马尾松生长性状与生长应力的关系  

Relationship between Growth Traits and Growth Stress of Masson Pine

作　　者：周亮[1] 刘盛全[1] 朱永侠[1] 黄振英[1] 邵卓平[1] 

机构地区：[1]安徽农业大学林学与园林学院,合肥230036

出　　处：《林业科学》2008年第6期101-108,共8页Scientia Silvae Sinicae

基　　金：国家自然科学基金资助项目(30371131)

摘　　要：选取3块不同立地条件的马尾松试验林(沙河集纯林、八公山纯林和混交林),从中选取具有3种树干形态(直立、倾斜和弯曲)的马尾松共24株,测定其立木生长性状,随后采用钻孔法测定不同周向位置立木表面轴向生长应力,分析两者之间关系。结果如下:1)多因素方差分析表明:主效应周向相对位置对生长应力指示值(GSI)影响在0.001水平上显著;周向相对位置和树高分段的二元交互效应对GSI影响在0.05水平上显著,其余效应对GSI影响均不显著;2)偏相关分析研究中,在直立树干所有自变量与GSI之间的偏相关系数均不显著;倾斜树干中,周向相对位置与GSI之间正偏相关系数在0.05水平上显著,其余自变量与GSI之间偏相关系数均不显著;弯曲树干中,周向相对位置与GSI之间正偏相关系数也在0.05水平上显著。综合分析多因素方差分析和偏相关分析表明,对于不同树干形态,立木的高径比、倾斜角、冠形因子对表面轴向生长应力的影响程度不尽相同。研究认为,可以通过间伐降低直立树干和弯曲树干的高径比,从而能在一定程度上降低马尾松立木的轴向表面生长应力,通过控制倾斜角和冠性因子也可以一定程度上影响倾斜树干轴向表面生长应力的大小和分布。In this paper, three Masson Pine（ Pinus massoniana） plantation（ Bagongshan pure plantation and mixed plantation, and Shaheji pure plantation） which under different growth conditions were selected as researching materials. The growth traits of totally twenty four trees in three different stem shape（ straight, lean, curve） were measured firstly, and the drilled-hole method was implemented to determine the longitudinal growth stress at different relative position of periphery of trunk subsequently. The relationship between growth traits and longitudinal growth stress was analyzed further, the result indicated： The multivariate ANOVA suggested one of main effects, relative position at periphery, significantly affected growth stress indicator（GSI） at 0.001 levels. One of dualistic interaction between relative position at periphery and subsection factor of tree height also had significant effect on the GSI at 0.05 levels. There no other effects had been found to hold obvious relationship with GSI. The partial correlation coefficient between GSI and all growth characters of straight tree were unobvious. In the leaned tree, significant partial correlation was found between relative position of periphery and GSI at 0.05 levels, and no other apparent correlations could be detected in leaned tree. Similar partial correlations were found in curved tree. When result of both multivariate ANOVA and partial correlation analysis were considered comprehensively, the general information suggested that ratio of tree height to diameter at breast height（DBH） of tree, leaned angle and parameters of crown shape could direct influence longitudinal growth stress of periphery of trunk at some extent, however, the degree of effect varied among three different trunk shapes. Thereafter, thining could reduce the ratio of tree height to DBH, and decrease the growth stress of straight and curved Masson Pine tree accordingly. In addition, the severity and distribution of longitudinal growth stress of leaned pine tree could b

关 键 词：马尾松 生长性状 生长应力 相互关系 

分 类 号：S781.3[农业科学—木材科学与技术]