赤松木材材质早期预测  

Early Prediction of Wood Quality for Pinus densiflora

作　　者：金春德[1] 吴义强[2] 张美淑[3] 张鹏[3] 

机构地区：[1]浙江林学院,浙江临安311300 [2]中南林学院 [3]延边大学农学院

出　　处：《东北林业大学学报》2005年第2期24-26,共3页Journal of Northeast Forestry University

基　　金：国家自然科学基金资助项目(30060070)。

摘　　要：根据人工林赤松的管胞长度、微纤丝角、管胞长宽比、基本密度、晚材率及生长轮宽度等材性指标的测试数据,采用有序聚类分割法划分出赤松的幼龄期为12a;根据幼龄材的构造特征和材性指标,运用回归分析方法,推导出成熟材的理论预测值,经误差分析,该值与实测值比较接近,平均相对误差最小为5. 2%,最大为25. 7%。Based on the variation pattern of wood properties obtained from the analysis res ults of measurement of tracheid length, microfibril angle, ratio of tracheid len gth to width, basic density and late wood percentage, the demarcation of juvenil e wood and mature wood of Pinus densiflora was determined at the age of 12 y ears old with the analyses of optimum method of classification. According to the characteristics of structure and the indexes of wood quality of juvenile wood, the theoretical predicted data of mature wood were deduced by the method of regr ession analysis, which was very approximate to actual test data by relative erro r analysis, and the least average relative error was 5.2%, the maximum was 25.7% .

关 键 词：赤松 幼龄材 成熟材 木材材质 早期预测 人工林 

分 类 号：S781[农业科学—木材科学与技术]