有机荔枝园区生物多样性初步研究

调查了有机荔枝园区的生物多样性,结果表明,在有机荔枝园区中,生物群落包括昆虫纲12目62科,非昆虫纲动物7目。其中害虫群落以鞘翅目的科数最多,其次是鳞翅目和直翅目,其科数分别占害虫总科数的31.8%、18.2%和18.2%。天敌的种类相当丰富,天敌昆虫包括7目15科23种,蜘蛛12种。天敌昆虫中鞘翅目的种数占总种数的52.2%,其次是膜翅目,占21.7%。有机荔枝园区的昆虫群落中,害虫占30.9%,天敌占28.4%,40.7%为中性昆虫。

Pilot study on the biological diversity of different litchi orchard

In this dissertation,the biological diversity of organic litchi orchard were researched.The result showed that there were 12 orders,62 families of insect and 7 orders other animals in the organic litchi orchard.The families of Coleoptera were the most in the pest community,the Lepidoptera and Orthoptera took second place.The proportion of Coleoptera,Lepidoptera and Orthoptera were 31.8%,18.2% and 18.2%,respectively.The species of natural enemy was quite abundance,which included 7 orders,15 families and 24 species.There were 12 species of spiders in the organic litchi orchard.The species of Coleoptera was the most species,which the proportion of 52.2%.The Hymenoptera took second place,which the proportion of 21.7%.In the group of insect in organic litchi orchard,pest insect represented 30.9%,natural enemy 28.4% and natural insect 40.7%.