薄壳山核桃林地昆虫物种多样性、功能多样性及其相互关系分析

通过扫网法和踏查法,调查了浙江省建德市薄壳山核桃Carya illinoensis林地昆虫多样性情况,共采集昆虫589头,鉴定至11目160种。基于9个生物学性状、4个物种多样性指数和7个功能多样性指数,研究了建德薄壳山核桃林地昆虫物种多样性和功能多样性2个维度的生物多样性,探究了两者的相互关系。结果表明:1同翅目Homoptera,半翅目Hemiptera,鞘翅目Coleoptera,鳞翅目Lepidoptera为优势目,整个昆虫亚群落的物种多样性和功能多样性均为最大。2选取的功能指数能较好地反映各群落的功能多样性情况。3功能性状距离(FAD),功能性状平均距离(MFAD),功能树状图指数(FD)随物种丰富度的增加而增大,属于物种丰富度单调递增指数(MSR);功能性状距离与功能性状平均距离是同一类指数。4功能多样性对害虫防治有指导意义。

Effects of Different Types of Pecan(Carya illinoensis) Seedlings on Forestation Survival Rate in Yunnan

In order to explore the forestation technique of pecan in Yunan, different types of pecan seedlings, bare-rooted seedlings and container seedlings were plant- ed in Yunnan, and their survival rates were investigated. This study will provide im- portant guidance for development of pecan industry in Yunnan Province.