不同使用方式林地中大型土壤动物功能类群研究

本次研究共捕获大型土壤动物213只，分别隶属2门6纲13类．研究结果显示：优势类群为寡毛纲，蚁科；稀有类群为马陆、蜈蚣目、半翅目、双翅目和鳞翅目．不同使用方式林地中，大型土壤动物的个体密度情况为耕作林地〉自然林地，耕作林地的H’指数和e指数最高，自然林地的c指数最高．就类群数而言，自然林地〉耕作林地；而大型土壤动物个体数量则均为耕作林地〉自然林地；优势类群寡毛纲为自然林地〉耕作林地；蚁科为耕作林地〉自然林地．在垂直方向上。土壤动物类群数和个体数均在土层0~5cm处最多，类群数和个体数总体呈现逯层递减状态．

Study on the Functional Groups of Soil Macrofauna Under Different Forest Land Use Patterns

213 soil macrofauna,which belong to 2 phylums,6 Classes,13 kinds,were captured.Research shows that: superiority groups are Oligochaeta and Formicidae;rare groups are Millipedes、Scolopendromorpha、Hemiptera、Diptera和Lepidoptera.Individual density of Soil Macrofauna in different forest land use,cultivated forest land>natural forest land,the H’ index and the e index of cultivated forest land is highest,the c index of natural forest land is the highest.The number of groups is natural forest land>cultivated forest land, the number of individual macrofauna is: cultivated forest land>natural forest land.Oligochaeta of Superiority group is natural forest land>cultivated forest land,Formicidae of Superiority group is cultivated forest land> natural forest land.In the vertical direction,the number of individuals and groups of soil animals is highest in soil 0~5 cm up,the number of individuals and groups overall rendering a layer-by-layer decrement state.