陕西林业科技
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SHAANXI FOREST SCIENCE AND TECHNOLOGY
2012年
5期
91-94
,共4页
杨春玉%杨汉远%袁茂琴%杨加文%唐绍平
楊春玉%楊漢遠%袁茂琴%楊加文%唐紹平
양춘옥%양한원%원무금%양가문%당소평
喀斯特%白云质砂石山%灌木林%多样性
喀斯特%白雲質砂石山%灌木林%多樣性
객사특%백운질사석산%관목림%다양성
Karst%dolomite rocky hills%shrub%diversity
本文对贵州凯里喀斯特区最难恢复的白云质砂石山天然次生灌木林的植物多样性进行了初步研究。对研究区6个样地共计2 400m2植被的调查研究结果表明:白云质砂石山天然次生灌木林木本植物有21科37属49种,草本植物有6科10属15种,植物组成以落叶灌木树种+多年生草本为主;白云质砂石山天然次生灌木林群落各层次的优势种都比较明显,灌木层以金佛山荚蒾Viburnum chins-hanense、火棘Pyracantha fortuneana占优,草本层以五节芒Miscanthus floridulus、白茅Imperata cy-lindrical、荩草Arthraxon hispidus处于优势地位;物种丰富度和多样性特征指数都小,生境资源匮乏是导致白云质砂石山物种丰富度、植物多样性小的主要原因。
本文對貴州凱裏喀斯特區最難恢複的白雲質砂石山天然次生灌木林的植物多樣性進行瞭初步研究。對研究區6箇樣地共計2 400m2植被的調查研究結果錶明:白雲質砂石山天然次生灌木林木本植物有21科37屬49種,草本植物有6科10屬15種,植物組成以落葉灌木樹種+多年生草本為主;白雲質砂石山天然次生灌木林群落各層次的優勢種都比較明顯,灌木層以金彿山莢蒾Viburnum chins-hanense、火棘Pyracantha fortuneana佔優,草本層以五節芒Miscanthus floridulus、白茅Imperata cy-lindrical、藎草Arthraxon hispidus處于優勢地位;物種豐富度和多樣性特徵指數都小,生境資源匱乏是導緻白雲質砂石山物種豐富度、植物多樣性小的主要原因。
본문대귀주개리객사특구최난회복적백운질사석산천연차생관목림적식물다양성진행료초보연구。대연구구6개양지공계2 400m2식피적조사연구결과표명:백운질사석산천연차생관목림목본식물유21과37속49충,초본식물유6과10속15충,식물조성이락협관목수충+다년생초본위주;백운질사석산천연차생관목림군락각층차적우세충도비교명현,관목층이금불산협미Viburnum chins-hanense、화극Pyracantha fortuneana점우,초본층이오절망Miscanthus floridulus、백모Imperata cy-lindrical、신초Arthraxon hispidus처우우세지위;물충봉부도화다양성특정지수도소,생경자원궤핍시도치백운질사석산물충봉부도、식물다양성소적주요원인。
A preliminary study of plant diversity in the most difficult to restore natural secondary shrub forest in dolomite rocky hills in Karst region about kaili Guizhou.The research with six sample plots total 2400m2 of vegetation showed that 49 woody plants species belonging to 21 families and 37genera,15 herbs belonging to 6 families and10 genera.The main component of plant is shrub + perennial.There existed the comparatively obvious dominant species within each layer of the natural secondary shrub forest in dolomite rocky hills: Viburnum chinshanense and Pyracantha fortuneana in shrub layer,Miscanthus floridulus and Imperata cylindrical and Arthraxon hispidus in herb layer as the dominant species.Richness of plant species index and diversity index were lower due to harsh habitat.