| 三峡库区秭归县种子植物区系研究 |
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| 引用本文： | 厉恩华,王勇,吴金清,赵子恩.三峡库区秭归县种子植物区系研究[J].武汉植物学研究,2002,20(5):371-379. |
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| 作者姓名： | 厉恩华 王勇 吴金清 赵子恩 |
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| 作者单位： | 1. 中国科学院武汉植物研究所,武汉,430074
2. 中国科学院武汉植物研究所,武汉,430074;湖北省秭归县林业局,秭归,443600 |
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| 基金项目： | 中国科学院武汉植物研究所所长基金支持。 |
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| 摘 要： | 秭归位于三峡库区，为坝上库首第一县，其种子植物区系具有以下特征，植物种类丰富，共有野生种子植物138科703属1662种，科，属的优势现象明显，单种属和寡种属数量多，植物区系具有古老，孑遗，原始性，分布区类型多样，地理成分复杂，温带性质明显，泛热带成分丰富，并与热带成分有较广泛的联系，表现出一定的过渡性，特有现象明显，在属和种的水平上对其分布特点统计分析，结果表明，本区系与四川共有成分最多，与华中植物区诸省联系最密切，从而与川东－鄂西为我国三大特有中心之一的观点相一致，也支持吴征镒华中植物区划分的观点。
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| 关 键 词： | 三峡库区 秭归县 种子植物 植物区系 |
| 文章编号： | 1000-470X(2002)05-0371-09 |
| 收稿时间： | 2002-3-8 |
| 修稿时间： | 2002-6-5 |
A Study on the Flora of the Seed Plants from Zigui County of the Three-Gorge Reservoir Area |
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| LI En-Hua,WANG Yong,WU Jin-Qing,ZHAO Zi-En.A Study on the Flora of the Seed Plants from Zigui County of the Three-Gorge Reservoir Area[J].Journal of Wuhan Botanical Research,2002,20(5):371-379. |
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| Authors: | LI En-Hua WANG Yong WU Jin-Qing ZHAO Zi-En |
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| Affiliation: | 1. Wuhan Institute of Botany, The Chinese Academy of Sciences, Wuhan 430074, China;2. Forestry Bureau of Zigui County, Zigui, Hubei 443600, China |
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| Abstract: | Zigui is the first county situated in the upper reaches of the dam in the Three-Gorge Reservoir Area.The following characteristics were found in the study of the flora of the seed plants in this county:It is abundant in wild species,containing 1662 species of seed plants which belong to 703 genera and 138 families.Dominance phenomenon is obvious.The flora is archaic,relic and pristine;Single-species and few-species genera are rich.The types of distribution are various and geographical elements are complex,and dominance of temperate elements is obvious and subtropical elements are plentiful.It has much in common with tropical flora,and shows some transitional nature.Endemism is notable,according to the statistics in the levels of species and genera;this flora has the most abundant common endemic species with that of Sichuan Province.It is closely related with the provinces of the floristic region of Central China,so it is consistent with the opinion that Eastern Sichuan and Western Hubei Province is one of the three endemic centers,and also supports Wu Zhengyi's opinion on the partition of the floristic region of Central China. |
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| Keywords: | The Three-Gorge Reservoir Area Zigui County Seed plants Flora |
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