4种泡桐木材材色的差异性  

Wood Color Differences from Four Paulownia Species

作　　者：常德龙[1] 黄文豪[1] 张云岭[1] 胡伟华[1] 关倩[1] 韩黎雪[1] 

机构地区：[1]国家林业局泡桐研究开发中心,郑州450003

出　　处：《东北林业大学学报》2013年第8期102-104,112,共4页Journal of Northeast Forestry University

基　　金：林业公益性行业科研专项(201204705)

摘　　要：为评价不同种类泡桐木材的色泽质量,研究了兰考泡桐、楸叶泡桐、白花泡桐和毛泡桐的亮度、变红度、变黄度、总色差和白度等指标。结果表明:4种泡桐的5项指标均差异显著,其中最直接反映木材色度的亮度和白度均为白花泡桐>楸叶泡桐>兰考泡桐≥毛泡桐,反映木材色度综合变化的总色差指标则为兰考泡桐≥毛泡桐>以楸叶泡桐>白花泡桐,反映木材色度的变红度为兰考泡桐>白花泡桐>楸叶泡桐>毛泡桐,变黄度为楸叶泡桐>白花泡桐>兰考泡桐>毛泡桐。综合确定,4种泡桐的材色以白花泡桐最优,楸叶泡桐次之,再次为兰考泡桐和毛泡桐,其亮度与白度比楸叶泡桐高4%～5%,比兰考泡桐和毛泡桐高8%～9%。变红度白花泡桐与楸叶泡桐的变动误差小,分别为1.76和1.91,毛泡桐与兰考泡桐分别为2.28和2.12;白花泡桐变黄度适中,比楸叶泡桐低3%,比兰考泡桐和毛泡桐分别高2%和14%;白花泡桐总色差最小,比楸叶泡桐低10%,比兰考泡桐和毛泡桐均低18%。An experiment was conducted to study five parameters of brightness, red degree, yellow degree, general chromatism and whiteness of wood color to evaluate color quality of different Paulownia species of P. elongate, P. catalpifolia, P. for- tuwei and P. tomentosa. The color differences of four Paulownia species are with significance level. Among five parame- ters, the brightness and whiteness are the direct wood color factors, and the order in four species is P. fonunei〉P, catalpi- folia〉P, elongate^P, tomentosa. The general chromatism can reflect the changes of wood color, and the order in four species is P. elongate≥P, tomentosa〉P, catalpifolia〉P, fortunei. The red degree order is P. elongate〉P, fortunei〉P. catalpifolia〉 P. tomentosa. The yellow degree order is P. catalpifolia 〉 P. fortunei 〉 P. elongate 〉 P. tomentosa. The best wood color parameters of four Paulownia species belong to P. fortunei by comprehensive study. The brightness and white- ness of P. fortunei are 4% -5% higher than those of P. catalpifolia, and 8% -9% higher than those of P. elongate and P. tomentosa. Red degree variation of P. fortunei and P. catalpifolia are 1.76 and 1.91, respectively, and that of P. to- mentosa and P. elongate are 2.28 and 2.12, respectively. The yellow degree of P. fortunei is moderate, 3% lower than that of P. catalpifolia, 2% and 14% higher than that of P. elongate and P. tomentosa, respectively. The general chroma- tism of P. fortunei is the lowest, 10% lower than that of P. catalpifolia, and 18% lower than that of P. elongate and P. tomentosa.

关 键 词：泡桐 木材 颜色 变色 色差 

分 类 号：S715.3[农业科学—林学]