思茅茶园土壤节肢动物群落与生境关系

STUDY ON SOIL ARTHROPOD COMMUNITIES AND ENVIRONMENT IN TEA GARDEN OF SIMAO

通过对云南思茅６种不同生态类型茶园土壤节肢动物群落的调查，获取土壤节肢动物３２０９个，分属５纲２１目。优势类群为中小型土壤节肢动物中的蜱螨目和弹尾目；原尾目、鞘翅目、膜翅目、蜘蛛目和结合目等大型土壤节肢动物为常见类群。结果表明：多层次茶园群落中，其土壤节肢动物类群、数量、密度较高；土壤节肢动物群落多样性指数则以生境条件好、管理措施强、茶叶产量高的７－９龄茶园好于生境条件差、管理强度弱、产量低的３龄和３０龄单一种植茶园；随土壤层深度的增加，土壤节肢动物类群数和个体数量逐渐减少。

AbstractThe soil arthropod communities in 6 different tea gardens of Simao were investigated in December,19953 209 individuals of soil arthropod were collected,which belong to 5 classes,21 ordersThe dominant groups are Acarina and Collembola,which belong to MesoarthropodThe common groups are Areaene、Symphyla、Protura、Coleoptera and Hymenoptera,they belong to MacroarthropodThe genera、number of individuals、density of soil arthropod communities in double tea garden is better than othersThe index of diversity of soil arthropod communities in 7～9 years tea gardens that surrounding is good and yield is high are better than those in 3 years or 30 years tea garden that surrounding is bad and yield is lowerThe vertical distribution pattern is that the groups and number of soil arhropod are decrease with soil depth,but number of individuals of some groups in bottom are more than those in surface in different tea gardens