| 长白落叶松生长性状早晚相关及早期选择的研究 |
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| 引用本文： | 刘菊荣 吕宝山. 长白落叶松生长性状早晚相关及早期选择的研究[J]. 林业科技, 1996, 21(4): 15-17 |
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| 作者姓名： | 刘菊荣 吕宝山 |
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| 作者单位： | 黑龙江省林业科学院，黑龙江省林口县林业局 |
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| 摘 要： | 本文对３０年生９０株人工长白落叶松树干解析生长变异及早期预测进行了研究，结果表明，树高、胸径、材积的变异随着年龄增大而减小，１４～１８龄是生长变异由剧烈分化到趋向稳定的转折年龄，此时树高、胸径、材积等的幼龄至成熟龄相关达极显著水平，选择效率也处在较高水平，确定长白落叶松早期选择年龄为１４年。
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| 关 键 词： | 长白落叶松；生长变异；幼－熟龄；相关；最佳选择年龄；选择效率 |
STUDY ON EARLY AND LATE INTERRELATION OF GROWTH PROPERTIES AND EARLY SELECTION FOR LARIX OLGENSIS |
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| Liu Jurong. STUDY ON EARLY AND LATE INTERRELATION OF GROWTH PROPERTIES AND EARLY SELECTION FOR LARIX OLGENSIS[J]. Forestry Science & Technology, 1996, 21(4): 15-17 |
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| Authors: | Liu Jurong |
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| Affiliation: | Forestry Academy of Heilongjiang Province |
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| Abstract: | In this article, 90 trees of artifical Lalix olgensis growth for 30 years are studied in growth variation of stem analysis and calculation in early period. The study result shows that the height, breast diameter and timber volume from young growth to mature forest correlation have reached extremely remarkable level, as well as the selection efficiency is at the higher level and the selective age of Larix olgensis in early period is defined for 14 years. |
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| Keywords: | Larix olgensis Growth variation Young to mature forest Correlation best Selection age selective efficiency |
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