| 选择性农药对稻田蜘蛛群落的影响 |
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| 引用本文： | 刘向东 张孝羲. 选择性农药对稻田蜘蛛群落的影响[J]. 昆虫知识, 1999, 36(2): 67-70 |
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| 作者姓名： | 刘向东 张孝羲 |
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| 作者单位： | 南京农业大学植物保护学系 |
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| 摘 要： | 通过对施用混灭威药剂后３－２３天的稻田群落进行分析。结果表明，施药后稻田群落的物种丰富度、多样性、均匀性降低，优势度、优势集中性、蛛、虱比升高，并且不同用药量下，蛛虱比的升降情况不同，选择性药剂对蜘蛛亚群落的垂直生态２位有影响，但对水平生态位影响不大。
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| 关 键 词： | 选择性农药 群落结构 飞虱 蜘蛛 稻田 |
Effects of a selective insecticide on the community structure of rice fields |
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| LIU Xiang-Dong, ZHANG Xiao-Xi. Effects of a selective insecticide on the community structure of rice fields[J]. Entomological Knowledge, 1999, 36(2): 67-70 |
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| Authors: | LIU Xiang-Dong ZHANG Xiao-Xi |
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| Abstract: | Community structure of rice fields was analysed 3-23 days after a selective insecticide sprayal. The results showed that the species abundance, diversity and evenness of community decreased. The changes in ratio of spider to planthopper were found to be closely related with insecticide dosage. The vertical niche of spider subcommunity was affected significantly by dosage, but the level niche was not. |
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| Keywords: | selective insecticide commeunity structure planthoppers spiders rice field |
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