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对黄土高原南部的渭北沟壑区退耕还林还草后的昆虫区系进行了调查研究。结果表明,该试区有鳞翅目森林昆虫31科174属253种,其中蛾类26科137属197种,蝴蝶类5科37属56种;古北界、古北-东洋跨界种类是该试区鳞翅目昆虫区系的主要组成类群;试验区鳞翅目昆虫区系组分具有过渡性、多样性特征,并且这些特征在一定程度上受人工植被类型的影响。
The insect fauna after the conversion of cropland to forest and grassland in the Weibei gully area in the southern Loess Plateau was investigated. The results showed that there were 253 species belonging to 174 genera and 31 families belonging to the Lepidoptera forest insects, of which 197 species belong to 26 genera and 197 genera in the test area, while 56 species belong to 37 genera and 5 genera in the butterfly assemblage. The Lepidoptera insect fauna in the test area is mainly composed of taxa. Lepidoptera fauna in the test area has transitional and diversity characteristics, and these characteristics are affected to some extent by artificial vegetation types.