小兴安岭针叶凋落物的分解与土壤动物的作用

应用不同网孔分解样袋、排除不同类型土壤动物的作用的方法，对比研究土壤动物对针对凋落物的分解作用，结果表明，在各类土壤动物作用下的大孔网袋样品的分解速度明显快于只有中小型土壤动物作用的中孔网的分解样品，快于尽量排除土壤动物作用条件下的小孔网袋的分解洋；凋落物分解过程中，凋落物失重量与土壤动物个体数量之间的相关性不明显，土壤动物对质地较软的凋落物作用程度较质地较硬的凋落物高；土壤动物的多样性指数分析表明，土壤动物的多样性随样品分解时间的增长无明显的规律性变化。

Decomposition of Coniferous Litter and the Function of Soil Animal in the Xiao Hinggan Mountains

This study applies the method that the bags with different size meshes exclude the functions of different kinds of soil animals to compare the decomposing function of the soil animals to coniferous litter The studying results show as: the decomposing speed of the bags with big meshes, under functions of all kinds of soil animals, faster than the bags with medium meshes, under functions of medium and small soil animals, as well as the bags with small meshes that excluding all possibility of functions of soil animals; in the process of decomposition of litter, relationship of the litter lost weight with number of soil animals is not obvious clearly; the degree of functions of soil animals to soft litter higher than hard litter; according to the analyses of diversity index, no regular changes will happen to the diversity of soil animals as the time of decomposing samples lengthen