| 祁连山金强河流域种子植物区系分析 |
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| 引用本文： | 曹文侠,徐长林,方强恩,马磊.祁连山金强河流域种子植物区系分析[J].草原与草坪,2012,32(6):42-47. |
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| 作者姓名： | 曹文侠 徐长林 方强恩 马磊 |
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| 作者单位： | 甘肃农业大学草业学院／草业生态系统教育部重点实验室／中-美草地畜牧业可持续发展研究中心／甘肃省草业工程实验室,甘肃兰州,730070 |
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| 基金项目： | 博士点基金(20106202120004);国家牧草产业技术体系(CARS-35);草业生态系统教育部重点实验室基金资助 |
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| 摘 要： | 金强河发源于祁连山东段冷龙岭东麓,位于黄河一级支流庄浪河上游,区内海拔2 950～4 300m。按照吴征镒的中国种子植物分布区划分对该流域植物区系进行了分析,并与整个祁连山植物区系进行了比较。结果表明,金强河地区有野生种子植物52科、171属、401种,地理成分以北温带成分和中国—喜马拉雅成分为优势;金强河流域具有明显的过渡性及各种区系成分相渗透的特点,并形成了一些青藏高原特有成分;流域拥有整个祁连山地区全部属分布区类型,体现了地理成分在属级水平上的多样性和代表性;植物区系成分以年轻成分为主,中国特有属较少。
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| 关 键 词： | 金强河流域 种子植物 植物区系 区系特征 |
Floristic analysis of seed plants in jinqiang river basin in Qilian Mountain |
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| CAO Wen-xia,XU Chang-lin,FANG Qiang-en,MA Lei.Floristic analysis of seed plants in jinqiang river basin in Qilian Mountain[J].Grassland and Turf,2012,32(6):42-47. |
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| Authors: | CAO Wen-xia XU Chang-lin FANG Qiang-en MA Lei |
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| Institution: | (College of Pratacultural Science,Gansu Agricultural University/Key Laboratory of Grassland Ecosystem, Ministry of Education/Pratacultural Engineering Laboratory of Gansu Province/Sino-U.S.Centers for Grazingland Ecosystem Sustainability,Lanzhou 730070,China) |
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| Abstract: | Jinqiang River rises in the eastern Qilian Mountains with elevation range from 2 950 to 4 300 m and it is located in the upstream of Zhuang Lang River,the first branch of the Yellow River.The paper studied the flora of seed plants according to the areography of the seed plants of China made by Wu Zhengyi and compared it to the whole plant flora in Qilian Mountain.The results showed that there were 401 species belonging to 171 genera and 52 families,the dominant flora were north temperate and China-Himalayan flora.Jinqiang River basin had significant features of transition and interpenetration of floristic composition,as well as the endemic plants in Qinhai-Tibet Plateau.The basin had entire genera type of Qilian Mountain and it indicated the geographic diversity and representation at genus level.The flora was mainly composed by the young components with few Chinese endemic genera. |
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| Keywords: | flora seed plants floristic characteristics Jinqiang River basin |
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