大花序桉和卷荚相思生长发育规律及主要材性比较  

Comparison of growth and development regularity and main wood properties of Eucalyptus cloeziana and Acacia cincinnata

作　　者：陈书兴 CHEN Shuxing(Zhangzhou Longhai district forestry technical guidance station,Zhangzhou 363000,Fujian,China)

机构地区：[1]福建省漳州市龙海区林业技术指导站,福建漳州363000

出　　处：《福建林业》2024年第5期41-44,共4页Fujian Forestry

摘　　要：以12年生大花序桉和15年生卷荚相思人工林为研究对象,对其生长发育规律、木材物理力学性质进行调查测定与比较分析。结果表明:大花序桉的年平均树高、胸径、单株材积、立木蓄积量分别是卷荚相思的2.06倍、1.08倍、2.16倍、1.33倍;两个树种的树高和胸径均属于早期生长型,在4年生时达最大年平均生长量;两者树高和胸径的连年生长量,均分别在4年生和2年生时达到最大,之后随年龄增加产生较大波动;两个树种均尚未达到材积的数量成熟时期,相比之下,大花序桉有更明显的生长优势;大花序桉的木材密度、顺纹抗压强度、抗弯强度、端面硬度的级别均为Ⅳ级,卷荚相思的木材密度、顺纹抗压强度、抗弯强度、端面硬度的级别分别为Ⅲ级、Ⅲ级、Ⅳ级、Ⅳ级,两个树种的木材物理力学性质优良,木材综合强度属中上,是优良的实木用材。In order to provide theoretical basis for efficient cultivation and wood processing and utilization,the growth and development rules of 12-year-old Eucalyptus cloeziana and 15-year-old Acacia cincinnata plantations were investigated and compared.The results showed that the average annual tree height,average annual DBH,average annual tree volume and annual tree stock of E.cloeziana were 2.06 times,1.08 times,2.16 times and 1.33 times of A.cincinnata,respectively.The height and DBH of the two species belong to the early growth type,and basically reach the maximum annual average growth at 4 years of life.The annual growth of tree height and DBH reached the maximum at 4 years and 2 years,respectively,and then fluctuated greatly with increasing age.The two tree species have not reached the maturity stage of the number of volumes,and E.cloeziana has more obvious growth advantages.The wood density,compressive strength along grain,bending strength and end hardness of E.cloeziana were grade IV.The grades of wood density,compressive strength,bending strength and end hardness of A.cincinnata areⅢ,Ⅲ,ⅣandⅣrespectively.The physical and mechanical properties of both wood are excellent,and the comprehensive strength of wood is medium and upper,which is an excellent solid wood.

关 键 词：大花序桉 卷荚相思 生长发育规律 木材性质 

分 类 号：S792[农业科学—林木遗传育种]