中国科学院昆明植物研究所机构知识库
Advanced  
KIB OpenIR  > 昆明植物所硕博研究生毕业学位论文  > 学位论文
题名: 云南南溪河石灰岩山种子植物区系的初步研究
作者: 张美德
学位类别: 硕士
答辩日期: 2007-06-04
授予单位: 中国科学院昆明植物研究所
授予地点: 昆明植物研究所
导师: 税玉民
关键词: 南溪河流域 ; 石灰岩 ; 种子植物区系
学位专业: 植物学
中文摘要: 在前人工作的基础上,通过广泛的文献资料收集、野外调查、标本采集、室内鉴定及种类分析等一系列工作,对云南南溪河流域石灰岩山种子植物区系的组成、性质、特有现象、起源和演化等方面进行了研究和探讨,主要结果如下: 1. 南溪河流域种子植物种类丰富。目前本区共记载有野生种子植物176科787属1786种(含种下等级),包括裸子植物5科6属9种;双子叶植物149科619属1437种,单子叶植物22科162属340种。在调查中发现新种5个、中国新记录属3个、中国新记录种13个、云南新记录种8个(2003年~2007年)。 2. 南溪河流域种子植物区系表现出由热带向亚热带过渡的热带北缘性质。在区系组成上,热带性质的科有103科,占总科数的58.52%;温带性质的科有33科,占总科数的18.75%。热带性质的属有581属,占总属数的73.83% ;温带性质的属有157属,占总属数的19.95%。热带性质的种有1044种,占全部种数的58.62%;温带性质的种有705种,占全部种数的39.58%。统计分析结果显示,南溪河流域种子植物区系具有从热带向亚热带过渡的热带北缘性质,反映了其植物区系热带起源的历史事实,是研究中南半岛植物区系与中国西南地区植物区系联系的重要环节;同时,南溪河流域位于泛北极植物区和古热带植物区的交界处,是研究热带植物区系向亚热带及温带地区植物区系演化的关键地段。 3. 南溪河流域种子植物特有现象非常丰富。具有9个中国特有属,616个中国特有种,其中,南溪河流域特有种有49种。在9个中国特有属中,8个属在系统位置上都比较原始或古老,显示了本区区系的古老性;而地区特有种较多,充分反映了本区植物种类分化强烈的特点。 4. 除了热带性质外,本区另一个特点是石灰岩特色显著. 在本区的9种裸子植物中, 2/3的种类为石灰岩山专性种。而在49个地区特有种中, 79.59%(39种)的种类为石灰岩山专性种。另外,从本区石山季雨林的乔木层优势种来看,蚬木Excentrodendron hsiemmu、焕镛木Woonyoungia septentrionalis等群落上层优势种都是石灰岩专性种。这些都揭示了本区植物区系浓厚的石灰岩性质。 5. 通过区系比较确定了研究地区的区系地位。通过与四个典型的周边石灰岩地区区系进行植物区系的科、属相似性比较以及区系组成比较分析,发现本区与北部湾地区的越南菊芳的关系最为亲密。而属和种的分析以及兰科等四个重要科的种水平分析都显示了本区与越南(尤其是越南北部)的密切关系。因此,本区的区系地位是:古热带植物区(Paleotropic Kingdom)— 马来西亚植物亚区(Malaysian Subkingdom)— 北部湾地区(Tongking Gulf Region)。 6. 南溪河流域种子植物区系是在热带起源、就地演化的基础上,既有热带东南亚植物区系深刻的历史渊源,又受东亚植物区系(我国亚热带植物甚至温带植物区系)的影响,使本区成为南北两大类型植物区系交汇融合的过渡地带。
英文摘要: The floristic composition, characteristics, endemism, origin and evolution were studied on the base of literature checked, field investigation, specimens checked and previous research work. The main results are as follows. 1. The Nanxi River Region is rich in seed-plant species. So far, 176 families, 787 genera and 1786 species (including varieties and subspecies) have been recorded from this area. Among them, 5 families, 6 genera and 9 species are gymnosperms; 149 families, 619 genera and 1437 species are dicotyledon, 22 families, 162 genera and 340 species are monocotyledon. During our investigations (2003-2007), 5 new species were found. What’s more, 3 genera are new records in China, 13 species are new records in China, and 8 species are new records in Yunnan Province. 2. The statistic of floristic composition shows that 103 families are tropical which contribute to 58.52% of total families; 33 families are temperate which contribute to 18.75% of tatal families. On the level of genus, 581 genera are tropical which contribute to 73.83% of total genera; 157 genera are temperate which contribute to 19.95% of total genera. And on the level of species, 1044 species are tropical which contribute to 58.62% of total species, 705 species are temperate which contribute to 39.58% of total species. The statistic reveals the fact that Nanxi River Region situates in the border of tropical Asia’s northern parts, its flora has the transitional character of tropical to subtropical, so the Nanxi River Region is an important part when studying the flora of Indo–Chinese Peninsula. On the other hand, this area situates in the crossing place of Holarctic Kingdom and Paleotropic Kingdom, which makes it a key part of tropical flora study. 3. The endemic plants in the limestone flora in Nanxi River Region are rich, 9 genera are endemic to China, 616 species are endemic to China. And among the Chinese endemic species, 49 species are endemic to Nanxi River Region. Among the 9 genera, 8 are primary, which reveals the old character of this flora. And the 46 Region endemic species reflects the fact that the endemic elements differentiated strongly in Nanxi River Region. 4. Besides the tropical character, the rich limestone flora is another character of Nanxi River Region. As far as 9 species of gymnosperms are concerned, 2/3 species are limestone exculusive species. And in the 47 Nanxi River Regional endemic species, 79.59% are limestone exculusive species. While as far as the dominant species in limestone monsoon rain forest are concerned, Excentrodendron hsiemmu, Woonyoungia septentrionalis are also limestone exculusive species. These all reveal the lomestone flora character of Nanxi River Region. 5. After the comparison with four adjacent limestone flora on the level of family and genus, we found the flora of Nanxi River Region is most closely related to the flora of Cuc Phuong (Vietnam). And the analyse on the level of genus and species reveal the fact that Nanxi River Region has a close relationship with Vietnam. So the floristic position of Nanxi River Region is: Paleotropic Kingdom — Malaysian Subkingdom — Tongking Gulf Region. 6. The flora of Nanxi River Region is on the base of tropical-origination and regional-differention, it was affected deeply by tropical SE Asian flora and E Asian flora, which makes it a transitional meeting area of South and North flora.
语种: 中文
内容类型: 学位论文
URI标识: http://ir.kib.ac.cn/handle/151853/214
Appears in Collections:昆明植物所硕博研究生毕业学位论文_学位论文

Files in This Item:
File Name/ File Size Content Type Version Access License
10001_200428010615027张美德_paper.doc(8950KB)----限制开放-- 联系获取全文

Recommended Citation:
云南南溪河石灰岩山种子植物区系的初步研究.张美德[d].中国科学院昆明植物研究所,2007.20-25
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[张美德]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[张美德]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院昆明植物研究所 - Feedback
Powered by CSpace