| 桔园昆虫群落空间结构研究 |
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| 引用本文： | 郭依泉,朱文炳,赵志模.桔园昆虫群落空间结构研究[J].西南农业大学学报,1988(2). |
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| 作者姓名： | 郭依泉 朱文炳 赵志模 |
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| 作者单位： | 西南农业大学植保系，西南农业大学植保系，西南农业大学植保系 |
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| 摘 要： | 本文比较了柑桔树冠不同部位昆虫群落的组成、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,树冠上、中、下和内、外的差异比东、南、西、北间的差异大,位点间相距越远,差异越大。采用Hill的相互平均法对树冠东、南、西、北,上、中、下和内、外共24个位点及17个物种分别进行二维排序,揭示了柑桔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,从而把桔园昆虫群落分为外上中层及内下层两个亚群落,为桔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。
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| 关 键 词： | 柑桔属 昆虫 生物群落 立体结构 冠层 分布 |
STUDIES ON THE SPATIAL PATTERN OF CITRUS INSECT COMMUNITY |
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| Guo Yiquan,Zhu Wenbing,Zhao Zhimo.STUDIES ON THE SPATIAL PATTERN OF CITRUS INSECT COMMUNITY[J].Journal of Southwest Agricultural University,1988(2). |
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| Authors: | Guo Yiquan Zhu Wenbing Zhao Zhimo |
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| Institution: | Guo Yiquan,Zhu Wenbing,Zhao Zhimo Department of Plant Protection,Southwest Agricultural University |
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| Abstract: | The spatial pattern of insect community in citrus canopy was studid and the comparison was made among the organization, dominanty, diversity, evenness and the amount of the individules in the insect communities. Re- sults showed that the difference from the upper, middle and lower; outer and inner canopy of citrus trees were larger than those among the com- munities from all directions (E. S. W. N.) of the canopy. The farther the distance between two canopy parts, the larger the difierence betw- een the twoinsect communities. By using Hill's reciprocal averaging me- thod, the 24 canopy parts and 17 species were ordinated and two sub- communities: the upper-middle of outer canopy and the lower-inner can- opy were resulted. The dominant species of the former sub-Iommunity is citrus red mite (Panonychus citri Megregor) and that of the latter is arrowhead scale (Unaspis yanoneusis Kuwana). |
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| Keywords: | citrus insect biocoenosis spatial structure canopy distribution |
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