一、经济价值兰桉原产澳洲,引种我国已有60年之久,解放后,我省中部地区及四川西部地区进行大量栽培,成为这些地区生长最快的树种之一。兰桉木材坚韧致密,比重0.65-0.75,天然耐腐力很强,各种力学抗强和弹性系数均较松类为高,是枕木、矿柱、桥梁、造船、桩柱、建筑等优良用材。 First, the economic value of Eucalyptus native to Australia, introduced to China for 60 years, after the liberation, the central region of our province and western Sichuan large-scale cultivation, as one of the fastest growing species in these areas. Eucalyptus wood tough and dense, the proportion of 0.65-0.75, natural corrosion resistance is very strong, a variety of mechanical resistance and elasticity are higher than the loose pine, is sleepers, pillars, bridges, shipbuilding, piles, construction and other excellent timber .