福建植物生物多样性的特点及其生物安全问题

对福建植物生物多样性从物种多样性、遗传多样性和生态系统多样性三个层面进行了评价，分析了植物生物多样性的特点。在此基础上提出了影响福建植物生物多样性的主要生物安全问题。研究表明，福建植物生物多样性具有植物种类丰富，热带和亚热带的科属种类多、起源古老，中国特有成分比例较高和国家重点保护植物较为丰富等特点。影响植物生物多样性的主要生物安全问题包括阔叶林面积不断减少，森林资源总体质量下降；濒危野生植物比重增大，名木古树破坏严重；外来物种入侵呈加重趋势。

Characteristics and the issues of bio-safety for the plant biodiversity in Fujian

Plant biodiversity was assessed for Fujian Province from three aspects:species diversity,genetic diversity, and ecosystem diversity.The primary bio-safety influencing factors were suggested for plant biodiversity in Fujian Province.The plant biodiversity in Fujian was abundant.Many species were from tropical and sub-topical families and genus,with ancient origionation.There were also many native Chinese species which are on the list of nationally protected important species.The main problems influencing bio-safety included the continuous shrink of broad-leaved forest,the decrease of general quality of forest resources,the increase of the proportion of endangered wild plants, the heavily destroyed ancient trees, and deteriorated exotic species invation.