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一、前言自从1958年以来,河南省开发了天然次生林区,生产了大量木材,支援国家建設和供应人民生产生活的需要。这些木材从伏牛山天然次生林区采伐的占絕大比重。生长在这些林区的木材的物理力学性质从来沒有研究过。用材部門在使用河南省出产的木材时苦于缺少设计、計算指标;同时,河南省正在营造大面积速生用材林,河南省主要速生树种的材性如何?也是营林部門在选择速生树种时所关心的重要问题。因此,深入地进行河南省主要木材物理力学性貭的試驗研究工作,对恢复和发展我省林业生产和支援国家社会主义建設有着重大的意义。
I. Preface Since 1958, Henan Province has developed a natural secondary forest zone and produced a large amount of wood to support the nation’s needs for building and supplying the people’s productive life. The timber from the Funiu natural secondary forest logging accounted for the vast majority. The physical and mechanical properties of wood grown in these forests have never been studied. In the meantime, Henan Province is creating large-scale fast-growing timber forests. What is the material nature of the major fast-growing tree species in Henan Province? It is also the concern of the forest management department when choosing fast-growing tree species important question. Therefore, the in-depth experimental research on the major timber physical mechanics in Henan Province is of great significance for the restoration and development of forestry production in our province and for the support of the national socialist construction.