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林业科学 ›› 1997, Vol. 33 ›› Issue (3): 225-233.

• 论文及研究报告 • 上一篇    下一篇

杉木种子园球果产量预测方法的研究

喻方圆1,陈幼生1,肖石海2,王远浩3,余荣卓4   

  1. 1. 南京林业大学 南京 210037
    2. 福建省林木种苗管理总站 福州 350003
    3. 福建省尤溪经营林场 尤溪 365100
    4. 福建省洋口林场 顺昌 353200
  • 收稿日期:1995-10-06 出版日期:1997-05-25 发布日期:1997-05-25

STUDY ON PREDICTION METHOD OF CONE CROP IN CHINESE FIR [CUNNINGHAMIA LANCEOLATA (LAMB.) HOOK] SEED ORCHARD

Fangyuan Yu1,Yousheng Chen1,Shihai Xiao2,Yuanhao Wang3,Rongzhuo Yu4   

  1. 1. Nanjing Forestry University Nanjing 210037
    2. Fujian Tree Seed and Seedling Station Fuzhou 350003
    3. Youxi Forest Farm in Fujian Province Youxi 365100
    4. Yangkou Forest Farm in Fujian province Shunchang 353200
  • Received:1995-10-06 Online:1997-05-25 Published:1997-05-25

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。

关键词: 杉木, 可见半面树冠, 信息段, 预测模型, 球果产量预测

Abstract:

An investigation at Youxi and Yangkou seed orchard of Chinese fir from 1991 to 1994 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 informative section of crown. Prediction models were developed for each method. The results verified at different seed orchards showed that the models could be used precisely and easily.

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