兰州大学机构库 >生命科学学院
甘肃省华亭县种子植物区系研究
Alternative TitleFloristic geography of Huating in Gansu province
黄付强
Thesis Advisor蒲训
2015-05-28
Degree Grantor兰州大学
Place of Conferral兰州
Degree Name硕士
Keyword甘肃 华亭 种子植物 植物区系
Abstract本文通过野外实地调查以及对相关文献进行考证,对华亭县植物物种资源从科、属、种三个层次进行区系统计分析,并与相邻地区的植物区系进行相似性分析,得出以下结论: 1.华亭县植物资源较为丰富。共具有种子植物1231种,隶属于118科、508属。分别占甘肃种子植物总科数、属数、种数的65.19%、44.84%、25.17%。 2.植物区系具有明显的温带特征。科、属、种的地理分布类型都以温带成分占绝对优势,且优势科、优势属也多属各种温带成分。 3.华亭县种子植物科的地理分布类型共包括9个分布区类型,7 个变型;种子植物属的地理分布类型则包括15个分布类型16个变型,除了少部分中国本没有分布的变型以外涵盖了所有的分布型,区系成分较为复杂;热带成分占本区总属数18.57%,说明了本区的植物区系具有一定的热带亲缘且过渡性明显。 4.本区共有11个中国特有属,315种中国特有种以及9种甘肃特有种, 特有种类比较丰富。 5.植物区系成分以古老成分为主。 6.华亭县种子植物区系与小陇山、太白山的植物区系相似性最高,与崆峒山、六盘山、子午岭以及麦积山的区系次之,与祁连山和贺兰山的关系较为疏远。
Other AbstractIn this paper ,through the study of the related literatures and field work, the geographic distribution types at the species、genera and family levels were identified and taken into statistical analysis to the plant species resources of Huating,then compared with adjacent area to identify the relationships of floristic similarity among them. The conclusion is as follows : 1. Plant resources of Huating are abundant, consisted of 118 families、508 genera, 1231 species of seed plants, was 65.19%、44.84%、25.17% of the total number of families、genera and species in Gansu Province。 2. The temperate properties of the flora were obvious . The areal-types of families、genera、species of seed plants in Huating was given priority to with temperate components. In addition,The dominant families and dominant genera also belonged to temperate elements. 3. The composition is diversifie and has a transitional character.The families of Huating seed plants were divided into 9 areal types, 7 variants,and the genera can be divided into 15 distribution types 16 variants,nearly Covers all distribution type excpet a few variant. Tropical composition still account for 18.85% of the total number of genera in this area with a larger proportion,which suggested the features of transitional flora in Huating. 4.The endemic species in Huating were abundant in a total of 11 Chinese endemic genus, 315 species endemic to China, and nine endemic species in gansu province. 5. The origin of the flora is old,The aneient elements take the dominant Position. 6. The similarity coeffieients between Xiaolong Mountain and Taibai Mountain are the highest, the lower ones are those between Kongtong Mountain、Liupan Mountain、Ziwuling Forest Region and Maiji Mountain, the lowest ones are Qilian Mountain and Helan Mountain.
URL查看原文
Language中文
Document Type学位论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/221447
Collection生命科学学院
Recommended Citation
GB/T 7714
黄付强. 甘肃省华亭县种子植物区系研究[D]. 兰州. 兰州大学,2015.
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