长白落叶松优良无性系造林增产效益研究

• 作 者: 刘录 朱弘 雷光志 温莉莉 宋清华 夏成才
• 机 构: 黑龙江省防护林研究所,龙江县错海林场,黑龙江省林业厅,克东县爱华林场
• 出 处: 林业科技通讯
• 发表日期: 1999年03期
• 关键词: 长白落叶松 优良无性系 增产效益 材积生长量 种子品质 生时 用材树种 树高 差异显著性 速生丰产林

１９８５年选择长白落叶松种子园优良无性系进行芽接，于１９８７年营造丰产林０４８ｈｍ２，以普通长白落叶松作对照。树龄８年生时，优良无性系树高、胸径、材积及每公顷蓄积量平均值分别为３９９ｍ、３４８ｃｍ、２０２×１０－４ｍ３和２２４４ｍ３，分别为对照１０６２％、１０３３％、１２３９％和１２３８％；１３年生时上述各因子平均值为７１８ｍ、７９４ｃｍ、２２６６×１０－４ｍ３和２５１７５ｍ３，分别为对照１３４５％、１２８３％、２２１７％和２２１８％。若用最优无性系与对照比较，增产幅度更大。优良无性系造林是高效林业的有效途径之一，也是今后营林事业发展的方向。因此，应选择生长快、结实多、种子品质优良的无性系通过嫁接用于造林，并将产生显著的社会、生态和经济效益

In 1985, Changbai Larch Seed Orchard was selected for sprouting. In 1987, a high yielding forest of 048hm2 was established, which was controlled by ordinary Changbai Larch. The mean tree height, DBH, volume and hectare volume per hectare at the age of 8 years were 399m, 348cm, 202 × 10-4m3 and 2244m3, respectively, which were respectively 1062% , 1033%, 1239% and 1238%, respectively. The mean values ​​of the above factors at 13 years old were 718m, 794cm, 2266 × 10-4m3 and 25175m3, respectively, as control 134 5%, 1283%, 2217% and 2218%. If using the best clones compared with the control, increase yield more. Fine clonal afforestation is one of the effective ways for efficient forestry, and it is also the direction for the development of forest management in the future. Therefore, clones with fast growth, strong seed quality and good seed quality should be selected for afforestation by grafting and will have significant social, ecological and economic benefits