海南滨海盐生植物资源与多样性  

The resources and diversity of halophytes in the coastal area of Hainan Island

作　　者：方发之 吴二焕 桂慧颖 FANG Fazhi;WU Erhuan;GUI Huiying(Hainan Academy of Forestry,Haikou 571100,Hainan,China)

机构地区：[1]海南省林业科学研究院,海口571100

出　　处：《热带生物学报》2023年第4期347-356,共10页Journal of Tropical Biology

基　　金：海南省重大科技计划项目(ZDKJ202008)。

摘　　要：为探索海南岛滨海盐生植物资源状况及多样性,通过样地调查方法对海南岛滨海地区分布的盐生植物进行调查,并对滨海盐生植物资源种类与多样性进行统计和分析。结果表明:滨海盐生植物共125种,隶属50科92属,其中被子植物49科91属123种,蕨类植物1科1属2种。海南盐生植物大科较少,单种科较多,含2~9种盐生植物的科最多;单种属最多,占总种数的78.26%。乔木14科17属23种,灌木及小乔木20科29属32种,草本22科46属63种,藤本4科7属7种。科级、属级地理分布区类型分别是6型、11型,热带地理成分占绝对优势。海南泌盐植物种类最多,共63个种。文昌市物种相对丰富,多样性指数高,分布不均匀;各市县草本植物种类多,海南盐生植物资源用途多样。To explore the resources and diversity of halophytes in the coastal area of Hainan Island,a general survey of the distribution of halophytes was conducted by using plot sampling,and the species and diversity of the halophytes were analyzed.The results showed that a total of 125 species halophytes belonging to 92 genera and 50 families were recorded,including 123 species in 91 genera and 49 families of angiosperms,and 2 species in 1 genus and 1 family of pteridophytes.There were fewer families with multiple species,more families with single species,and most families with 2−9 species accounting for 52%of the total number of families.The number of genera with single species was the largest,accounting for 78.26%of the total species.In terms of life form,the halophytes in Hainan Island included 23 species in 17 genera and 14 families of trees,32 species in 29 genera and 20 families of shrubs and small trees,63 species in 46 genera and 22 families of herbs,and 7 species in 7 genera and 4 families of vines.The halophytes are divided into 6 and 11 areal types of species and genera,respectively,with their tropical distribution being dominant.The salt-secreting plants were richest in the halophytes with 63 species according to the salt regulation system of halophyte types.Wenchang city was relatively rich in species,with a high diversity index but uneven distribution.There were many species of herbs in cities and counties.The halophytes have various uses in Hainan Island.It is concluded that the halophytes in the coastal area of Hainan Island are rich in species and high in diversity.

关 键 词：盐生植物 多样性 滨海地区 海南 

分 类 号：Q949.9[生物学—植物学]