一、目的与作用桉树生长迅速,轮伐期短,主副产品用途广泛,是我国南方主要速生造林树种之一。在全世界人工造林中占有重要的位置,造林面积约占总面积的五分之一。桉属树种为异花授粉植物,种间天然杂交产生杂种的现象较为常见。雷州地区推广 First, the purpose and role Eucalyptus rapid growth, short rotation, the main purpose of a wide range of uses, is one of the main fast-growing afforestation species in southern China. In the world afforestation occupies an important position afforestation area accounts for about one-fifth of the total area. Eucalyptus species is cross-pollination plants, natural hybrids between species to produce hybrid phenomenon is more common. Leizhou area promotion