CAJ | 학술논문

通过对设置在福建省建瓯市东峰镇、房道镇两地5 a 生5个重复130个家系的木荷优树自由授粉家系试验林的调查，研究其胸径、树高、冠幅、通直度、一级分枝、最大分枝角度、枝下高、最大分枝粗、分叉干数、分叉干高度等家系差异，并依据方差分析结果进行速生优质家系和优良单株选择.结果显示：木荷家系生长存在显著或极显著变异，其中以单株材积的家系变异最大，通直度差异不显著.以试验林总体平均胸径、平均树高、平均通直度为选择标准，初选出32个优良家系，同时，初选出平均单株材积大于0．0059 m3、平均通直度大于3的最优家系7个，进而在最优家系内选择单株材积达到0．0120 m3以上、主干无分叉、通直度3以上，而且冠幅基本在2 m 以下、最大分支角度基本在65°以下的优良单株19株.
통과대설치재복건성건구시동봉진、방도진량지5 a 생5개중복130개가계적목하우수자유수분가계시험림적조사，연구기흉경、수고、관폭、통직도、일급분지、최대분지각도、지하고、최대분지조、분차간수、분차간고도등가계차이，병의거방차분석결과진행속생우질가계화우량단주선택.결과현시：목하가계생장존재현저혹겁현저변이，기중이단주재적적가계변이최대，통직도차이불현저.이시험림총체평균흉경、평균수고、평균통직도위선택표준，초선출32개우량가계，동시，초선출평균단주재적대우0．0059 m3、평균통직도대우3적최우가계7개，진이재최우가계내선택단주재적체도0．0120 m3이상、주간무분차、통직도3이상，이차관폭기본재2 m 이하、최대분지각도기본재65°이하적우량단주19주.
Two family experimental plantations of 5-year-old and 5-repeat and 130-family Schima superba were investi-gated on the aspects of diameter at breast height (DBH),crown breadth,straight degree,first class branch,maximum crotch angle,clear bole height,maximum branch thick,number of fork stems,and height of fork stems,in Dongfeng Town and Fangdao Town,Jian’ou,Fujian Province.The superior fast-growth families and superior individuals were se-lected by Analysis of Variance.The results showed that there were significant difference or very significant difference a-mong the families.32 superior families were selected based on average diameter,average height and straight degree.7 top families were selected based for the average individual volume was more than 0.005 9 cubic metres and the average straight degree was more than 3.The criteria for superior individual was that its volume of the individual was more than 0.012 0 cubic metres,and it had no fork stem,and its straight degree was more than 3,and its crown breadth was less than 2 meters,and its maximum crotch angle was less than 65 degree as the superior one and then 1 9 superior individuals among the 7 top families were selected.