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我国热带、南亚热带地区气候优越,热量丰富,生长期长,雨量充沛,土壤肥沃,地形复杂。这种得天独厚的自然条件,蕴藏着许许多多优良、速生、珍贵和特产树种,及丰富多彩的林副产品与药源植物。如素以“植物王国”著称的云南西双版纳原始密林,久享“绿色宝库”盛誉的海南岛热带雨林等。在我国林业中占有重要地位。这些地区的原始森林树种繁多,林型复杂,地植物及攀援植物繁茂,如海南岛和西双版纳一公顷面积,往往仅乔灌木就有上百种。据资料统计,仅大小乔木就有千余种,而为人们所熟知,且材质优良、经济价值较高并有一定栽培经验的就有三百余种。主要以壳斗科,樟
China’s tropical and subtropical regions have favorable climate, abundant heat, long growing season, abundant rainfall, fertile soil and complex terrain. This unique natural conditions, contains many excellent, fast-growing, precious and specialty tree species, and colorful forest by-products and medicinal plants. Such as the famous “plant kingdom” famous Yunnan Xishuangbanna primitive jungle, long enjoyed the “green treasure” reputation of Hainan Island tropical rainforest and so on. In our country forestry occupies an important position. The primitive forests in these areas have many species, complex forests, lush flora and climbers, such as the one hectare area of Hainan Island and Xishuangbanna, and there are often only hundreds of trees and shrubs. According to statistics, there are more than a thousand kinds of trees of only the size, which are well-known and have more than 300 species of fine materials, high economic value and certain cultivation experience. Mainly Fagaceae, camphor