| 投影寻踪回归模型在大豆食心虫虫食率预测中的应用 |
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| 引用本文： | 徐丹,邓华玲. 投影寻踪回归模型在大豆食心虫虫食率预测中的应用[J]. 东北农业大学学报, 2009, 40(2) |
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| 作者姓名： | 徐丹 邓华玲 |
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| 作者单位： | 东北农业大学理学院,哈尔滨,150030 |
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| 基金项目： | 黑龙江省博士后启动基金，东北农业大学科研基金 |
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| 摘 要： | 大豆食心虫的虫食率受越冬基数、气象条件等多种因素的影响,是一个复杂的非线性非正态系统,文章采用投影寻踪回归新技术,建立了大豆食心虫虫食率的预测模型,对历史值的拟合和对预留值的预测效果均令人满意,可以作为大豆虫害预测的一种新手段。
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| 关 键 词： | 大豆食心虫 投影寻踪回归 虫食率预测 |
Application of projection pursuit regression model to forecast of moth-eaten ratio of Leguminivora glycinivorella Mats |
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| XU Dan,DENG Hualing. Application of projection pursuit regression model to forecast of moth-eaten ratio of Leguminivora glycinivorella Mats[J]. Journal of Northeast Agricultural University, 2009, 40(2) |
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| Authors: | XU Dan DENG Hualing |
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| Affiliation: | XU Dan,DENG Hualing(College of Science,Northeast Agricultural University,Harbin 150030,China) |
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| Abstract: | The moth-eaten ratio of Leguminivora glycinivorella is affected by several factors,such as overwinter amounts,temperature conditions,and so on,and it is a nonlinear and nonnormal system.This paper built the forecast model of the moth-eaten ratio of Leguminivora glycinivorella by projection pursuit regression model.The historical fitting rate and the forecast fitting rate were satisfactory.So PPR can be a new method for the insect pest forecasting. |
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| Keywords: | Leguminivora glycinivorella Mats projection pursuit regression(PPR) forecast of moth-eaten ratio |
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