Diversity of large animals in top soil layers on forest and grass scenic borders in Loess hilly areas

YOU Wen-zhong~(1,2,3),LIU Ming-guo~1,ZENG De-hui~2(1.College of Land and Environment,Shenyang Agricultural University,Shenyang 110161,China;2.Institute of Applied Ecology,CAS,Shenyang 110016,China;3.Liaoning Academy of Forestry Sciences,Shenyang 110032,China)

forest-grass scenic border;top layers of soil;large animals

In this paper,surveys and analysis of large animals in top soil layers on 3 locations on scenic borders of Robinia pseudoacacia forests and grasslands systems in Loess hilly areas were conducted.The results indicated that there were 16 kinds of large soil animals generally in the compound systems,which belonged to 3 phyla and 6 classes;forest borders were places where diversity of large animals in top soil layers was highest and communities of soil animals were complicated,number of species was rich and distributed evenly;grasslands were places where diversity of large animals in top soil layers was lowest and communities of soil animals were singularity,number of species was fewer and individuals were rich and distributed unevenly,and dominant species behaved outstandingly;diversity of large animals in top soil layers on forest land was between that for forest borders and grassland.Comparability of distribution characteristics for soil animals on borders and in forests was great,and comparability of distribution characteristics for soil animals on borders and in grasslands was small.