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从巴西引进4种桉树(巨桉、托里桉、柳桉、尾叶桉)首次在海南岛试种成功,丰富了海南岛的树种资源,为海南桉树发展提供了科学依据。4种桉树中表现最好的是巨桉,其次是托里桉、柳桉、尾叶桉。巨桉在生长量、抗性等方面都优于我国大面积推广的雷林一号桉。5年生巨桉平均高17.08米,年增高3.40米;平均胸陉16.02厘米,年增粗3.20厘米。巨桉是速生桉树种,是造纸的优质原料。应重视巨桉的发展,做好优树选择和繁殖工作,加速建立巨桉造纸商品材基地。
The introduction of four kinds of eucalyptus (Eucalyptus grandis, E. thunbergii, E. grandis, E. urophylla) from Brazil for the first time succeeded in planting Hainan Island for the first time, which enriched the species resources of Hainan Island and provided a scientific basis for the development of Hainan Eucalyptus. Among the four kinds of eucalypts, the best performance was Eucalyptus grandis, followed by Eucalyptus grandis, Eucalyptus globulus and Eucalyptus urophylla. Eucalyptus in growth, resistance and other aspects are better than our large-scale promotion of the Eucalyptus Eucalyptus. 5-year-old giant eucalyptus average height of 17.08 meters, an increase of 3.40 meters; average Breast 16.02 cm, annual increase of 3.20 cm. Eucalyptus is a fast-growing eucalyptus species, is a high-quality papermaking raw materials. Should pay attention to the development of giant eucalyptus, do a good job in selecting and breeding elite trees, accelerating the establishment of giant eucalyptus paper products base.