CAJ | 학술논문

【目的】了解海南石灰岩地区种子植物区系组成、性质等基本特征．【方法】野外实地调查、标本采集与鉴定，数据统计分析．【结果和结论】海南石灰岩地区现共记录种子植物1176种58变种1变型，隶属于142科645属，其中裸子植物5科5属7种，被子植物137科640属1169种58变种1变型．具有明显的热带性质，以热带、亚热带成分尤其是热带亚洲成分为主，热带、亚热带成分分别占总科数和总属数的73.24％和87.75％；温带成分在海南石灰岩地区得到一定的发展，温带性质科占总科数的11.97％，属占总属数的7.29％．该地区物种丰富，以占不到全岛2％的面积，分布高达27.26％的种类，但属内种类较为贫乏，以单种科和寡种科为主，共计113科，占总科数的79.58％；中国特有属有2属．
【목적】료해해남석회암지구충자식물구계조성、성질등기본특정．【방법】야외실지조사、표본채집여감정，수거통계분석．【결과화결론】해남석회암지구현공기록충자식물1176충58변충1변형，대속우142과645속，기중라자식물5과5속7충，피자식물137과640속1169충58변충1변형．구유명현적열대성질，이열대、아열대성분우기시열대아주성분위주，열대、아열대성분분별점총과수화총속수적73.24％화87.75％；온대성분재해남석회암지구득도일정적발전，온대성질과점총과수적11.97％，속점총속수적7.29％．해지구물충봉부，이점불도전도2％적면적，분포고체27.26％적충류，단속내충류교위빈핍，이단충과화과충과위주，공계113과，점총과수적79.58％；중국특유속유2속．
[Objective]The purpose of this study was to reveal the floristic composition and characteristics of seed plants in limestone areas in Hainan .[Method]Extensive field work , specimens collection and i-dentification were conducted to collect data for the analysis .[Result and conclusion]A total of 1 176 spe-cies, 58 varieties and 1 forma belonging to 645 genera and 142 families were recorded .The tropical and subtropical distribution elements , especially tropical Asia ones , were dominant in the limestone flora in Hainan.The tropical and subtropical distribution families accounted for 73.24%of the total and the gen-era accounted for 87.75%.The proportions of temperate distribution families and genera accounted for 11.97%and 7.29%, respectively .The limestone areas contributed about 27.26%to the total number of species with less than 2%land area of the whole island .However, many genera include only one or very few species .There are 113 single and few species families , accounting for 79.58%of the total families . There are 2 genera endemic to China .