贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2014年
12期
48-52
,共5页
八角莲%群落结构%物种多样性%福建%三明
八角蓮%群落結構%物種多樣性%福建%三明
팔각련%군락결구%물충다양성%복건%삼명
Dysosma versipellis%community structure%species diversity%Sanming%Fujian
为人工仿生态栽培八角莲，采用样方调查法对福建省三明地区八角莲群落的植物组成、群落结构和物种多样性进行了分析。结果表明：在20个样方共计2000 m2的调查面积内，群落有维管植物99科197属285种，其中蕨类15科22属30种，裸子植物2科2属2种，被子植物82科173属253种。群落植物区系地理成分中亚热带性质明显，种子植物属的区系成分可为12个分布型和8个变型。其中，热带性分布属占59．62％，温带性成分占38．46％。生活型谱分析表明，高位芽植物占总种数的54．36％，以小高位芽占优势；高位芽以外的植物以地下芽占较大比例，达17．72％。群落垂直结构分为乔木层、灌木层、草本层，草本层以蕨类植物和多年生草本植物为主。群落垂直结构的 Simpson 指数和 Shannon-Wiener 指数值大小依次为草本层＞灌木层＞层外层＞乔木层，其中，草本层和灌木层的各项多样性指数均显著大于乔木层和层外层。
為人工倣生態栽培八角蓮，採用樣方調查法對福建省三明地區八角蓮群落的植物組成、群落結構和物種多樣性進行瞭分析。結果錶明：在20箇樣方共計2000 m2的調查麵積內，群落有維管植物99科197屬285種，其中蕨類15科22屬30種，裸子植物2科2屬2種，被子植物82科173屬253種。群落植物區繫地理成分中亞熱帶性質明顯，種子植物屬的區繫成分可為12箇分佈型和8箇變型。其中，熱帶性分佈屬佔59．62％，溫帶性成分佔38．46％。生活型譜分析錶明，高位芽植物佔總種數的54．36％，以小高位芽佔優勢；高位芽以外的植物以地下芽佔較大比例，達17．72％。群落垂直結構分為喬木層、灌木層、草本層，草本層以蕨類植物和多年生草本植物為主。群落垂直結構的 Simpson 指數和 Shannon-Wiener 指數值大小依次為草本層＞灌木層＞層外層＞喬木層，其中，草本層和灌木層的各項多樣性指數均顯著大于喬木層和層外層。
위인공방생태재배팔각련，채용양방조사법대복건성삼명지구팔각련군락적식물조성、군락결구화물충다양성진행료분석。결과표명：재20개양방공계2000 m2적조사면적내，군락유유관식물99과197속285충，기중궐류15과22속30충，라자식물2과2속2충，피자식물82과173속253충。군락식물구계지리성분중아열대성질명현，충자식물속적구계성분가위12개분포형화8개변형。기중，열대성분포속점59．62％，온대성성분점38．46％。생활형보분석표명，고위아식물점총충수적54．36％，이소고위아점우세；고위아이외적식물이지하아점교대비례，체17．72％。군락수직결구분위교목층、관목층、초본층，초본층이궐류식물화다년생초본식물위주。군락수직결구적 Simpson 지수화 Shannon-Wiener 지수치대소의차위초본층＞관목층＞층외층＞교목층，기중，초본층화관목층적각항다양성지수균현저대우교목층화층외층。
The plant composition, community structure and species diversity of D .versipellis community in Sanming area,Fujian were analyzed by the plot survey method to provide a reference for artificial cultivation of D.versipellis.There are 285 vascular species,197 genera,99 families;30 ferns species,22 genera,15 families;2 gymnosperm species,2 genera,2 families and 253 angiosperm species, 173 genera,82 families in 20 sample plots with 2000 m2 .The geographical composition of the community flora belongs to the obvious mid-subtropical zone.The floristic element of spermatophyte genus can be divided into 12 distribution types and 8 variant types.The tropical distribution types account for 59.62%of total generic number and the temperate elements account for 38.46% of total generic number.The biological spectrum analysis showed that the phanerophyte accounts for 54.36% of total species number and Microphanerophyta takes the dominant position in the community. Geophyta and chamaephytes account for a larger proportion and the herbaceous layer consists of ferns and perennial herb mainly.The vertical structure of the community consists of arborous layer,shrub layer and herbaceous layer.The Simpson index and Shannon-Wiener index of the community vertical structure is herbaceous layer >shrub layer>vine layer>arborous layer,and various diversity indexes of herbaceous layer and shrub layer are higher than arborous layer and vine layer.
