闽北杉木丰产林优良单株选择研究  

Study on the Selection of Superior Individuals of Cunninghamia lanceolata High-yield Forest in Northern Fujian

作　　者：苏少川 Su Shaochuan(Jianyang District Forestry Science and Technology Center,Nanping City,Fujian Province,Nanping 354200,China)

机构地区：[1]福建省南平市建阳区林业科学技术中心,福建南平354200

出　　处：《防护林科技》2025年第2期36-40,共5页Protection Forest Science and Technology

基　　金：国家林业和草原局杉木工程技术研究中心资助项目(902/6213C011103)。

摘　　要：以闽北杉木丰产林为研究对象,开展优良单株选择研究,筛选出可供生产上应用的优良无性系,进而提高杉木林分的生产力。应用大样地调查法,在福建省杉木中心产区杉木高产林分中,对选优区林分24年生杉木进行优株预选,采用异常数据t检验法筛选优树。结果表明:从24年生杉木优选林分中选出2株优树,分别为建阳A001和建阳A002。与所在高产林分调查样本平均木比较,优株胸径增量分别为92.76%和80.82%,树高增量分别为52.24%和44.38%,材积增量分别为430.90%和346.36%;优株胸径比其7 m半径范围内竞争木的平均值分别高35.05%和39.22%。建阳A001号杉木优树生长前期胸径随时间变化逐渐增大;树高增长较快,在15 a后增长速度减慢;材积在前5 a随时间变化较小,后随时间增加快速增长。Taking the Cunninghamia lanceolata high-yield forest in northern Fujian as the research object,the study on the selection of superior individuals was carried out to screen out the superior clones for production application,so as to improve the productivity of Cunninghamia lanceolata forest stand.In the high-yield stand of Cunninghamia lanceolata of the central production area of Cunninghamia lanceolata in Fujian Province,the 24-year-old Cunninghamia lanceolata in the preferred stand was pre-selected by the large sample plot survey method,and the superior trees were screened by the abnormal data t test method.The results showed that two superior plants were selected from the 24-year-old preferred stand of Cunninghamia lanceolata,which were Jianyang A001 and Jianyang A002,respectively.Compared with the average tree of the survey sample in the high-yield stand,the increment of DBH of the superior plant was 92.76%and 80.82%,the increment of tree height was 52.24%and 44.38%,and the increment of volume was 430.90%and 346.36%,respectively.The DBH of superior plant was 35.05%and 39.22%higher than the average value of competitive trees in the range of 7m radius.The DBH of Jianyang A001 Cunninghamia lanceolata superior tree increased gradually with time in the early stage of growth.The tree height increased rapidly,and the growth rate slowed down after fifteen years.The volume changed little with time in the first five years,and then increased rapidly with time.

关 键 词：杉木 优株选择 t检验法则 

分 类 号：S791.270.4[农业科学—林木遗传育种]