柑桔叶片害虫群落结构的生态位研究

Study on the niehe of pest insect community on orange leaves

分析了柑桔叶片害虫群落在水平、垂直和时间序列上的生态位。表明：叶片害虫群落在水平分布上是均匀的；在树冠层次上，中上层较中下层稳定且均匀；在时间节律上，全年均有分布的只有白轮蚧，分布最窄的为刺蛾类。经模糊聚类分析表明，柑桔叶片害虫群落由3个集群和3个边缘种组成。

The nicbe of pest insect community as borizontal, vertical and time series on orange leaves was analysed. The results showed that pest insect community on orange leaves is even at horizontal distribution, and more stable and even on the middle-upper layer than the lower at the tree-crown;Aulaaspis citri Chen occur all year over, while occurrence of alug moths is the shortest at time distribution. Pest insect community on orange leaves is analyzed with fuzzy cluster method.