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时间:2020-04-10
《_4种泡桐木材材色的差异性.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第41卷第8期东北林业大学学报Vol.41No.82013年8月JOURNALOFNORTHEASTFORESTRYUNIVERSITYAug.20131)4种泡桐木材材色的差异性常德龙黄文豪张云岭胡伟华关倩韩黎雪(国家林业局泡桐研究开发中心,郑州,450003)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
2、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
3、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%。关键词泡桐;木材;颜色;变色;色差分类号S715.3WoodColorDifferencesfromFourPaulowniaSpecies/ChangDelong,HuangWenhao,ZhangYunling,HuWeihua,GuanQian,HanLixue(ChinaPaulowniaResearchCenter,Zhengzhou450003,P.R.China)//JournalofNorthea
4、stFor-estryUniversity.-2013,41(8).-102~104,112Anexperimentwasconductedtostudyfiveparametersofbrightness,reddegree,yellowdegree,generalchromatismandwhitenessofwoodcolortoevaluatecolorqualityofdifferentPaulowniaspeciesofP.elongate,P.catalpifolia,P.for-
5、tuneiandP.tomentosa.ThecolordifferencesoffourPaulowniaspeciesarewithsignificancelevel.Amongfiveparame-ters,thebrightnessandwhitenessarethedirectwoodcolorfactors,andtheorderinfourspeciesisP.fortunei>P.catalpi-folia>P.elongate≥P.tomentosa.Thegeneralchr
6、omatismcanreflectthechangesofwoodcolor,andtheorderinfourspeciesisP.elongate≥P.tomentosa>P.catalpifolia>P.fortunei.ThereddegreeorderisP.elongate>P.fortunei>P.catalpifolia>P.tomentosa.TheyellowdegreeorderisP.catalpifolia>P.fortunei>P.elongate>P.tomento
7、sa.ThebestwoodcolorparametersoffourPaulowniaspeciesbelongtoP.fortuneibycomprehensivestudy.Thebrightnessandwhite-nessofP.fortuneiare4%-5%higherthanthoseofP.catalpifolia,and8%-9%higherthanthoseofP.elongateandP.tomentosa.ReddegreevariationofP.fortuneian
8、dP.catalpifoliaare1.76and1.91,respectively,andthatofP.to-mentosaandP.elongateare2.28and2.12,respectively.TheyellowdegreeofP.fortuneiismoderate,3%lowerthanthatofP.catalpifolia,2%and14%higherthanthatofP.elongateandP.tomentosa,respectively.Thegeneralchr
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