许昌郊区不同生境下大型土壤动物资源调查

调查了7种生境的土壤动物数量和群落组成,共获得土壤动物538只,隶属于3门7纲11目.分析表明：优势类群为蚁科和线虫,常见及较常见类群为鳞翅目、蚯蚓、鞘翅目、马陆、鳞翅目（蛹）、蛴螬、蜘蛛目、鼠妇,其余5类为稀有类群.土壤动物的个体数及类群数以城市道路绿地最多,废弃荒地最少,说明人为干扰较小的生境土壤动物的数量和类群数较多.多样性以河边人工灌丛沙地最高,菜地最低,这与河边人工灌丛沙地营养丰富,菜地施用化肥、农药有关.菜地与废弃荒地的相似性极高,说明其群落组成相同.

Study on Soil Animal Resources of Seven Different Ecosystems in Xuchang

The quality and composition of soil animals in seven ecosystems are investigated in Xuchang and a total of 538 soil animals are captured and identified in the experiment,which belong to 3 phyla,7classes and 11 orders.The results show that formicidae and nematode are dominant species,the common groups are lepidoptera,pheretima,coleoptera,millipede,lepidoptera,scarabaeoidea,aranese and armadillidium,and the rest is rare species.The number of soil animals in road green is the largest and that in abandoned wasteland is smallest,which suggests that ecosystems with less anthropogenic interference have more quantities and groups of soil animals.Shrub artifical river land is highest in species diversity,while vagetable field is lowest,which is assumed to be related to soil fertility and application of agro-chemicals.Vegetable field and abandoned wasteland have a high similarity coefficient and their community structure is similar too.