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| 红豆树立木的主要性状特征研究(Ⅱ) | |
| 引用本文： | 郑天汉,李健英,黄兴发.红豆树立木的主要性状特征研究(Ⅱ)[J].林业科技开发,2009,23(1). |
| 作者姓名： | 郑天汉 李健英 黄兴发 |
| 作者单位： | 1. 福建省林业厅,福州,350003 2. 福建农林大学 3. 浦城寨下国有林场 |
| 基金项目： | 福建省科技厅重点项目 |
| 摘 要： | 红豆树胸高心材出现在10 a以后,相同立地环境且同龄的红豆树立木,其心材出现有迟早和大小的差别.心材材积与胸径呈幂函数关系、心材直径与胸径呈直线关系、心材直径与树高呈对数关系、心材直径与冠长呈直线关系、心材直径比率与胸径呈自然对数函数关系;红豆树心材率达2倍以上标准差进行优树选择时,可望选出选择差较大、心材比率在90.2%的优树.Ⅰ级侧枝枝粗与胸径、冠长呈直线关系,与树高关系、枝下高不存在有实际意义的相关关系.红豆树林分中,通直的Ⅰ级木占调查样本数的33.7%、Ⅱ级木占21.1%、Ⅲ级木占24.7%、Ⅳ级木占17.5%、Ⅴ级木占3%.冠长与胸径呈直线关系、与树高呈对数关系,冠幅与胸径呈对数关系. |
| 关 键 词： | 红豆树 性状特征 回归方程 |
Main Characteristics of the Ormosia hosiei Hemsl. et Wils. Living Trees |
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| ZHENG Tian-han,LI Jian-ying,HUANG Xing-fa.Main Characteristics of the Ormosia hosiei Hemsl. et Wils. Living Trees[J].China Forestry Science and Technology,2009,23(1). | |
| Authors: | ZHENG Tian-han LI Jian-ying HUANG Xing-fa |
| Institution: | ZHENG Tian-han,LI Jian-ying,HUANG Xing-fa Forestry Department of Fujian Province,350003 Fuzhou,China |
| Abstract: | The main characteristics of the Ormosia hosiei Hemsl.et Wils.living trees were studied in this paper.The results showed that the heartwood at breast height of the Ormosia hosiei Hemsl.et Wils.appeared when the stand was ten years old.The age at which the heartwood at breast height appeared and the size of individuals were different even though the trees grew in the same site condition with the same age.The timber volume of heartwood and the diameter at breast height(DBH) could be described by the power func... |
| Keywords: | Ormosia hosiei Hemsl et Wils Characteristic Regression equation |
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