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| 章古台地区樟子松年轮宽度和管胞长度的径向变异 | |
| 引用本文： | 齐锦秋,郝建锋,吴忠,古川郁夫.章古台地区樟子松年轮宽度和管胞长度的径向变异[J].辽宁林业科技,2009(1):14-17. |
| 作者姓名： | 齐锦秋 郝建锋 吴忠 古川郁夫 |
| 作者单位： | 1. 四川农业大学,四川,雅安,625014 2. 辽宁省阜蒙县福兴地学校,辽宁,阜蒙,123106 3. 日本鸟取大学,鸟取,680-8550 |
| 基金项目： | 致谢：在樟子松样木采集过程中,得到原辽宁省章古台治沙造林研究所吴祥云所长的大力协助,在此深表谢意! |
| 摘 要： | 对章古台地区不同密度樟子人工林松年轮宽度和管胞长度进行测定，结果表明：章古台地区胸径年轮数30a的樟子松林，已出现生长衰退现象，生长衰退期开始林龄与林分密度有关，降低林分密度可延缓衰退期出现林龄。樟子松管胞长度与距离髓心的年轮数之间存在Y=alnx＋b（Y：管胞长度；X：距离髓心的年轮数．b：第1年轮的管胞长度）关系。不同密度樟子松年轮宽度不同，但管胞长度与未成熟材范围无显著变化，未成熟材范围距离髓心的年轮数均为21～23a。 |
| 关 键 词： | 樟子松 年轮宽度 管胞长度 未成熟材 成熟材 |
Horizontal variations in ring width and tracheid length of Pinus sylvestris var.mongolica in Zhanggutai |
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| QI Jin-qiu,HAO Jian-feng,WU Zhong,Furukawa Ikuo.Horizontal variations in ring width and tracheid length of Pinus sylvestris var.mongolica in Zhanggutai[J].Liaoning Forestry Science and Technology,2009(1):14-17. | |
| Authors: | QI Jin-qiu HAO Jian-feng WU Zhong Furukawa Ikuo |
| Institution: | QI Jin-qiu, HAO Jian-feng, WU Zhong, Furukawa Ikuo ( 1. Sichuan Agricultural University, Ya＇ an 625014, China; 2.Fuxingdi School of Fuxin Mongolian Autonomous County of Liaoning Province, Fuxin Mongolian Autonomous County 123106, China; 3. Faculty of Agriculture, Tottori University, Koyama Tottori 680-8550, Japan) |
| Abstract: | The ring width and tracheid length for different densities of artificial Pinus sylvestris var. mongolica plantations in Zhang-gutai were measured. The results indicated that growth declined in Pinus sylvestris var. mongolica plantations with ring number 30 in Zhanggutai. Starting ages for growth decline were correlated with ages and densities of stands and could be delayed by decreased den-sities of stands. The relationship between tracheid length and ring number from pith of Pinus sylvestris var. mongolica... |
| Keywords: | Pinus sylvestris var mongolica ring width tracheid length juvenile wood mature wood |
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