摘要
为揭示湖南洞口县石松类和蕨类植物的区系特征,通过野外调查和文献查阅,对洞口县石松类和蕨类植物进行了统计分析,就其植物区系及特征进行了探讨。结果表明,洞口县石松类和蕨类植物共22科60属145种(含种下分类群)。该地区石松类和蕨类植物含热带和寒带性质成分,但属温带性质,复杂的地理成分体现其中。该地区石松类和蕨类植物有5个优势科、7个优势属,优势科与优势属的种数分别占所有种数的61.38%、38.62%,优势科属明显;单种属近50%,占总属数的46.67%,但种数却只占总种数的19.31%。中国特有种21种,说明富有特有现象,且较明显。生态类型有5类,以土生为主。垂直分布上,以800~1500 m分布较为丰富,达104种。建议就石松类和蕨类植物加强宣传教育,设立自然保护区,整体保护次生林,加强稀有蕨类的繁育保存等。
In order to reveal the floristic characteristics of stone pines and ferns in Dongkou county of Hunan Province,the field investigation and literature review were reviewed.The results show that there are 145 species of stone pines and ferns in 22 families in Dongkou county(including plant taxa).Stone pines and ferns in Dongkou county contain tropical and cold zone properties,but they are temperate properties,which means complex geographical components.There are 5 dominant families and 7 dominant genera,with 61.38%and 38.62%respectively,and the dominant families is nearly 50%,accounting for 46.67%of the total genera,but only 19.31%of the total species.There are 21 species endemic to,indicating that they are endemic and quite obvious.There are 5 types of ecological types,mainly native-born.Vertical distribution,with 800-1500 m is relatively rich,up to 104 species.It is suggested to strengthen the publicity and education of stone pines and ferns,set up nature reserves,protect the secondary forests as a whole,and strengthen the breeding and preservation of rare ferns.
作者
王臻
WANG Zhen(Yuexi State Forest Farm of Dongkou County,Dongkou 422326,China)
出处
《安徽农学通报》
2023年第22期88-94,共7页
Anhui Agricultural Science Bulletin
