二连浩特地区种子植物区系研究  

Studies on Seed Plant Flora of Erlianhot

作　　者：李红颖[1] 刘果厚[1] 刘利红[1] 刘冠志[1] 兰庆 王健[1] 曹瑞[1] 

机构地区：[1]内蒙古农业大学生态环境学院,内蒙古呼和浩特010019

出　　处：《中国草地学报》2016年第4期35-41,共7页Chinese Journal of Grassland

基　　金：内蒙古自治区科技创新引导奖励资金资助项目(20121607)

摘　　要：对二连浩特地区的种子植物进行了组成特征和区系地理成分分析。结果表明:二连浩特种子植物共254种,隶属于136属39科;区系优势现象明显,单种科和寡种科占总科数的69.23%,单种属和寡种属占总属数的93.38%;植物生活型以草本植物为主,水分生态型以旱生植物为主,二者分别占总种数的80.71%和60.63%;温带成分占绝对优势,温带分布科、属、种分别占总数的69.23%、75.00%和85.04%;区系起源新老并存,以新生进化成分为主。The composition characteristics and floristic composition of seed plants of Erlianhot were analyzed.The results showed that plant species in the study area were relatively poor,there were 254 seed plants belonged to 136 genera and 39 families.Families and genera composition analysis showed that the phenomenon of superiority of plant flora was obvious,families of single and widowed species accounted for69.23% of total families,genera of single and windowed species accounted for 93.38%.The plant life forms were mainly herb,the water ecotypes were mainly xerophytes,herbs and xerophytes accounted for80.71% and 60.63% respectively.Temperate compositions were dominant absolutely,families,genera and species distributed in temperate accounted for 69.23%,75.00% and 85.04% of total families,genera and species respectively.The origin of the flora was of coexistence of old and new,and the flora was dominated by young components.

关 键 词：植物区系 生活型 水分生态型 种子植物 二连浩特 

分 类 号：S948.5[农业科学—水产养殖]