摘要
根据2021—2023年的野外调查和资料整理,对广西滨海植物的区系组成、区系地理成分、生长型和特有性进行统计分析;采用浪花飞溅区植物的概念,提出滨海植物划分的新方法。结果表明:(1)广西滨海植物共有1038种,隶属于159科637属,其中蕨类植物12科22属33种,裸子植物7科8属13种,被子植物140科607属992种;野生植物133科505属803种,栽培植物83科177属235种。生活型以草本种类最多,有437种,占比达42.10%;而藤本植物最少,只有133种,占12.81%。(2)外来入侵种共有66种,占广西野生滨海植物种数8.22%,其中属于国家重点管理的外来入侵种14种。(3)广西滨海植物区系具有明显的热带-亚热带性质,温带地理成分比例小,表现出热带北缘区系的特点;与广东省的关系最近,两地共有种占广西野生滨海植物种数的91.41%;广西滨海植物缺乏特有种,仅有1种,即谢氏膝柄木(Bhesa xiei)。(4)重点保护种类较多,有国家一级重点保护野生植物2种,国家二级重点保护野生植物5种,广西重点保护野生植物2种。
The floristic composition,geographical components,life form and endemic species about coastal plants in Guangxi were statistical analyzed by field investigation and data collation in 2021—2023.This paper adopted the concept of spray zone plant and proposed a new method for dividing coastal plants.The results show that:①there were totally 1038 species of coastal plants in Guangxi,belonging to 637 genera and 159 families,among which were 33 species of ferns belong to 22 genera,12 families;13 species of gymnosperms belong to 8 genera,7 families;and 992 species of angiosperm belong to 607 genera,140 families.Wild plants were 803 species from 505 genera,133 families,and cultivated plants were 235 species from 177 genera,83 families.Most of the species were herbs,the number of which was 437,accounting for 42.75%;Least of the species were lianas,with only 133 species,accounting for 12.81%.②The number of invasive species were 66,accounted for 8.22%of wild coastal plants,including 14 species of alien invasive species under national key management.③The coastal plants of Guangxi basically consist of tropical to subtropical elements,with fewer temperate plants,showing the characteristics of tropical north-fringe.④The coastal flora of Guangxi was closely related to that of Guangdong Province,and their common species account for 91.41%of wild coastal plant species in Guangxi.Among the coastal plants in Guangxi,there were a lack of endemic species,only one species,that was Bhesa xiei.⑤Among the coastal plants,there were many kinds of key protected plants,including 2 first-level national key protected wild plants,5 second-level national key protected wild plants,and 6 key protected wild plants of Guangxi.
作者
林建勇
姜冬冬
潘良浩
LIN Jianyong;JIANG Dongdong;PAN Lianghao(Key Laboratory of Central South Fast-growing Timber Cultivation of Forestry Ministry of China,Guangxi Forestry Research Institute,Nanning 530002,Guangxi,China;Guangxi Key Lab of Mangrove Conservation and Utilization,Guangxi Mangrove Research Center,Guangxi Academy of Marine Sciences,Beihai 536000,Guangxi,China)
出处
《福建林业科技》
2024年第2期130-137,共8页
Journal of Fujian Forestry Science and Technology
基金
广西自然科学基金(2021GXNSFAA220025)
广西林业科技项目(广西林草种质资源普查与收集,桂林科字[2021]第34号)。
