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。
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 .
出处
《林业科学》
EI
CAS
CSCD
北大核心
1997年第3期225-233,共9页
Scientia Silvae Sinicae
基金
林业部重点资助
关键词
杉木
球果产量预测
种子园
Chinese fir, Number of visible cones in crown, Number of cones in informative section, Prediction model, Cone prediction
