| 幂指模型在害虫密度与作物产量损失研究中的应用 |
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| 引用本文： | 金开正,邵达孚.幂指模型在害虫密度与作物产量损失研究中的应用[J].昆虫知识,2000,37(6):347-351. |
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| 作者姓名： | 金开正 邵达孚 |
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| 作者单位： | 1. 浙江省杭州农业学校,310023
2. 浙江省杭州市农业科学研究所,310024 |
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| 摘 要： | 本文首次引入幂指模型 ( y=y L Mexp( - bda) )来模拟害虫密度与作物产量间的关系 ,通过对 15组不同来源的害虫与作物竞争资料的模拟 ,证明幂指模型具有实际的生物学意义 ,能准确地描述多种害虫和多种作物间的危害关系 ,预测害虫危害作物可能造成的产量损失。为害虫的经济防治提供了一种新的研究方法
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| 关 键 词： | 幂指模型 害虫密度 产量损失 危害 |
The application of power-exponent model in researches of pest density and crop yield losses |
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| JIN Kai-Zheng,SHAO Da-Fu.The application of power-exponent model in researches of pest density and crop yield losses[J].Entomological Knowledge,2000,37(6):347-351. |
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| Authors: | JIN Kai-Zheng SHAO Da-Fu |
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| Abstract: | This paper first quoted power\|exponcnt model ( y=y LM exp(- bd a )) to fitting relations between pest density and crop yield, simulated 15 different source data of pests competed with crops and proved the actual biology significance of power exponent model. It can describe accurately the damage relations of varied pest and varied crop,and forecast the possible crop yield losses made by pests. It provided a new research method for economical prevention and control of pests. |
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| Keywords: | power-exponent model pest density crop yield losses damage |
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