| 四川省黄龙自然保护区种子植物区系研究 |
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| 引用本文： | 陈建民,何平,邹新慧,肖宜安,马洪菊.四川省黄龙自然保护区种子植物区系研究[J].武汉植物学研究,2003,21(1):54-60. |
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| 作者姓名： | 陈建民 何平 邹新慧 肖宜安 马洪菊 |
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| 作者单位： | 1. 西南师范大学生命科学学院,重庆,400715
2. 西南师范大学生命科学学院,重庆,400715;江西省井冈山师范学院生命科学系,江西吉安,343009 |
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| 基金项目： | 国家自然科学基金资助项目 ( 30 0 70 0 80 ) |
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| 摘 要： | 在对四川省黄龙自然保护区初步调查的基础上，对其种子植物科、属、种分布区类型进行了统计和分析。结果表明：（1）区内有种子植物74科，208属，474种；（2）植物区系优势科、属明显。含20种以上的优势科数虽只占总科数的8.7％，但其所含属数和种数却分别占总属数和总种数的38.94％和44.09％；含5种以上的26个优势属所含的种数占区内总种数的37.34％，这些科、属在本区系组成中占明显的主导地位；（3）在科、属、种3个层次上，植物区系均表现出明显温带性质。尤其在属级水平上，温带分布占总属数的82.89％，其中北温带分布占总属数的49.73％，表现出明显温带性质，并以北温带成分为主；（4）中国特有种丰富，达314种，占区内总种数的66.39％；（5）植物区系起源古老，地理成分复杂；（6）本植物区系与西南西北地区，特别是云南地区联系紧密。
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| 关 键 词： | 种子植物 分布区类型 区系 四川省黄龙自然保护区 |
| 文章编号： | 1000-470X(2003)01-0054-07 |
| 收稿时间： | 2001-12-16 |
| 修稿时间： | 2002-12-23 |
A Floristic Study of the Seed Plants on Huanglong Nature Reserve in Sichuan Province |
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| Affiliation: | 1. School of Life Science, Southwest China Normal University, Chongqing 400715, China;2. Department of Life Sciences, Jinggangshan Normal College, Ji'an 343009, China |
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| Abstract: | The Huanglong Nature Reserve is a provincial reserve,which is located in northwest of Sichuan Province.From the statistics and analysis of the areal-types of family,genus and specie basing primary survey of the Huanglong Nature Reserve,the results indicate as follow:(1) There are 474 species in 208 genera and 74 families of seed plants in the Nature Reserve.(2) The dominant families and genera are prominent.These families containing more 20 species only account for 8.7% of overall families,but genera in which account for 38.94% of overall genera and species account for 40.09% of overall species.The 26 dominant genera containing more 5 species account for 37.34% of overall species.take up dominant degree.(3) The flora of seed plants in the region shows distinctly the characteristic of Temperate in the level of family,genus and specie.Especially in the level of genus,the genus of Temperate account for 82.89% of overall genus,and the genus of North Temperate account for 49.73% of overall genus,so the characteristic of Temperate is distinct,and the elements of North Temperate account for huge proportion.(4) Chinese endemic species of seed plants in Huanglong Nature Reserve are abundant.(5) The flora are ancient origin and very complex in geographical elements.(6) The flora of seed plants in the region relates the flora of Southwest and Northwest of China tightly,especially the flora of Yunnan. |
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| Keywords: | Seed Plants Flora The Areal-types Huanglong Nature Reserve in Sichuan Province |
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