赤松林上调力及群落结构对昆嵛山腮扁叶蜂的调控机制及作用

The regulation mechanism and effect of the bottom-up force and red pine forest community structure on the Cephalcia kunyushanica in Kunyushan mountain

赤松作为昆嵛山腮扁叶蜂的主要寄主,赤松林上调力及群落结构对该食叶害虫种群密度的调控机制一直是昆嵛山区森林生态系统研究的核心问题之一,也是有害生物可持续控制的重要理论基础。本文把昆嵛山赤松林生态系统作为研究对象,以赤松林林分特征和以寄主植物的多样性、树种组成、邻近木和物种联结性为主的群落结构为主线,阐明了赤松林上调力及群落结构调控昆嵛山腮扁叶蜂的作用和机制,为研究昆嵛山腮扁叶蜂与寄主植物及其群落结构的关系开辟新思路和新领域,进而为真正实现森林食叶害虫的可持续控制提供依据。

The red pine is the main host of Kunyushan web-spinning sawfly（Cephalcia kunyushanica）.The regulatory mechanism of bottom-up force and community structure of red pine forest on population density of C. kunyushanica has been one of the core problems of forest ecosystem research in Kunyushan mountain region,and is also an important theoretical base for sustainable control of pest. In this study,we took red pine forest ecosystem in Kunyushan mountain as the research object,and took forest characteristics of red pine and community structure,which were the plant diversity,species composition,the adjacent trees of red pine and inter-specific association as the main line. This paper discussed the effect and mechanism of the bottom-up force and community structure of red pine forest on regulating the C. kunyushanica population and opened up new ideas and new field in researching the relationship of C. kunyushanica with host plants and community structure in Kunyushan mountain. Furthermore,itprovided a basis for the sustainable control of forest defoliator.