Growth and Biomass of Six-year-old Eucalyptus urophylla Plantation in Leizhou Forestry Bureau
Growth and Biomass of Six-year-old Eucalyptus urophylla Plantation in Leizhou Forestry Bureau
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发表时间：
2009
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通讯作者：
Xue Peng
中科院分区：
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作者：
Xue Peng
桉树是重要的速生纤维乔木，在林业发展中起着重要作用。对雷州林业局6年生尾叶柏人工林的生长和生物量进行了研究。结果表明：随着树龄的增加，树高和树径均呈增加趋势，但树高的增长趋势变缓，树径变化差异不大；用最小二乘法对尾叶桉生物量进行分组估算是可行的，效果较好。随着年龄的增长，生物量明显增加，枯叶生物量在初始阶段增长较快。茎材和树皮的生物量在3年后迅速积累。在6年生人工林中，其茎材生物量占总生物量的一半以上，地上生物量占58%以上。这些结果可作为尾叶草短周期纤维栽培的重要技术指导。
Eucalyptus is an important fast-growing tree for fiber and played vital role in forestry development.The study was conducted on the growth and biomass of six-year-old E.urophylla plantation in Leizhou Forestry Bureau.The results indicated that the tree height and diameter increased with the increasing of tree ages,but the increasing tendency of height became slowly,diameter variation had no big difference.It was feasible to use the study results with good effects by the least square method to estimate the biomass of Eucalyptus urophylla by groups.Biomass obviously increased with the age becoming old and leave biomass increased quickly in the initial stage.The biomass of stem-wood and bark accumulated speedly after three years.In six years old plantations,its biomass of stem-wood was more than half of total biomass,and over 58% of the above-ground biomass.All these results would be taken as an important technical guidance for the cultivation of short-period fiber of E.urophylla.