重庆市璧山区城市绿地植物区系特征初步研究  

Preliminary study on floristic characteristics of urban green space plants in Bishan district of Chongqing city

作　　者：吴松成 陈霜 WU Song-cheng;CHEN Shuang(Chongqing Landscape and Gardening Research Institute,Chongqing 401329,China;Chongqing Urban Landscape Engineering Technology Research Center,Chongqing 401329,China;Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants,Chongqing 401329,China)

机构地区：[1]重庆市风景园林科学研究院,重庆401329 [2]重庆市城市园林绿化工程技术研究中心,重庆401329 [3]川渝共建乡土植物种质创新与利用重庆市重点实验室,重庆401329

出　　处：《湖北农业科学》2022年第4期103-105,120,共4页Hubei Agricultural Sciences

基　　金：重庆市科技计划资助项目(cstc2011pt~gc80019)。

摘　　要：重庆市璧山区城市绿地植物计113科295属452种(含种以下分类等级及栽培植物),其中蕨类植物2科2属2种,裸子植物7科21属31种,被子植物104科272属419种。对璧山区城市绿地植物区系的组成、地理成分及区系特征进行分析。结果表明,被子植物种类丰富,其种数占总种数的92.04%以上;生活型组成上以木本植物占优势;单种科、小型科众多,是区系的主体;属的区系组成中表现出由热带向温带过渡的性质。There are 452 species of urban green space plants belonging to 295 genera and 113 families in Bishan district of Chongqing(including subspecies classification and cultivated plants),including 2 species of ferns belonging to 2 genera and 2 families,31 spe⁃cies of gymnosperm belonging to 21 genera and 7 families,and 419 species of angiosperm belonging to 272 genera and 104 families.The floristic composition,geographical composition and floristic characteristics of urban green space plants in Bishan district were ana⁃lyzed.The results showed that angiosperm species were rich,accounting for more than 92.04%of the total species.The life form com⁃position was dominated by woody plants;There were many single and small families,which were the main body of the flora;The gen⁃era were characterized by transition from tropics to temperate belt.

关 键 词：绿地植物 区系特征 统计与分析 璧山区 

分 类 号：Q948[生物学—植物学]