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作 者 ：谢斌 史世元

期 刊 ：西北植物学报 1999年 2期

关键词：油松；球果产量；可见半面树冠；信息段；预测预报；

Keywords:Pinus tabulaeformis, cone crop, number of visible cones in crown, number of cones in certain information section, cone prediction,

摘 要 ：用可见半面树冠法和信息段法，对陇县八渡油松种子园球果近期产量进行了预测，建立了预测模型，并验证其预测结果精度高，可靠性强。其中信息段法更适合油松种子园球果产量近期预测预报。

Abstract:An investigation at Badu seed orchard of Pinus tabulaeformis has been made to study two cone crop prediction methods:counting number of visible cones in crown from an observation point and counting number of cones in certain information section of cro

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