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桉树(Eucalyptus),绝大多数种和变种均自然分布于澳大利亚及其附近岛屿。但由于它广泛的适应性和生长快、用途广、效益高的经济性,发展很快。现已引种到90多个国家,至少发展到600万公顷,遍及五大洲。一、自然条件概况湖南位于长江中游南岸,介于北纬24°38′—30°08′,东经108°47′—114°15′,处于云贵高原及南岭山地与江汉平原之间的过渡地带,西部雪峰、武陵山脉环绕,东部幕阜山、连云山、武功山等绵亘,南部为五岭山脉盘踞,中部丘岗起伏,北部洞庭湖平原。这种东、南、西三面环山,朝北东敞口的马蹄形地貌特征,是形成自然条件的复杂性,自然资源的多样性
Eucalyptus, the vast majority of species and varieties are naturally distributed in Australia and its nearby islands. However, due to its wide adaptability and rapid growth, its wide range of uses and its high efficiency and economy have developed rapidly. Has now been introduced to more than 90 countries, at least to 6 million hectares, spread across five continents. I. Overview of Natural Conditions Hunan is located on the south bank of the middle reaches of the Yangtze River, between the latitudes 24 ° 38’-30 ° 08’N and 108 ° 47’-114 ° 15’E, and lies in the transition zone between the Yunnan-Guizhou Plateau and the Nanling Mountains and the Jianghan Plain , The western Xuefeng, surrounded by Wuling mountains, the eastern Mu Fu Shan, Lianyunshan, Wugongshan and other stretches, the southern Wuling mountains entrenched in the central ups and downs ups and downs, the northern part of Dongting Lake Plain. This east, south, west surrounded by mountains, north-east exposure of horseshoe-shaped features, is the formation of the complexity of natural conditions, the diversity of natural resources