湖北大崎山自然保护区种子植物区系研究.doc

(新投稿)
湖北大崎山自然保护区种子植物区系研究
雷正玉作者简介:雷正玉(1970—),女,副教授,主要从事植物生态学和生物多样性研究。E-mail:viviyuxiao@。
蔡京勇白涛江建国王少明
(湖北生态工程职业技术学院, 武汉,430200)
摘要:通过野外调查和标本采集,在进行植物系统调查的基础上,对湖北省大崎山自然保护区植物区系基本组成和科属地理成分进行了分析,并与邻近山地植物区系进行了R/T比值的比较。经鉴定保护区内有种子植物142科540属1042种,其中,裸子植物7科14属17种,被子植物135科526属1025种。区系分析表明,该区区系复杂,具有15种分布类型。植物区系起源古老,温带性质明显,热带成分丰富,与华东植物区系联系密切。
关键词:种子植物;植物区系;地理成分
中图分类号 文献标识码 A
Study on Plant Flora in Daqi Mountain Nature Reserve of Hubei Province
LEI-zhengyu, CAI-jingyong, BAI-tao, JIANG-jianguo,WANG-shaoming
(Hubei Ecology Vocational Collece, Wuhan, 430200,China)
Abstract: A basic ingredient analysis of plant flora and geographic element of plant genus and family was conducted through the field survey and specimen collection, based on the survey of plant flora, and an R/T parison between the flora in Daqi Mountain and adjacent mountain floras was made. Plant taxonomy identification indicates that spermatophytes in the nature prises 1042 species, 540 genera, fall in 142 families, of which 17 species of gymnosperm, 14 genera fall in 7 families, while 1025 species of angiosperm, 526 genera in 135 families. The analysis of flora demonstrates that the region harbours 15 flora distribution types, with plexity flora, paleo-origin of plant flora, distinct trait of temperate zone, abundant ingredient of tropical zone, and close connection to the flora of East China.
Key words: sper