乌拉特荒漠草原木本植物区系分析  

Analysis of Urad desert steppe woody plant flora

作　　者：赵杏花 任雅涛 赵宏胜 冯霜 贾荣 兰登明 ZHAO Xing-hua;REN Ya-tao;ZHAO Hong-sheng;FENG Shuang;JIA Rong;LAN Deng-ming(College of Desertification Control Science and Engineering,Inner Mongolia Agricultural University,Hohhot 010019,Inner Mongolia,China)

机构地区：[1]内蒙古农业大学沙漠治理学院,内蒙古呼和浩特010019

出　　处：《干旱区研究》2020年第6期1537-1543,共7页Arid Zone Research

基　　金：国家科技部基础资源调查专项(2017FY100204);内蒙古农业大学标本自制项目(YZ2017012)资助。

摘　　要：以查阅文献和野外实地调查相结合的方法,对乌拉特荒漠草原的野生木本植物进行调查、统计、排序,并对该区系木本植物的水分生态类型、地理成分进行分析。结果表明:乌拉特荒漠草原植物区系有野生木本植物85种,隶属于27科,46属。水分生态类型以旱生植物为主,旱生植物种数占总种数的78.82%。植物的地理成分以亚洲中部分布型和古地中海分布型占绝对优势,二者共计63种,占区系总种数的74.14%。区系中有国级珍稀濒危植物9种,隶属于8科,8属,占区系总种数的10.59%。Based on literature review and field investigation,the woody plant flora of the Urad desert steppe was investigated and analyzed.In addition,the water ecotypes and geography elements of woody plants in this area were counted and assessed.The results showed that 85 species of wild woody plants,belonging to 46 genera and 27 families were present in the area.The main water ecotype was xerophytes,which accounted for 78.82%of the total species.The geography elements were dominated by the Middle Asia distribution and the Ancient Mediterranean distribution,with 63 species in total,accounting for 74.14%of the total flora.In the Urad desert steppe region,nine species(10.59%)of nationally rare and endangered plants,belonging to eight families and eight genera were identified.

关 键 词：木本植物 植物区系 水分生态类型 地理成分 珍稀濒危植物 乌拉特荒漠草原 

分 类 号：Q948.5[生物学—植物学]