广州从化市风水林植物群落种子植物区系特征分析

通过对广州从化市的471个村庄周围的风水林进行调查和标本采集,共收集了2 530份植物标本,存于华南农业大学植物标本馆(CANT)和中国科学院华南植物园标本馆(IBSC)。整理出从化市风水林植物名录,在此基础上对从化市风水林植物群落内的科、属植物区系进行了详细分析。结果显示:从化市风水林种子植物116科2,99属531种;其中,裸子植物3科3属5种;被子植物113科2,96属526种。风水林植物区系成分较复杂,泛热带区系成分占绝对优势,温带成分比例较少,与广州市种子植物区系特征极为相似,说明从化市风水林的地带性植被代表性较强,保存较好,可作为乡村自然保护小区的重点保护对象,优先保护。

Analysis on Characteristics of Spermatophyte Flora of Geomantic Forest in Conghua of Guangzhou

Though investigating geomantic forest around 471 villages of Conghua,Guangzhou and collecting the samples,2 530 herbariums were collected and identified from the geomantic forest of Conghua,Guangzhou City,and these species were stored in the Herbarium of South China Agriculture University and the Herbarium of South China Botanical Garden,Chinese Academy of Sciences.Based on this,the families and genera of spermatophyte flora were analyzed in detail with the data from the list of seed plants.The results showed that there were 531 vascular plant species,belonging to 299 genera,116 families in these geomantic forests,the number of gymnosperms were five species belonging to three genera,three families;angiosperms were 526 species,296 genera,113 families.The floristic geological components of the geomantic forest,compound and much familiar with the Guangzhou’s flora,showed strong tropical and subtropical features,only small proportion of temperate elements.These results illustrated that the geomantic forest of Conghua were well preserved and typical for the south subtropical evergreen broad-leaved forest,they should given the precedence to protect as the small natural reserves.