红豆树立木的主要性状特征研究(Ⅱ)  

Main Characteristics of the Ormosia hosiei Hemsl. et Wils. Living Trees

作　　者：郑天汉[1] 李健英[2] 黄兴发 

机构地区：[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

出　　处：《林业科技开发》2009年第1期68-71,共4页China Forestry Science and Technology

基　　金：福建省科技厅科技攻关重点项目"红豆树优良种质选择与速生丰产栽培技术研究"(编号:2005N044)

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。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 function relations, the diameter of heartwood and the tree height could be described by the logarithm model. The correlation between the diameter of heartwood and the DBH as well as the crown length was fitted by the linear relation. When the rate of heartwood of the Ormosia hosiei Hemsl. et Wils. trees was more than 2 times of standard deviation, the superior individuals of which the rate of heartwood was 90.2 could be selected. The correlation between the diameter of grade I lateral branches and the DBH as well as the crown length were fitted by the linear relation, while there were no significant relations between the diameter of grade I lateral branches. In the stand of Ormosia hosiei Hemsl. et Wils. ,the number of grade Ⅰ , Ⅱ, Ⅲ, Ⅳ and Ⅴ tree were 33.7%, 21.1% , 24.7% , 17.5% and 3% of total trees investigated, respectively. Meanwhile, the correlation between the crown length and the DBH as well as the tree height of Ormosia hosiei Hemsl. et Wils. were fitted by the linear model and the logarithm model, respectively, and the correlation between the crown width and the DBH could be described by the logarithm model.

关 键 词：红豆树 性状特征 回归方程 

分 类 号：S791.49[农业科学—林木遗传育种] S513[农业科学—林学]