【摘要】 对南丰县建园20年以上橘园(样点A)、农田改建橘园(样点B)和荒山改建橘园(样点C)3个样点的土壤动物进行了实地调查。共捕获土壤动物1035头,隶属于4门9纲26目97科141种。定性、定量分析了3种类型南丰橘园的土壤动物群落结构、多样性及其水平分布、垂直分布。结果表明,三类群中,蜱螨目(Acaraina)、蜘蛛目(Araneae)、矛线目(Dorylaimida)是优势类群;多样性指数是:A>B>C;优势度C>B>A;相似性指数分析A与C之间的相似性最小。从土壤剖面分析来看,具有明显的表聚性,且表层>上层>中层>下层。更多还原

【Abstract】 Soil animal communities were investigated in three different sample plots in the orange land of Nanfeng County, Jiangxi Province, China. A total of 1 035 individuals belong to 4 sorts, 26 orders, 97 families, and 141 species were collected in the sample soil. The Community indexes: the dominance( C ), evenness( E ), richness( D ), diversity (H ) and similarity coefficient( q ) of soil animal communities were analyzed. Also, both stratification pattern and horizontal pattern of soil animals in the areas were examined. The results showed that Acaraina, Araneae and Dorylaimida were the dominants in the three plots. The A community had the highest both in species and individual numbers and diversity. The C community showed the highest dominance. The similarity coefficient between the A and C community is the least. On the vertical distribution of individuals and species of soil animals, it decreases with increasing of the depth in soil and there is feature of soil animal congregating to surface horizon.更多还原