广东东莞银瓶山自然保护区乡土木本植物资源及其引种潜力分析

运用样地调查法对广东东莞银瓶山自然保护区乡土木本植物进行调查研究。结果表明：（1）银瓶山自然保护区乡土木本植物种类丰富，2 hm2样地共有乡土木本植物45科83属111种，优势科为樟科、山茶科、大戟科、茜草科、鼠李科和芸香科；（2）银瓶山乡土木本植物属的分布类型共10种，个体数量最多的前6个种类分属于泛热带分布、热带亚洲和热带美洲间断分布、热带亚洲（印度-马来西亚）分布，以及东亚和北美洲间断分布区类型；（3）根据样地内木本植物种类出现频度高低及重要值大小，结合属的分布类型，认为木荷、九节、银柴、豺皮樟、鸭脚木、鼠刺和华润楠是具有推广引种潜力的乡土木本植物。

Indigenous Woody Plant Resources and Their Introduction Potential in Yinpingshan Nature Reserve of Dongguan,Guangdong

Sample-plot survey method was used to study the indigenous woody plants of Yinpingshan Nature Reserve from Dongguan of Guangdong, China. The results showed that： 1） there were 111 species belonging to 83 genera, 45 families in the 2 hm2 sample plot, which indicated there was richer indigenous woody plant species in the Nature Reserve. Among the species, Lauraceae, Theaceae, Euphorbiaceae, Rubiaceae, Rhamnaceae and Rutaceae were the dominant families. 2） The indigenous woody plants belonged to 10 areal-type of seed plant genera in Yingpingshan Nature Reserve. The mainly areal-types were pantropical, Trop. Asia＆Trop. Amer. Disjuncted, Trop. Asia （Indo-Malesia）, and Asia＆Amer. Disjuncted. 3） According the species richness and importance value, and combined with the areal-type of seed plant genera, the introduction potential species were the dominant species, i.e. Schima superba, Psychotria rubra, Aporosa dioica, Litsea rotundifolia var. oblon, Schefflera octophylla, Itea chinensis, and Machilus chinensis.