| 杨树烂皮病测报技术的研究 |
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| 引用本文： | 赵经周,魏侠,韩益斌,钟建文,李万海,邓立文. 杨树烂皮病测报技术的研究[J]. 林业科技, 1991, 0(4) |
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| 作者姓名： | 赵经周 魏侠 韩益斌 钟建文 李万海 邓立文 |
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| 作者单位： | 黑龙江省森林保护研究所 大庆市林业局 |
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| 摘 要： | 根据杨树烂皮病(Varva sodida)的病情与不同发病时期的平均温度、相对湿度、总降雨量、温湿比、湿雨比的关系,通过电子计算机计算的结果,应用多元统计方法,建立了多元线性回归预报模型。该模型拟合率高,可预报30天的病情指数,适于生产应用。
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| 关 键 词： | 杨树烂皮病 多元线性回归 预报 模型 |
STUDY ON FORECAST TECHNIQUE OF BARK NECROSIS OF POPLARS |
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| Zhao Jingzhou Wei Xia Han yibin Zhang Jianwen. STUDY ON FORECAST TECHNIQUE OF BARK NECROSIS OF POPLARS[J]. Forestry Science & Technology, 1991, 0(4) |
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| Authors: | Zhao Jingzhou Wei Xia Han yibin Zhang Jianwen |
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| Affiliation: | Zhao Jingzhou Wei Xia Han yibin Zhang Jianwen (Heilongjiang Research Institute of Forest Protect) Li Wanhai Deng Liwen (Daqing Forestry Bureau) |
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| Abstract: | According to the relationship between the state of the disease of bark necrosis caused Valsa sordida and period of the disease with average temperature,relative humidity,total rainfall,ratio of temperature to humidity,ratio of humidity to rainfall,to computer results,the forecast model of multivariate linear regression is established in the light of multiplicative statistics methed. It's fitting ratio is higher and can be applied in production. |
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| Keywords: | Bark necrosis of poplar Multivariate linear regression Forecast Model |
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