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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,贵州锦屏,福建建瓯,广西融水是适用于建筑材定向培育的优良种源。南带广西浦北、广东信宜和北带陕西汉中、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。
The wood properties of 12 Chinese fir provenances at 4 test sites were studied. The results showed that the physical and mechanical properties and fiber characteristics of the provenances were significantly different, and the variation of wood chemical components was relatively small. From the main properties related to building materials, it is found that the south and north subtropical provenances are good and the mid-subtropical provenances have a weak tendency of “V” shape. The temperature factor of origin of provenances is the main factor that affects the variation of wood properties. After comprehensive evaluation, Guizhou Jinping, Fujian Jianou, Guangxi meltwater is an excellent provenance suitable for oriented cultivation of building materials. The southern belt of Pubei, Guangxi, Xinyi of Guangdong and northern Hanzhong of Shaanxi Province, Anhui Huoshan provenance material better performance, can be used in provenance hybrids or clonal selection and improvement.