摘要
杨镇湿地共有维管束植物243种(或变种、变型),隶属于55科,157属.其中蕨类植物4科,4属,5种:双子叶植物38科,108属,167种;单子叶植物13科,45属,71种.种子植物属的分布区类型有13个类型,5个变型.其中世界分布区类型有42属:温带分布区类型共有66属;热带分布类型共有45属.温带地区类型占主导,温带成分较丰富.
The vascular plants in wetland of Yanzhen,Beijing comprise 243 species（varieties of form）,which belong to 15 genera and 55 families.Among them,4 family,4 genera,5 species belong to Pteridophyta;38 families,108 genera,167 species belong to Dicotyledoneae and 13 families,45 genera,71 species belong to Monocotyledoneae.In the flora,the geographic distribution of seed plants in this area can be divided into 13 distribution types and 5 subtypes,which comprise 66 genera of the temperate,45 genera of the tropics and 42 genera of the cosmopolitan.The type of Temperate occupy an leading position,the element in temperate zone is very rich.
出处
《首都师范大学学报（自然科学版）》
2007年第4期46-49,58,共5页
Journal of Capital Normal University：Natural Science Edition
基金
北京市自然科学基金(222126)
重点开放墓金
资源环境与地理信息系统北京市重点实验室
关键词
区系
湿地
维管植物
杨镇
北京.
flora,wetland vascular plant,Yangzhen,Beijing.
