摘要
通过比较苹果园树冠不同部位的昆虫群落的组成、数量、优势度、多样性、均匀度和群落内个体总数的差异，结果表明，树冠不同部位的昆虫群落的差异大小为：西北＞上下＞南北＞东北＞东西＞内外＞西南＞东南，从组成上看叶螨和蚜虫为苹果树上的优势种群．从群落的多样性上看：多样性主要受均匀度的影响，并为正相关，而与优势度成相关．从而初步揭示了苹果主要害虫及天敌在树冠内的分布及树冠各部位昆虫群落的差异性，为果园昆虫群落的抽样调查及害虫防治措施的制定提供了依据．
The spatial structure of insect community in apple canopy was studid and thecomparison was made among the arganiztion,dominanty,diversity,evenness and the amount of the individuales in the insect community.Results showed that the difference from the upPer and lower;those among the community from all directions (E.S.W.N) of the canopywere larger thanouter and inner canopy of apple trees,The farther the distance between twocanopy parts, the lareger the difference between the two insect community.
出处
《石河子大学学报（自然科学版）》
CAS
1994年第Z1期57-60,共4页
Journal of Shihezi University(Natural Science)
关键词
苹果
昆虫群落
空间结构树冠
apple
insect community
spatial structure,canopy
