太谷县枣园土壤动物与土壤养分的关系

2003年3月至4月对山西省太谷县枣园土壤动物进行了分层取样, 大型土壤动物以手拣方法采集, 中、小型土壤动物用干漏斗法和湿漏斗法进行分离, 调查共获大、中小型土壤动物3410个, 分属于3门、7纲、15目、18类。线虫、螨类为优势类群; 线蚓类、枣尺蠖蛹、蚯蚓类、鞘翅目幼虫、双翅目幼虫为常见类群。通过6个样地对比得出, 土壤动物的类群数随着土壤养分的增加而增加, 随着土壤pH和容重的增大而减少, 且其类群数和个体数随着土壤深度的增加而递减。为枣园主要害虫的生态调控提供了理论基础。

Relationship between Soil Fauna and Soil Nutrients in Jujube Garden of Taigu

Soil fauna in Jujube garden of Taigu, Shanxi province was investigated from March to April 2003,samples in different layers,the big soil animals were taken. The smaller animals were separated by Tullgren and Baerman.3410 individuals were collected, which belonged to 3 phyla, 7 classes, 15 orders and 18 genera. The dominant genera were Acari and Nematoda,and the common genera were Enchytraeidae, %Sucra juauba%, Oligchaeta, Coleoptera(L), Diptera(L).A comparison of 6 plots showed that the group of soil fauna was increased with increasing soil nutrients, but decreased with increasing soil pH and bulk density, Both the group and individuals were decreased with soil depth. This provided the theory base for ecological controlling dominant pest in jujube garden.