摘要
对岩溶地区翅荚木(Zenia insignis)、柚木(Tectona grandis)、海南蒲桃(Syzygium hainanense)、秋枫(Bischofia javanica),顶果木(Acrocarpus fraxinifolius)等5种用材树种的9年生试验林调查分析,结果表明:各树种之间的树高、胸径、材积、冠幅差异极显著。其中翅荚木平均树高、胸径和单株材积最大,分别为11.88 m、12.74 cm、0.090 66 m^3;其次是柚木,分别为11.21m、10.52 cm,0.056 29 m^3;初步认为翅荚木和柚木早期速生,可作为用材树种在广西岩溶地区推广造林,快速恢复森林植被,增加森林面积和森林蓄积量。在5种用材树种中,翅荚木、柚木冠幅较大,其次是海南蒲桃、秋枫,顶果木冠幅较小。
9-year-old plantations of Zenia insignis, Tectona grandis, Syzygium hainanense, Bischofia javanica, Acrocarpus fraxinifolius five commercial tree species have been investigated in karst area. The results showed that there were significant differences in tree height, DBH, volume, crown width among plantations. The average height,DBH and volume of individual tree were the largest in Z. insignis plantation with 11.88 m,12.74 cm and 0.090 66 m^3,respectively,and the second largest was T. grandis plantation with 11.21 m,10.52 cm,0.056 29 m^3,respectively. A preliminary conclusion can be drawn that Z. insignis and T. grandis grew rapidly in the early stage,and the forestation of these species can be extended to large areas of karst areas in Guangxi to recover forest vegetation quickly and increase forestry areas and forest stocks. As for crown width,Z. insignis,T. grandis had wider crown width,followed by S. hainanense and B. javanica,and A.fraxinifolius had smaller crown width.
出处
《广西林业科学》
2017年第3期299-302,共4页
Guangxi Forestry Science
基金
广西科学研究与技术开发计划项目(桂科攻14124004-3-11)
广西林业科技项目(桂林科字[2014]02号)
关键词
用材树种
岩溶地区
生长
commercial tree species
karst area
growth
