摘要
以福建省漳浦中西林场2011年采用3种苗木(分别为实生苗、组培苗、嫁接苗)营建的黑木相思试验林为研究对象,对1年生、10年生的林分调查数据进行对比分析,探究不同起源苗木的造林效果.结果表明:实生苗、组培苗、嫁接苗造林成活率分别为96.6％、96.6％、92.3％,1年生时3种林分的各生长性状差异均不显著.10年生时,3种林分的树高、胸径存在极显著差异,枝下高、材积存在显著差异,只有冠幅差异不显著.其中以实生苗造林的林分树高、胸径、材积生长优势最明显,分别达15.5 m、14.4 cm、0.128 m3,干形较通直;嫁接苗造林生长情况逊色于实生苗造林,组培苗造林生长优势不明显.
Abstract
Taking the Acacia melanoxylon experimental forest built in 2011 in Zhangpu West Forest Farm of Fujian Province as the research object,the afforestation effect of different seedling types was explored.Taking the survey data of 1 and 10 a stands,the affor-estation of seedlings,tissue culture seedlings and grafted seedlings was compared by variance analysis and multiple comparison.The average survival rate of seedlings was 96.7％,the average DBH was 14.4 cm,and the average volume was 0.128 m3.The average survival rate of tissue culture seedlings was 96.6％,the average DBH was 13.0 cm,and the average volume was 0.102 m3.The aver-age survival rate of grafted seedlings was 92.3％,the average DBH was 13.6 cm,and the average volume was 0.105 m3.The results showed that there were significant differences in tree height and DBH in the Acacia melanoxylon experimental forest.The results of multiple comparison showed that there were significant differences in the afforestation of three types of seedlings.Through comprehen-sive analysis,the effect of seedling afforestation is the best.Its seedling growth was rapid,the stand was neat,the growth advantage was obvious,the volume was large,and the stem shape was relatively straight.The growth of grafted seedlings was inferior to that of seedling afforestation,and the growth advantage of tissue culture seedlings was not obvious.
维普
万方数据