSHAN MOUNTAINS (NANYUE)

: The Hengshan Mountain is located in the central subtropical zone with a monsoon climate. Here it is warm and humid, with dense forests. In the forest soil profile, there are many sorts of invertebrates, including 30 genera,:10 classes and 4 phyla. In evergreen broadleaf woods, the density (ten thousand/m3) of soil invertebrates is the greatest, followed by that of conifer woods and that of bushgrass. Among soil invertebrates found in the area, acarina, collembola and nematoda are dominant, these three account For 92.88% of the total soil invertebrates col- lected.