| 杉木地理种源材性变异及建筑材优良种源评估 |
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| 引用本文： | 孙成志,谢国恩.杉木地理种源材性变异及建筑材优良种源评估[J].林业科学,1993,29(5):429-437. |
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| 作者姓名： | 孙成志 谢国恩 |
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| 作者单位： | 中国林业科学研究院林产化学工业研究所 南京210037 |
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| 基金项目： | 国家重点“杉木地理种源选择”研究的“七五”攻关项目之一 |
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| 摘 要： | 对４个试验点１２个杉木种源的材性测定研究表明，种源间木材物理力学性质和纤维特征有较明显的变异，木材化学组分的变异相对较小。从与建筑材相关的主要性质发现南，北亚热带种源好，中亚热带种源较差的“Ｖ“形纬向变异趋势。种源原产地的气温因子是影响材性变异的主要作用因子。经综合评定，贵北，广东信宜和带陕西汉中，安徽霍山种源材质性能较好，可以在种源杂交或无性系选择中改良利用。
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| 关 键 词： | 杉木 种源 评估 |
VARIATIONS OF WOOD PROPERTIES AND CHARACTERISTICS AND A TENTATIVE SELECTION FOR STRUCTURAL TIMBERS OF CUNNINGHAMIA LANCEOLATA PROVENANCES |
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| Sun Chengzhi Xie Guoen Li Ping.VARIATIONS OF WOOD PROPERTIES AND CHARACTERISTICS AND A TENTATIVE SELECTION FOR STRUCTURAL TIMBERS OF CUNNINGHAMIA LANCEOLATA PROVENANCES[J].Scientia Silvae Sinicae,1993,29(5):429-437. |
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| Authors: | Sun Chengzhi Xie Guoen Li Ping |
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| Abstract: | Studies on wood properties and characteristics of Cunninghamia lanceolataof twelve provenances from four provenance trials were taken, and show thatthe variations of wood properties and characteristics and anatomy of fibersfrom these provenances, are notable, that of chemical components are muchlittle. According to requirment of constructal wood properties, such as airdried density, maxium compressive strength parallel to the grain, maxiumbending strength and modulus of elasticity bending strength et al., obviouslythese provenances are distinguished as better (in Northern and Southern ofsubtropics) and slightly poorer(in central of subtropics). The chimate factorsare main effective factors to affect the variations of wood properties andcharacteristics. By means of comprehensive assessment, results are illustratedas following: provenances in Jingping, Guijhou province; Jian'ou, Fujianprovince and Rongshui, Guangxi province are more suitable seed resourcesfor plantations of constructal wood; those in Pubei, Guangxi province, Xingyi,Guangdong province, and Hanzhong, Shaanxi province, Huoshan, Anhuiprovince are suitable for utilization of hybridization of seed resources or sele-ction of clonal seeds. |
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| Keywords: | Cunninghamia lanceolata provenance Wood qualites and properties and characteristics Geogrophical variation Linear relation Effect factors Comprehensive assessment |
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