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德夯风景区植物区系的研究(I)——植物区系组成分析 被引量:16

THE STUDY OF FLORAL IN DEHANG REGION(Ⅰ) A ANALYSIS ON FLORISTIC COMPOSITION
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摘要 本文报道了德夯风景区的植物区系组成。区内有维管束植物155,565中,1311种。其中蕨类植物有28科,51属,116种;裸子植物有5科,8属,9种;被子植物有122科,506属,1186种,分别占该区总数的8.85%,0.69%和90.46%。本本植物有476种,草本植物有690种,藤本植物有145种,分别占该区总种数的36.31%,52.62%,11.06%。被子植物中含10种以上的有32科,代表科有樟科、壳斗科、山茶科、桑科、忍冬科、菝葜科等。 Dehang is a scenic spot located in west-Hunan 28°15′, -28°43′N and 109°3O′ -109°45′,E, with an area of 25333ha. The nora consists of 1311 species of vascular plants belonging to 565 genera and 155 families, in which 116 species of ferns belonging to 51 generms and 28 families take up 8. 85% 19 species of gymnosperms to 8 genera and 5 families take up 0.69%;1185 species of angiosperms to 506 genera and 122 families take up 90. 46% of the total species. There are 476 species of xylophytaI 690 species of herb and 145 species of liana, which accounting for 36. 31%, 52. 62%, 11. 06% respectively. There are 32 families, which contain 10 or more species. The principal representive families are Lauraceae, Fagaceae, Theaceae, Moraceae, Caprifoliaceae Smilacaceae etc. These resullts show that the flora is subtropical in nature. Fernsare elements of herb layer under evergeen forest. The major gymnosperms have shaped purebred forest. Angiosperm is a main part of the hole plant community. The dominant elements in ardor layer of evergreen brod-leaf forest are Fagaceae Lauraceae, Theaceae.
作者 陈功锡
机构地区 吉首大学生物系
出处 《吉首大学学报》 1994年第6期74-79,共6页
基金 湖南省教委资助
关键词 维管束植物 植物区系 湖南 德夯风景区 区系组成 木草植物 草本植物 Vascular plant Floristic composision Hunan Dehang region
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