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福建南平安曹下老龄杉木群落生态特征

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通过2 400 m2样地调查,研究福建南平溪后安曹下76年生杉木丰产林群落山坡和山洼部位的植物区系组成、群落外貌、多样性指数等群落生态特征,结果表明:老龄杉木群落物种组成丰富,共有维管束植物71科,119属,168种;蕨类植物种类比例大;种子植物属的分布区类型以泛热带成分占的比例最高(山坡和山洼部分分别为27.59%和34.55%),热带性分布成分占优势(山坡和山洼部分分别为70.11%和74.55%),体现了群落的中亚热带性质;各层次的多样性表现为:灌木层(包括幼苗幼树)>草本层>乔木层;坡位因子对老龄杉木群落生态特征产生一定的影响.
Ecological Features of an Old-growth Chinese Fir Community at Ancaoxia in Nanping of Fujian Province
The ecological features of a 76-year-old Chinese fir community, such as floristic composition , community appearance, and plant species diversity were studied. The sample plots were located at Ancaoxia, Nanping, Fujian Province, with an area of 2 400 m2 . The results showed that the community had plentiful flora belonging to 71 families, 119 genera and 168 species, and with a high percentage of fern species. Pantropic had the highest proportion among different areal types of genus of spermatophyte in the community (27. 59% in the hillside and 34. 55% in the low-land). The dominant areal types of genus of spermatophyte in the community were tropical components (70. 11 % in the hillside and 74. 55% in the low-land) , reflecting the middle subtropical characteristics of the community. The order of Shannon-Wiener species diversity index was shrub layer (including tree seedlings and saplings) > herb layer > tree layer. Environmental factor of slope position had some impacts on the ecological features of the old-growth Chinese fir community.

Old-growth Chinese fircommunity featuresflora analysis

何宗明、陈光水、谢锦升、游水生、杨玉盛

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福建农林大学,林学院,福州,350002

福建师范大学,地理科学学院,福州,350007

老龄杉木 群落特征 区系分析

福建省教育厅资助项目

K02051

2007

亚热带资源与环境学报
福建师范大学

亚热带资源与环境学报

影响因子:0.425
ISSN:1673-7105
年,卷(期):2007.2(1)
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