| 桃花花期预报的探讨 |
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| 引用本文： | 张秀英,胡东燕.桃花花期预报的探讨[J].北京林业大学学报,1995,17(4):88-93. |
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| 作者姓名： | 张秀英 胡东燕 |
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| 作者单位： | 北京林业大学园林学院，北京市植物园 |
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| 摘 要： | 该文根据北京市植物园１９８３～１９９２年气温资料和同期桃花开花的物候期，通过回归分析，发现桃花的始花期与花前２～３旬的平均旬积温和平均最高旬积温关系非常密切，相关系数分别为－０．９６２０，－０．９４０５，－０．９２３１，－０．９１６２，在此基础上建立了桃花花期预报模式，经检验拟合率较高。在实际应用中应根据该年３月份温度情况，采用相应的花期预报模式进行开花始期的计算。
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| 关 键 词： | 桃花，花期，预报模式，观测，积温 |
Prediction of Peach-Blossom Flowering Phase |
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| Zhang Xiuying,Hu Dongyan.Prediction of Peach-Blossom Flowering Phase[J].Journal of Beijing Forestry University,1995,17(4):88-93. |
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| Authors: | Zhang Xiuying Hu Dongyan |
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| Abstract: | Blooming is influenced by many factors,Up to now the temperature factor hasbeen mainly studied.According to the data on the temperature and flowering phase of peach-blossom observed in Beijing Botanical Garden,and its regression analysis,the beginning ofpeach-blossom flowering is closely related with the mean and accumulated temperature of thesecond and third decades(ten days)before blooming,The correlation coefficients are-0.962 0,-0.940 5,-0.923 1 and-0.916 2 respectively。Based on the analysis a predic-tion model for peach-blossom flowering has been set up.Experiment shows that the fittingrate of the model is fairly high.In practice, the flowering phase can be estimated with themodel and the temperature in March. |
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| Keywords: | peach-blossom flowering phase predicated model for flowering accumu-lated temperature |
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