截干对红松人工幼龄林侧枝生长的影响  

Effect of Pruning of the Grown of Round Branches of Pinus koraiensis Sapling Plantation

作　　者：康迎昆 聂维良 邓贵春 李正华 郭成博 张海峰 李春明 KANG Yingkun(Forestry Science Research Institute of Heilongjiang Province,Harbin 150081)

机构地区：[1]黑龙江省林业科学研究所,黑龙江哈尔滨150081 [2]黑龙江省林口林业局,黑龙江林口157621

出　　处：《林业科技》2020年第1期9-11,共3页Forestry Science & Technology

基　　金：“十三五”国家重点研发计划课题“东北森林区生态保护、红松资源开发利用技术集成与示范”(2016YFC0500308)

摘　　要：以红松人工幼龄林(10年生)为研究对象,开展不同截干处理的结果表明,红松截干(按比例、轮枝)对侧枝生长影响显著。1/3截干轮枝基径、轮枝长平均值最大值(11.08、1.022)分别比对照高出140.87%、354.22%;三轮截干轮枝基径、轮枝长平均值最大值(8.11、0.51)比对照高出298.52%、211%。1/3截干平均值(11.08、1.022)比三轮平均值(8.11、0.51)要大,1/3截干最好。This study researched on sapling of Korean pine, carrying out extensive research on different pruning pattern, including by proportion(quarter, one-third, half of crown height, treatment) and by different round branches from top(first,second,third) and controls.The results showed that: All treatments significantly improved diameter and length of round branches. When one-third of crown height were pruned, the promotion was most significant,the diameter of round branches were 140.87% higher than control,the length of round branches were 354.2% higher than control. When third round branches were pruned, the promotion was most significant, the diameter of round branches were 298.5% higher than control,the length of round branches were 211% higher than control. The pruning of stem has a great influence on the growth of lateral branches of 10-year-old Korean pine, but it has little influence on the growth of DBH due to the short test period.

关 键 词：红松 截干 比例 轮枝 

分 类 号：S791.247[农业科学—林木遗传育种]