西南大学校园种子植物区系组成及特征分析  

A Floristic Study of Seed Plants in the Campus of Southwest University

作　　者：字发[1] 彭黎立[1] 张登萍[1] 张家辉[1] 邓洪平[1] 

机构地区：[1]西南大学生命科学学院,三峡库区生态环境教育部重点试验室,重庆400715

出　　处：《西南师范大学学报（自然科学版）》2010年第3期156-161,共6页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：重庆市自然科学基金计划资助项目(CSTC,2008BB5256);西南大学本科生科技创新基金重大资助项目(0817001)

摘　　要：在对西南大学校园种子植物进行拉网式调查、标本采集和鉴定的基础上,对其科、属的分布区类型进行了统计分析,得出其区系特征如下:①种子植物类型较为丰富,区系成分较为复杂.校园共有种子植物125科,452属,671种;其中栽培植物357种,占53.2%;共包含10种科的分布区类型、15种属的分布区类型及变型.②植物区系成分中,以热带成分为主,温带成分也较为丰富,呈现出一定的过渡性.③特有、珍稀濒危及重点保护植物种类较为丰富.④属种系数相对较高,说明其生境较为简单,这与栽培植物的来源多样性密切相关.Based on the statistics and analysis of areal-types of families,generas,species on the present flora in the campus of Southwest University,the floristic characteristic indicates as follows： ① The floristic components are complex and taxa are abundant.It is now known that there are 671 species（including varieties） of seed plants,which belong to 452 genera and 125 families.② The flora shows a transition which owns an obvious tropic zone character and abundant temperate zone taxa at the same time.③ The endemic,endangered and protected species are very abundant.④ The genera coefficient is 67.36%,which indicates that the advantaged groups are not obvious.It is closely related to the diversity of the source of cultivated plants.

关 键 词：西南大学 种子植物 区系特征 

分 类 号：Q948.5[生物学—植物学]