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当前位置: 首页 > 文章 > 红松人工林树冠大小与果实产量关系的研究 植物研究 2015,35 (3) 443-449
Position: Home > Articles > The Relationship between Crown Size and Pine Nut Yield for Korean Pine Plantation Bulletin of Botanical Research 2015,35 (3) 443-449

红松人工林树冠大小与果实产量关系的研究

作  者：
张强;董利虎;李凤日
单  位：
东北林业大学
关键词：
红松人工林;树冠体积;树冠表面积;结实量
摘  要：
以黑龙江省佳木斯市孟家岗林场红松人工林为研究对象,基于12块样地70株枝解析数据及21块固定样地2008~2010年的结实量数据,利用异速生长方程建立立木树冠体积和表面积预估模型,同时对树冠大小与欠年、平年、丰年的红松结实量进行了相关分析。结果表明:树冠体积和表面积与冠长、胸径、冠幅和树高均显著相关,其中与胸径相关系数最大,与树高相关系数最小。本文所建立的模型确定系数R2都在0.55以上,预测精度大多数在85%以上。利用所建立的树冠体积与表面积模型,我们分析了其对结实量的影响。结果显示,红松人工林结实量与其树冠体积大小以及与树冠表面积大小呈线性关系,其中,结实丰年的结实量与树冠体积以及与树冠表面的线性关系最明显(r=0.726 7-0.733 8),平年次之(r=0.688 8-0.667 5),欠年最差(r<0.5)。总的来说,本文所建立的红松人工林立木树冠体积和表面积单变量和多变量模型能对红松立木树冠大小进行很好的估计,为进一步研究红松人工林结实规律及果材兼用林优化经营提供基础。
译  名：
The Relationship between Crown Size and Pine Nut Yield for Korean Pine Plantation
作  者：
ZHANG Qiang;DONG Li-Hu;LI Feng-Ri;Northeast Forestry University;
关键词：
Korean pine plantation;;crown volume;;crown surface area;;pine nut yield
摘  要：
With the data of the branch analysis of 70 sample trees from 12 sample plots and stand pine nut yields( 2008- 2010) from 21 permanent sample plots for Korean pine( Pinus koraiensis) plantation in Mengjiagang Forest Farm,Jiamusi,Heilongjiang Province,we used allometric growth equation to develop the predicting models of crown volume( CV) and crown surface area( CA),and analyzed the correlation between pine nut yield of a bad harvest year,an average harvest year,a good harvest year and crown size. The correlations between crown volume and crown surface area with crown length,diameter at breast height,crown width and tree height were all significant,the maximum correlation coefficient was with diameter at breast height,and the minimum correlation coefficient was with tree height. The determination coefficients( R2) of the models were all above 0. 55,and most of the prediction accuracies were above 85%. We used the models for crown volume and crown surface area to analyze their influence on the pine nut yield,and the result indicated that the pine nut yield had the linear correlation with crown volume and crown surface area for Korean pine plantation,in which the relationship between pine nut yield in a good harvest year with crown volume and crown surface area was the most obvious( r = 0. 726 7- 0. 733 8),followed by in an average harvest year( r = 0. 688 8-0. 667 5),and the worst was in a bad harvest year( r < 0. 5). Generally,the models of crown volume and crown surface area with univariate and multivariate variables for Korean pine plantation standing tree are suitable for estimating the crown size of Korean pine,and providing further study of pine nut yield and sustainable management of Korean pine plantation.

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