---

作 者 ：喻方圆 陈幼生 肖石海 王远浩 余荣卓

期 刊 ：林业科学 1997年 33卷 3期 页码：225-233

关键词：杉木；可见半面树冠；信息段；预测模型；球果产量预测；

Keywords:Chinese fir, Number of visible cones in crown, Number of cones in informative section, Prediction model, Cone prediction,

摘 要 ：通过四年调查,在福建省尤溪经营林场杉木种子园和洋口林场杉木种子园,对预测球果产量的可见半面树冠法和信息段法进行了研究,并建立了综合预测模型。验证结果表明,所建模型用于球果产量预测,精度高,方法简便。

Abstract:An investigation at Youxi and Yangkou seed orchard of Chinese fir from 1991 to1994 has been made to study two cone crop prediction methods counting number of visi-ble cones in crown from an observation point and counting number of cones in certaininformative section of crown. Prediction models were developed for each method. The re-sults verified at different seed orchards showed that the models could be used precisely and easily .

---