不同红豆树人工林生长和心材特性的差异  

Growth and heartwood characteristics of Ormosia hosiei plantations

作　　者：张蕊[1] 王秀花[1] 陈柳英[2] 冯建国 周志春[1] 

机构地区：[1]中国林业科学研究院亚热带林业研究所,浙江富阳311400 [2]福建省建瓯市林业科技推广中心,福建建瓯353100 [3]浙江省龙泉市林业科学研究所,浙江龙泉323700

出　　处：《浙江农林大学学报》2012年第3期412-419,共8页Journal of Zhejiang A&F University

基　　金：农业科技成果转化资金资助项目(2010GB24320616);中央级公益性科研院所基本科研业务费专项资金资助项目(RISF6809);杭州市农业科研攻关专项(20080632B43)

摘　　要：选用浙闽23~38年生的8块红豆树Ormosia hosiei人工片林,以研究立地条件、林分密度和林龄等对红豆树人工林生长和材质材性的影响,同时探讨这些因子对红豆树心材生长特性的作用。结果表明：人工栽植的红豆树分叉干率较高（59.1%）、树干通直度较低,需加强修枝和抹芽等促使其优质干材的形成和生长。好的立地条件和适宜的林分密度有利于促进红豆树径向生长和木材积累量。红豆树人工林木材基本密度中等,为0.50～0.59 g.m-3,平均为0.543 2 g.m-3,较少受立地和林龄的影响。木材基本密度从髓心向外呈逐渐增加的趋势,第35轮后趋于平缓或下降,其径向均匀性相对较高。红豆树心材半径和心材面积分别与胸径呈显著的线性正相关（R2=0.749,F1,315=17.91,P=0.005）和幂函数正相关（R2=0.7719,F1,315=20.3,P=0.004）关系,可通过延长培育周期和提高径生长量等来培养大径阶、高心材率的红豆树优质干材。In order to study the effects of site conditions,planting densities,and stand ages to the growth and wood characteristics of Ormosia hosiei plantations,we used twenty-three,38-year-old plantations of O.hosiei,and analyzed the growth and heartwood characteristics with statistical methods.Trees were grown in eight different locations of two provinces（Zhejiang and Fujian） and represented different site conditions,planting densities（630-500 tree.hm-2）,and stand ages.Choosing typical site-plot（15 m × 20 m） and made each trees survey（20-50 sample trees）.The survey contained the height,diameter at breast height（DBH）,stem straight,stem fullness and stem forking,after that,wood cores was picked.Results showed that O.hosiei exhibited more stem forking（59.1%） and lower stem straightness than other wood plants.O.hosiei grew faster in the early stages than other wood species.The wood basic density（WBD） of O.hosiei,which was ranging from 0.50-0.59 g.m-3,was similar for each site,and having an average of 0.543 2 g.m-3.WBD had an increasing tendency from pitch to outside（1-5 rings： 0.497 6 g.m-3,6-10 rings： 0.524 6 g.m-3,11-15 rings： 0.544 8 g.m-3,16-20 rings： 0.560 5 g.m-3,21-25 rings： 0.566 1 g.m-3,26-30 rings： 0.566 7 g.m-3,31-35 rings： 0.571 0 g.m-3,and 36-40 rings： 0.552 7 g.m-3）,and having a relatively stable state after the 35th annual ring.But radial uniformity was higher,the average of the standard deviation was 0.031.Heartwood ra-dius（HR）was significant,linear,and positively correlated to DBH（R2=0.749,F1,315=17.91,P=0.005）,and heartwood area（HA）was correlated significantly and positively as a power function to DBH（R2=0.771 9,F1,315=20.3,P=0.004）.Thus,recommendations were the following：timely pruning and wipingaway the buds to produce high grade trunk wood,utilizing good site conditions and suitable planting densitiesto promote radial growth and volume,and extending the breeding-cycle and increasing the diameter growth-rate to increase the timber diamete

关 键 词：森林培育学 红豆树 人工林 生长 木材基本密度 心材 

分 类 号：S727.1[农业科学—林木遗传育种]