渭南市两种农田生境节肢动物多样性研究

Diversity Research of Arthropods in Two Kinds of Farmland Habitat in Weinan

2016年4月在陕西省渭南市临渭区、华州区、华阴市等地区进行节肢动物多样性调查,共采集到节肢动物732只,分属于5纲14目45科。按功能群分,植食性节肢动物48种、捕食性动物31种、杂食性动物4种、寄生性动物1种以及腐食性动物5种。在麦田生境下,节肢动物345只,分属于5纲13目37科,其中捕食性节肢动物占节肢动物总数的51.9%,属优势类群。在油菜田生境下节肢动物有387只,分属于5纲11目28科,其中植食性节肢动物占69.3%,属优势类群。麦田的节肢动物多样性指数H′、均匀度指数J、优势度D均高于油菜田的节肢动物指数。

The diversity research of arthropod was conducted in Linwei, Huazhou,Huayin of Weinan in April,20l 6. A total of 732 arthropods were recorded, belonging to 5 classes, 14 orders and 45 families. According to functional group, plant feeders are 48 species,predatory animals 3l,omnivorous animals 4 ,parasitic animals l and saprophagous animals 5 species. In wheat habitat, there were 345 species of arthropods, which were classified into 5 families l 3 classes and 37 orders. Among them, the predatory ar-thropod was 5l .9% of the total arthropods. In rape habitat,there were 387 species of arthropods,which were classified into 5 fami-lies 11 classes and 28 orders. Among them,the plant feeders were the 69.3% of the total arthropods. The indexes of arthropod diver-sity -Hr,evenness index-J,Dominance-D in wheat habitat were higher than those of rape habitat.