保定市不同绿地类型土壤动物的种类·数量及分布特征

Species,Quantities and Distribution Characteristics of Soil Animals of Different Greenbelt Types in Baoding City

[目的]调查保定市4种城市绿地生境中的土壤动物群落。[方法]通过对保定苗圃、道路、防护林和公园4种绿地的土壤动物进行6次调查取样与鉴定统计，研究保定市不同绿地类型土壤动物的种类、数量及分布特征。[结果]通过取样鉴定，在4种绿地中共采获到土壤动物1462只，隶属2门8纲14目，其中优势类群为蜱螨目、弹尾目和膜翅目，常见类群为颤蚓目、蜘蛛目、双尾目和鞘翅目幼虫，其余类群为稀有类群。4种绿地类型的土壤动物种类组成极为相似。从单位面积土壤动物的数量看，表现为：苗圃绿地〉公园绿地〉道路绿地〉防护绿地。[结论]土壤动物较多分布在0～10cm土层中，以0～5cm土壤层的数量最大，有明显的表聚现象，这与绿地环境条件有密切关系。

[ Objective ] The study aimed to investigate the soil animal communities from 4 kinds of greenbelt habitats in Baoding City. [ Method] The species, quantities and distribution characteristics of the soil animal communities from different types of greenbelts in Baoding City were studied through sampling investigation and statistical identification on the soil animal communities from 4 greenbehs including nursery, road, protection forest and park in Baoding City. [ Result ] The sampled identification showed that, a total of I 462 soil animals were collected from 4 greenbehs, belonging to 14 orders, 8 classes and 2 phyla. The dominant groups were Aconite, Collembola and Hymenoptera, while Tubificidae, Arenas, Isopoda, Diplura, Coleoptera larvae were the ordinary groups and others were rear groups. The composition of soil animals in the 4 kinds of greenbelt habitats was extremely similar. The animal density in unite soil for 4 kinds of greenbelt in order was as follows ： nursery greenbelt 〉 park greenbelt 〉 road greenbelt 〉 protection greenbelt. [ Conclusion ] The soil animals distributed mainly in the soil layer of 0 - 10 era, with most number in soil layer of 0 -5 era, showing the obvious surface aggregation phenomenon, which had a close relation to the greenbelt habitats.