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当前位置: 首页 > 文章 > 东北林区人工林与天然林红松木材材性的比较研究 林业科学 1963,8 (3) 195-213
Position: Home > Articles > COMPARATIVE STUDIES ON THE WOOD PROPERTIES OF THE PLANTATION-AND NATURAL-GROWN KOREAN PINES IN THE NORTHEASTERN FOREST REGION OF CHINA Scientia Silvae Sinicae 1963,8 (3) 195-213

东北林区人工林与天然林红松木材材性的比较研究

作  者：
成俊卿;李源哲;孙成志
摘  要：
红松(Pinus koraiensis Sieb.et Zucc.)的材质优良,工艺价值高,是我国一种最主要的用材树种,也是我国小兴安岭及长白山林区的主要森林树种。我国除存在大量的红松天然林外,还有一些红松人工林,近年来并大力提倡营造人工林。草河口林场的红松人工林培植于30年前,其林木特性及木材强度和容重在1959年甚至在此以前已有过研究,但对于基本材性(构造和物理、力学性质)方面的综合研究则尚未进行。基本材性是衡量材质的主要根据,而材质的优劣又是营林、木材生产和利用部门最关心的问题。为此作者等乃拟就本题,在立地条件类似的人工林和天然林内
译  名：
COMPARATIVE STUDIES ON THE WOOD PROPERTIES OF THE PLANTATION-AND NATURAL-GROWN KOREAN PINES IN THE NORTHEASTERN FOREST REGION OF CHINA
作  者：
CHENG,T.C.,LI Y.C.AND SUN C.C.(Institute of Wood Industries,Academy of Forest Science)
摘  要：
For each of the plantation-and natural-grown Korean Pines(Pinus koraiensis Sieb. et Zucc.)four sample trees had been selected in this study.In first place,results for comparison of the anatomical features and physico-mechanical properties of the fast- (plantation-)(a)and slow-grown(natural-grown)(b)Korean Pine timbers have been shown.Secondly,with the plantation-grown material the writers have proven the Turn- bull's hypothesis that the increase in density of coniferous wood from the pith outwards is determined solely by age from the pith and has nothing to do with ring-width.These conclusions may be indicated as follows: 1.In diameter growth,(a)grows 4 times faster more than(b);in length growth, about 3 times,(a)vs.(b).Tracheids in(a)are longer(ca.31%)and larger(early- wood,11%;latewood,28%)than in(b).Latewood percentage and density of(a)are 28% and 2% lower respectively than(b);but strength properties have been shown about the same.In case of comparison on their corresponding rings,(a)is generally heavier and stronger than(b).Thus the fact that the rapid growth,high yields and good qualities of Korean Pine timbers could be reached by a proper silvicultural treatment has been proven. 2.From pith outwards,tracheid length and growth ring width decrease more ap- parently;except the first few years,the variations of the diameter of tracheids,per- centage of both latewood and cell wall are small and fluctuate irregularly.The density and strength of(a)reach the maximum value at 9th to 18th growth rings;in(b),at 30th to 70th growth rings. 3.Upwards from height at 1.3—11.3 meters within a growth ring or scope of growth rings,tracheid length increases,but latewood percentage,density and so forth decrease.The strength properties except(b)the maximum value of which occurs at height of 5.3—7.3 meters and tends to increase outwards before 50 rings from pith,de- crease upwards. 4.The number of resin canals is in direct proportion to the width of growth rings. They are mostly distributed in the summerwood bands or(and)the transitional regions of early-and summerwood.

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