不同修枝方法和修枝强度对檀香幼林生长影响研究  

Effects of Different Pruning Methods and Pruning Intensity on the Growth of Young Santalum album L.Forest

作　　者：陆克宇 Lu Keyu(State-Owned Huangmian Forest Farm of Guangxi Zhuang Autonomous Region,Luzhai,Guangxi 545600,China)

机构地区：[1]广西壮族自治区国有黄冕林场,广西鹿寨545600

出　　处：《绿色科技》2023年第3期99-102,共4页Journal of Green Science and Technology

摘　　要：为探讨修枝对檀香幼林生长影响,在广西上思县华兰村檀香规模化种植示范基地内进行了不同修枝方法和修枝强度对檀香幼林生长影响的试验。结果表明:采用不同的修枝方式,试验地2#C1、2#D1、2#C2和2#D2的优良木的比例分别为53.33%、50%、23.33%和16.67%;中等木的比例分别为40%、43.33%、46.67%和36.67%;劣质木的比例分别为6.67%、6.67%、30%和46.67%,经比较P值均<0.05,且连续修枝对提高檀香幼树树高、胸径和枝下高的作用显著(P<0.05),且采用连续修枝的方式更有利于檀香幼木的干形塑造(P<0.05)。采用不同强度的修枝,试验地2#C1、2#D1、2#C2和2#D2的优良木的比例分别为10%、23.34%、26.75%和38.33%;中等木的比例分别为42.5%、41.67%、48.34%和50.83%;劣质木的比例分别为47.50%、35%、16.67%和10.83%,经比较P值均<0.05,且以采用树高1/2高度以下的所有侧枝进行修剪的方式檀香幼林的生长量最好(P<0.05),且优良木的比重更高(P<0.05),更有利于檀香幼木的干形塑造(P<0.05)。为此,提出了在檀香定植当年开始修枝,能有效促进檀香幼林生长,提高顶端优势,但考虑林木过于幼小,可以采取适当修剪影响顶芽生长的侧枝的1/2,提高植株的光合作用,促进顶芽生长;但过度修枝则不利于檀香树形的综合评价。In order to explore the effects of pruning on the growth of young Santalum album L.forest,experiments were conducted on the effects of different pruning methods and pruning intensity on the growth of young Santalum album L.forest in Hualan Village,Shangsi County,Guangxi Province.The results showed that the proportion of excellent trees in 2#C1,2#D1,2#C2 and 2#D2 were 53.33%,50%,23.33%and 16.67%respectively with different pruning methods;The proportion of medium wood is 40%,43.33%,46.67%and 36.67%respectively;The proportion of inferior wood was 6.67%,6.67%,30%and 46.67%respectively,and the P values were all less than 0.05 after comparison.Continuous pruning had a significant effect on increasing the height,diameter at breast height and height under branches of young Santalum album L.trees(P<0.05),and continuous pruning was more conducive to shaping the trunk shape of young Santalum album L.trees(P<0.05).Using pruning with different strength,the proportion of excellent trees in 2#C1,2#D1,2#C2 and 2#D2 of the test site was 10%,23.34%,26.75%and 38.33%respectively;The proportion of medium wood is 42.5%,41.67%,48.34%and 50.83%respectively;The proportion of inferior trees was 47.50%,35%,16.67%and 10.83%respectively,and the comparison P values were all<0.05.The growth of young Santalum album L.forest was the best(P<0.05)by pruning all lateral branches below 1/2 height of the tree,and the proportion of superior trees was higher(P<0.05),which was more conducive to shaping the dry shape of young Santalum album L.trees(P<0.05).The results showed that pruning started in the year when Santalum album L.was planted,which effectively promoted the growth of young Santalum album L.forest and improved the top advantage.However,considering that the forest was too young,1/2 of the lateral branches that affected the growth of terminal buds could be appropriately pruned to improve the photosynthesis of plants and promote the growth of terminal buds.However,excessive pruning is not conducive to the comprehensive evaluation of Santalum al

关 键 词：檀香 修枝 方式 生长 

分 类 号：Q949.741[生物学—植物学]