桉树(Eucalytus)属桃金娘科,原产澳大利亚,我国大约在1890年从欧洲引进试种,最早种植在香港、广州、福州等地。解放后发展很快,1972年全国林木良种科技协作会议后,随即成立了南方九省(自治区)桉树科技协作组。70年代后期,在林业发展中,强调集约经营,大力营造速生丰产林,桉树作为速生树种,在华南地区广为种植。但桉树年增长量普遍在每公顷6-10立方米或更低,采用全垦 Eucalyptus is a Myrtaceae family, native to Australia. About 1890, our country was introduced with trial cultivation from Europe and was first planted in Hong Kong, Guangzhou and Fuzhou. After the liberation of rapid development, 1972 national forest seed science and technology collaboration meeting, then set up nine southern provinces (autonomous regions) Eucalyptus Science and Technology Collaboration. In the late 1970s, in the development of forestry, emphasis was put on intensive management to vigorously create fast-growing and high-yield forests, and eucalyptus was widely planted in southern China as a fast growing tree species. However, annual growth of eucalyptus is generally 6-10 cubic meters per hectare or less, using all Ken