| 农田生态系统植物多样性对害虫种群数量的影响 |
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| 引用本文： | 侯茂林,盛承发.农田生态系统植物多样性对害虫种群数量的影响[J].应用生态学报,1999,10(2):183. |
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| 作者姓名： | 侯茂林 盛承发 |
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| 作者单位： | 1. 中国农业科学院生物防治研究所,北京,100081
2. 中国科学院动物研究所,北京,100080 |
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| 摘 要： | 着重分析植物多样性影响害虫发生为害及种群数量的生态学机制，综合评述了关于这种机制的两种主要假说，即天敌假说和资源集中假说．同时总结了植物多样性增大和减少对害虫控制的有利和不利因素．研究表明农田生态系统中植物多样性的增大在多数情况下能导致某些害虫种群数量的下降，但是目前很难就不同栖境中所有类型的害虫形成一般性的结论
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| 关 键 词： | 农田生态系统 植物多样性 害虫防治 天敌假说 资源集中假说 |
Effect of plant diversity in agroecosystems on insect pest populations |
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| Hou Maolin,Sheng Chengfa.Effect of plant diversity in agroecosystems on insect pest populations[J].Chinese Journal of Applied Ecology,1999,10(2):183. |
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| Authors: | Hou Maolin Sheng Chengfa |
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| Abstract: | In this
paper, the ecological mechanism about the effect of plant diversity on insect pest development
and its population dynamics was analyzed. Natural enemy hypothesis and food source
concentration hypothesis, the two main prevailing hypotheses concerning this ecological
mechanism, were reviewed, and the advantages and disadvantages of plant diversity for insect
pest control were summarized. Empirical data show that increased plant diversity in
agroecosystems may, at many cases, reduce the populations of certain insect pests, but at
present, it is difficult to draw a general conclusion about the effect of plant diversity on
populations for all types of insect pests in different habitats. |
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| Keywords: | Agroecosystem Plant diversity Insect pest control Natural enemy hypothesis Food source concentration hypothesis |
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