论文部分内容阅读
采用常规野外采样方法对乌鲁木齐南部山区六种不同生境中小型土壤动物群落结构及其特征进行调查分析,并运用多样性、优势度、丰富度、均匀度和相似性等分析生物多样性变化。结果表明:在三个不同季节在研究区共捕获中小型土壤动物24197只,隶属于5门13纲24目。其中真螨目(45.71%)和弹尾目(41.59%)为优势类群,寄螨目为常见类群(9.25%),优势类群和常见类群共占总数量的96.55%。其余的21类均为稀有类群,只占总捕获量的3.45%。不同生境中小型土壤动物个体数和类群数组成有明显的差异(p<0.05),水平分布表现为针叶林>山地灌木林>山地耕地>阔叶林>山地草地>居民地。多样性指数顺序为居民地>山地草地>山地灌木林>山地耕地>针叶林>阔叶林;个体数的季节动态变化为秋季>冬季>夏季;垂直分布具有明显的表聚性,即表层>中层>下层。
The community structure and characteristics of small-scale soil fauna in six habitats in southern Urumqi were investigated by conventional field sampling methods. The diversity, dominance, richness, evenness and similarity of the diversity of soil fauna were analyzed. The results showed that 24,197 small and medium soil fauna were captured in three different seasons, belonging to 5 orders, 13 orders and 24 orders. Acarina (45.71%) and Collembola (41.59%) were the dominant groups, while the common mites were common (9.25%). The dominant and common groups accounted for 96.55% of the total. The remaining 21 are rare groups, accounting for only 3.45% of the total catch. There was a significant difference (p <0.05) between the number of individuals and the number of taxa in different habitats. The horizontal distribution showed coniferous forest> mountain shrub> mountainous land> broadleaf forest> mountain meadow> residential area. The order of diversity index was residential area> mountain meadow> mountain shrub forest> mountainous field> coniferous forest> broad-leaved forest. The seasonal dynamic change of individual number was autumn> winter> summer; vertical distribution had obvious polygamy, > Middle> lower.