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| 荆州引种火炬松木材基本密度的变异 | |
| 引用本文： | 徐有明,唐万鹏,林汉,吴天文,杨雄.荆州引种火炬松木材基本密度的变异[J].东北林业大学学报,1999,27(4):33-37. |
| 作者姓名： | 徐有明 唐万鹏 林汉 吴天文 杨雄 |
| 作者单位： | 1. 华中农业大学,武汉,430070 2. 湖北省林科院 3. 华中农业大学 4. 湖北省彭场林场 |
| 基金项目： | 国际科学基金!IFSD2260-2，湖北省资助!972P0814 |
| 摘 要： | 火炬松２１个种源间木材基本密度存在着显著的差异；基本密度与原产地纬度正相关显著，与年均温负相关显著。各种源株内径向基本密度呈递增的模式。各年轮段间基本密度正相关极其显著。５年生基本密度预测９年生、１２年生的木材基本密度。 |
| 关 键 词： | 火炬松 种源 木材 基本密度 早期预测 遗传地理变异 |
Wood Basic Density Variation in Provenances of Exotic Loblolly Pine Grown in Jingzhou of China |
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| Xu Youming,Tang Wanpeng,Lin Han,Wu Tianwen,Yang Xiong.Wood Basic Density Variation in Provenances of Exotic Loblolly Pine Grown in Jingzhou of China[J].Journal of Northeast Forestry University,1999,27(4):33-37. | |
| Authors: | Xu Youming Tang Wanpeng Lin Han Wu Tianwen Yang Xiong |
| Institution: | XuYouming(Depement of Forestry. Huazhong Agricultural University. Wuhan 430070. P. R. China); TangWanpeng(Hutei Provincial Forestry institute); Lin Han(Huazhong Agricultural University); Wu Tianwen;Yang Xiong(Penchang Forestry Farm of Hubei Province)(Jour |
| Abstract: | The significant difference in wood basic density was found among 21 provenances of 13-year-oldloblolly Pine grown in JingZhou of Hubei province in China. The basic density was clearly positiverelated to the latitude of these local provenances. and significantly negative to their annual meantemperature. In radial direction the basic d6nsity of individual trees within provenances increased frompith to bark. The early-late correlation coefficient of wood basic density between different growth stagesof trees was examined to be significant at 0. 001 level. The basic density of 5-year-old tree can be usedto predict that of older trees. Generally basic density was negatively correlated with height. diameter andvolume. but their correlation was not significant. Father analysis showed that the basic density in twoof these provences was positively correlated with trees groWth propefties. This should be noted in woodimprovement of exotic loblolly pine. |
| Keywords: | oblolly pine Provenance Wood Basic density Early Prediction Genetic and geographic Variation |
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