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调查了４种不同园林植物类型内昆虫群落在１年中的组成及数量变化，应用主分量分析方法及最优分割方法分析了昆虫群落在时间过程中的主导因素和时间格局。结果表明，构成复杂的植物类型内，昆虫群落构成亦复杂，在时间过程中，昆虫群落结构变化波动小，具有明显的主导因素和时间格局；在单纯的植物类型中，昆虫群落组成简单，随时间变化，群落剧烈波动，且主导因素及时间格局分化不明显。
The composition and quantitative changes of insect community in four different plantation types in one year were investigated. Principal component analysis and the optimal segmentation method were used to analyze the predominant factors and temporal pattern of the insect community in time. The results showed that the composition of the insect community was also complex in complex plant types. During the time course, the community structure of the insect community fluctuated little and had obvious dominant factors and time pattern. In pure plant types, the insect community composition was simple, With the change of time, the community fluctuated violently, and the differentiation of dominant factor and time pattern was not obvious.