| 赤松毛虫幼虫单体食叶量数学模型的研究 |
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| 引用本文： | 李文皋,周正甫,温秀军. 赤松毛虫幼虫单体食叶量数学模型的研究[J]. 河北林果研究, 1991, 0(2) |
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| 作者姓名： | 李文皋 周正甫 温秀军 |
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| 作者单位： | 河北省林业科学研究所(李文皋，周正甫)，河北省林业科学研究所(温秀军) |
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| 摘 要： | 本文采用单体饲养的方法,测定了赤松毛虫幼虫单体在各龄的食叶鲜重和长度,用指数模型、幂函数模型、复合指数模型对幼虫单体食叶量进行了拟合,并进行了拟合优度比较,得出幼虫单体食叶鲜重(W)和食叶长度(L)的最优拟合数学模型。
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| 关 键 词： | 赤松毛虫 幼虫 食叶量 数学模型 拟合优度比较 |
STUDIES ON MATHEMATICAL MODEL FOR AMOUNT OF INGESTED NEEDLES BY SINGLE Dendrolimus spectabilis BUTLER LARVA |
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| Li Wengao,Zhou Zhengfu,Wun Xiujun. STUDIES ON MATHEMATICAL MODEL FOR AMOUNT OF INGESTED NEEDLES BY SINGLE Dendrolimus spectabilis BUTLER LARVA[J]. Hebei Journal of Forestry and Orchard Research, 1991, 0(2) |
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| Authors: | Li Wengao Zhou Zhengfu Wun Xiujun |
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| Affiliation: | Forestry Institute of Hebei Province |
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| Abstract: | The weight and length of needles ingested by single D.spectabilis in each larva instar were determined using single larva feeding method.The indices model, the power function model and the compound index model were used to fit the amount of ingested needles by single larva. And com-parision of goodness of fit was also carried out.Afterward, the optimum fit mathematical models for the amount and the length of ingested needles by single larva were created. They are. Weight of ingested needles:W=e( -5.42503 + 1.73476x + 0 .00044x2 -0 .02376x 3)(before the survival of winter)e( -0.20418-0. 09299x + 0.0007x2+0. 00799x3)(after the survival of winter)Length of ingested needlesL=e(-2.75262+1.01509*x+0 .01121 x2 -0.01894x3)(before the survival of winter)e(0.69868-0.20356x +0.00063x2+0.00855x3)(after the survival of winter) |
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| Keywords: | D.spectabilis Butler larva amount of ingested needles mathe-matical model comparision of goodness of fit |
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