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《Acta Pratacultural Science》 2003-04
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Ecological study on large-size soil animals in compound ecosystem of farmland, grassland and woodland in the grassland region of Songnen Plain

WANG Haixia1,2,YIN Xiuqin1,ZHOU Daowei3(1.College of Urban and Environmental Science, Northeast Normal University, Changchun, 130024, China; 2.Northeast Institute of Geography and Agricultural Ecology, CAS Changchun 130012, China; 3.National Laboratory of Grassland Ecological Engineering, Northeast Normal University, Changchun 130024, China)  
The composition, spatial distribution and temporal movement of largesize soil animals, and correlativity between largesize soil animals and environmental factors are discussed in compound ecosystem of farmland, grassland and woodland in the grassland region of Songnen Plain. 1234 soil animals belonging to 43 groups have been obtained. The dominant groups are Formicidae and larva of Scarabaeidae, the number of common groups is 14, and the number of rare groups is 27. The horizontal distribution shows distinct inhomogeneity, and the vertical distribution of group number descends equably but the individual number shows surface gathering. Both the group number and individual number in summer are more than those in autumn. The correlativity between ground temperature and largesize soil animals is consanguineous. And the correlativity between air temperature and precipitation and largesize soil animals is obvious. 
【Fund】: 国家重点基础研究发展规划项目(G2000018602);; 国家自然科学基金项目(40171053)。
【CateGory Index】: S154
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