摘要
采用样线调查法,在阳江市野生植物资源集中区域开展野生维管植物调查,并分析其植物种类组成与区系特征。结果表明:(1)阳江市有野生维管植物212科1059属2478种,被子植物数量最为丰富。(2)野生植物的科组成以寡种科和单种科占优势,属组成以小属和单种属占绝对优势,说明科、属的分化程度较高。(3)从科的区系成分看,以世界广布、泛热带分布为主。在属级水平上,以热带亚热带成分为主;具有热带向亚热带过渡性质,同时温带成分也占有一定优势。(4)植物区系特有现象突出。(5)阳江市含有东亚特有科19个,中国特有属18属20种,广东特有植物19种。总体而言,阳江市野生维管植物种类丰富,具有典型的南亚热带植物区系特点。
The method of transect survey was used to investigate the wild vascular plants in the wild plant resource concentration area of Yangjiang City.The species composition and flora characteristics were analyzed.The results showed that i)there were 2478 species of wild vascular plants belonging to 1059 genera and 212 families in Yangjiang City,and flowering plants were mostly abundant;ii)the family composition of wild plants is dominated by a few families and a single family,and the genus composition is dominated by a small genus and a single species genus in absolute advantage,indicating that significant differentiation of families and genera;iii)from the perspective of the floristic composition of the family,it is mainly distributed worldwide and in the pan tropical region.At the genus level,it is mainly composed of tropical and subtropical components,with a transitional nature from tropical to subtropical,while temperate components also have certain advantages;iv)the unique phenomenon of flora is prominent.Yangjiang City contains 19 families of East Asian endemic families,18 genera and 20 species of Chinese endemic genera,and 19 species of Guangdong endemic plants.In general,Yangjiang City is rich in wild vascular plants,with typical characteristics of the subtropical flora.
作者
陈瑞炳
许永梯
杨诗敏
CHENG Rui-bing;XU Yong-ti;YANG Shi-min(Yangjiang Wildlife Protection Station,Yangjiang,Guangdong 529500;Guangdong Lijing Agriculture and Forestry Technology Co.,Ltd,Yangjiang,Guangdong 529500;Guangzhou Linfang Ecology Co.,Ltd.,Guangzhou,Guangdong 510520)
出处
《陕西林业科技》
2024年第1期56-61,共6页
Shaanxi Forest Science and Technology
