摘要
在动物界当中,人们关注的是那些大的经济动物和对人类益害显著的以及一些珍稀的动物类群。对于土壤动物,人们并不十分关心。实际土壤中的动物是相当重要的,在1m^2的森林土壤中,就有几万只跳虫和螨类,几百万条线虫。从小的原生动物到大的蚯蚓、鼹鼠,大多数的门、纲,在土壤中均有其代表。种类、数量相当丰富。
From June of 1979 to June of 1986,we spent 1 to 3 months every year investigating soil animals in 12 habitat forms and 9 soil types.About 170 groups of soil animals,which belong to 6 phylums,11 classes,22 orders and 83 families,were acquired in eight years.The dominant groups of the soil animals are Collembola,Acarina,Nematoda and Enchytraeidae.The average density of the soil animals in all habitat forms shows such a trend as coniferous and broad-leaved forest>coniferous forest >second growth forest>marshland>scrub wildland>grass- land>cropland.At the same time,the group number and the individual number of soil animals in different soil layers are the first layer>the second layer>the third layer.The individual number of soil animals in various vertical zones of Mountain Changbai gradually decreases as the height increases.
出处
《东北师大学报（自然科学版）》
CAS
CSCD
1990年第2期77-88,共12页
Journal of Northeast Normal University(Natural Science Edition)
