Abstract:

From May 2002 to Sept. 2002, Soil fauna communities were investigated by modified Tullgren and hand sorting method at natural secondary coniferous forest(A), natural secondary mixed coniferous and broadleaf stands(B), artificial coniferous forest?and artificial mixed coniferous and broadleaf stands(D). 30 045 individual (24 unidentified) of soil fauna had been collected,belonging to 56 familia, 3 superorders, 21 orders, 10 classes,3 phyla, of which 7 631 collected in soil layer(0～15 cm)and 22 390 in litter, which belong to 41 familia, 3 superorders, 21 orders, 10 classes,3 phyla, and 56 familia, 3 superorders, 21 orders, 10 classes,3 phyla, respectively. The number of individuals and communities were both D>A>B>C at 4 types of forest stand, and vertical distribution were significant at the same forest, in generally, the most of individual at 0～5 cm and the least at 10～15 cm, while the community decreased with the depth of soil. The maximum and minimum of diversity index(H′) varies with different community and month, and its relative value was D>C>A>B, either did Pielou index(Js)and Simpson index as a whole. The result by Jaccard(q)and Gower index analysis indicated composing of community was much more heterogeneous.

Key words: soil fauna, community, diversity, Maoershan Mountains, Heilongjiang Province