杉木短轮伐建筑材优良种源选择研究  

Study on elite provinance selection of Cunninghamia lanceolata for short rotation timber

作　　者：李晓储[1] 黄利斌[1] 孙罗春 范科双 杜晓祥 金一平 吕剑南 华自忠 卢洪霖 孙成志[3] 谢国恩[3] 

机构地区：[1]江苏省林业科学研究所 [2]句容县林场 [3]中国林科院林产化工研究所

出　　处：《江苏林业科技》1993年第3期1-7,12,共8页Journal of Jiangsu Forestry Science & Technology

基　　金：江苏省科委下达的农业基金研究项目;国家重点科技攻关协作项目

摘　　要：对苏南宁镇丘陵中等立地条件,初植密度2400株/hm^2,9年生种源试验林(10年生幼树)19个杉木种源的生长和木材建筑材性的研究表明,种源间存在着显著的差异。变异方差分量:生长性状>材性性状。材性性状:抗弯强度>气干密度>顺纹抗压强度>干缩系数。产地温度气象因子(年均温,≥10℃年积温)是影响种源材性性状变异的主要作用因子。供试种源的材性材质,北带>南带>中带。综合评定,初步选出广西融水,江西全南种源和广东信宜,广西贺县种源为当地杉木短轮伐建筑材优良种源,可分别用于短轮伐中小径材集约经营和农用椽材、小径材作业造林。The growth and the timber features of 19 provinances of Cunningha-mia lanceolata in 9 years old provinace test plantation, where the plant density it 2400 plants/hm^2 under the middle site condition in Nin-zheng hilly mountains was conducted. The research results indicated that the obvious different was existed between provinances, the timber features shown bend strength>air dried density>compressive strength>shrivelled index. Local temperature factor(mean year temperature and≥l0℃ accumulated temperature) mainly affected timer feature variation of provinace. After comprehensively analysised, the selected elite provinances for short rotation timber are Rongshui and Houxian in Guangxi, Quannan in Jiangxi, Xingyi in Guang dong, which could be used for the culture of small grade timber, middle-small timber intensive forestry, house rafter and building timber. Authors' address: Dongshanqiao, nanjing, 211153, PRC

关 键 词：杉木 轮伐 建材 良种 选择 

分 类 号：S791.270.8[农业科学—林木遗传育种]