PDF《高黎贡山南北段种子植物区系比较研究》

热带亚热带植物学报 2016, 24(3):

327 ~

332 Journal of Tropical and Subtropical Botany 收稿日期: 2015C08C17 接受日期: 2015C11C04 基金项目: 云南省教育厅科研课题(2010Y049)资助 This work was supported by the Foundation of Yunnan Educational Committee (Grant No.

2010Y049). 作者简介: 刘经伦(1976~ ), 男,硕士,副教授,主要从事植物分类和植物区系地理学研究.E-mail: [email protected] 高黎贡山南北段种子植物区系比较研究 刘经伦

1 ,陈凯

2 ,汪建云

1 ,陈文华

1 (1. 保山学院资源环境学院,云南 保山 678000;

2. 中国科学院昆明植物研究所,昆明 650204) 摘要: 为了解高黎贡山的种子植物资源, 采用植物区系研究原理和方法, 将高黎贡山南段与北段种子植物区系进行对比分析. 结果表明, 南段有

192 科878 属2807 种植物, 种可分为

15 个分布类型

9 亚型

14 个变型;

北段有

172 科778 属2816 种植物, 种可分为

15 个分布类型

9 亚型

20 个变型.通过比较科属分化程度、数量构成及古热带成分比例等,南段区系具有较为古老 和保守的特点,而北段植物区系具有较为年青和新生的特点.回归分析显示南北段区系地理成分相似度较高,而科属相似性 却因分化在逐级降低. 关键词:高黎贡山;

种子植物;

区系;

相似性 doi: 10.11926/j.issn.1005-3395.2016.03.011 Comparative Study on Seed Plant Flora between Southern and Northern Gaoligong Mountains LIU Jing-lun1 , CHEN Kai2 , WANG Jian-yun1 , CHEN Wen-hua1 (1. College of Resources and Environment, Baoshan College, Baoshan 678000, Yunnan, China;

2. Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China) Abstract: In order to understand the seed plant resources in Gaoligong Mountains, the seed plant flora between the southern and the northern Gaoligong Mountains were compared by using floristic theories and methods. The results showed that there were

2807 species, belonging to

192 families and

878 genera in the southern Gaoligong Mountains, and could be divided into

15 areal-types,

9 subtypes and

14 forms at species level. There were

2816 species, belonging to

172 families and

778 genera in the northern Gaoligong Mountains, could be divided into

15 areal-types,

9 subtypes and

20 forms at species level. From the differentiated degree, quantitative composition, and the ratio of palaeotropic components of families and genera, it was indicated that the southern flora was ancient and conservative, while the northern flora was young and newborn. The regression analysis showed that the southern flora and the northern flora were quite similar in geographical components, while the similarities of families and genera were gradually descending due to differentiation. Key words: Gaoligong Mountain;

Seed plants;

Flora;

Similarity 高黎贡山位于亚洲印度次大陆和青藏高原缝 合地带的东缘,是横断山脉的重要组成部分,全境 面积 1.1*105 km2[1] .受印度洋西南季风影响,该地 区总体上属于季风气候类型, 日照充足, 物种丰富, 是全球生物多样性最丰富地区之一.作为国家级自 然保护区的高黎贡山,有非常特殊的地质历史和独 特的生态自然环境.

20 世纪初就有多位学者深入高 黎贡山进行考察研究,1902 年美国著名学者 J. F. Rock、1904 年英国博物学家 G. Forrest、1915 年奥 地利学者 H. Handel-Mazzetti 和1922 年英国学者 F.

328 热带亚热带植物学报 第24 卷K. Ward 等;