黄土高原南部沟壑区森林昆虫区系研究

Forest Insect Fanua Study on Semi-arid Gully Test Region of the South Loess Plateau

对黄土高原南部沟壑区人工林的森林昆虫调查表明,试区森林昆虫有111科440属625种(亚种)。鳞翅目和鞘翅目分别占总种数的40.48%和29.44%。其次为同翅目、异翅目、直翅目、膜翅目,其他目种类较少。古北区和古北-东洋区共有种为其区系主要组分。鞘翅目森林昆虫区系成分具有多样性和过渡性特点,昆虫区系组成、种类与数量也受试区植被类型的影响。

There are forestry insect 625 species （including subspecies）,belonging to 440 genus , 111 families on semi-arid gully test region of the South Loess Plateau, after regular investigation of insect at artificial vegetation region. Lepidoptera is 40.48% of the total forest insect species, Coleoptera is 29.44%. Then are Homoptera, Heteropterea, Orthoptera, Hymenepter. Orther species is little. The species of the Paleartic Region,and the commom Paleartic-Oriental Region are main composition of semi-arid gully test region. There are diversity and transition character of forestry insect, and then its species and quantifies are influenced by semi-arid test region vegetation.