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为优选杉木种源、制定速生丰产林的定向培育措施，按照《木材物理力学性质试验方法》的规定，对江苏省句容县、江西省分宜县、广西省柳州市三个试验点的三十三个杉木种源木材的气干密度、顺纹抗压强度、抗弯弹性模量和抗弯强度等主要物理力学指标进行了测定分析，结果表明：同生长点不同种源间存在差异，同种源不同生长点间也存在差异，随着生长点纬度的增加，材性指标也有渐增的趋势；在一定程度上地理环境因素比遗传因素对材性的影响更为显著
In order to optimize the provenance of Cunninghamia lanceolata, the cultivation of directional cultivation of fast-growing and high-yielding forests was established. According to the provisions of “Test Method of Physical and Mechanical Properties of Wood”, the trichotomy of three provenances in Jurong County of Jiangsu Province, Fenyi County of Jiangxi Province and Liuzhou of Guangxi Province Thirteen fir provenance wood air-dry density, compressive strength along the grain, flexural modulus and flexural strength of the major physical and mechanical indicators were measured and analyzed, the results show that: with the growing point of different provenances there are differences, There are also differences among different growth sites of the same species source. With the increase of the latitude of the growth point, the material properties also have a tendency to increase. To a certain extent, the influence of geo-environmental factors on the material properties is more significant