| 截干对红松人工幼龄林侧枝生长的影响 |
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| 引用本文： | 康迎昆,聂维良,邓贵春,李正华,郭成博,张海峰,李春明.截干对红松人工幼龄林侧枝生长的影响[J].林业科技,2020,45(1):9-11. |
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| 作者姓名： | 康迎昆 聂维良 邓贵春 李正华 郭成博 张海峰 李春明 |
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| 作者单位： | 黑龙江省林业科学研究所,黑龙江 哈尔滨,150081;黑龙江省林口林业局,黑龙江 林口,157621 |
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| 基金项目： | “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) |
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| 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。
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| 关 键 词： | 红松 截干 比例 轮枝 |
Effect of Pruning of the Grown of Round Branches of Pinus koraiensis Sapling Plantation |
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| Institution: | (Forestry Science Research Institute of Heilongjiang Province,Harbin 150081) |
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| Abstract: | 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. |
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| Keywords: | Pinus koraiensis Pruning Proportion Round branches |
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