龟类因被用于医药、饮食、宠物等方面 ,目前需求量增长 ,因各种养殖在规模上、技术上均不是很成熟 ,所以对野生种群的依赖依然很严重 ,近年来边境贸易的频繁已严重影响到其野生种群。几乎所有的龟种都不同程度地受到贸易的影响 ,许多著名的龟种已经面临灭绝 (Ｌａｕ ,Ｗ ,1 99 Due to the fact that turtles are used in medicine, diet, pets and so on, the present demand is growing. Because of the fact that all kinds of farming are not very mature in scale and technology, the dependence on wild populations is still very serious. In recent years, border trade has been frequent Has seriously affected its wild population. Almost all species of turtles are affected to varying degrees by trade and many well-known species of turtles are already extinct (Lau, W, 1999