内蒙古乌兰坝-石棚沟自然保护区苔藓植物区系研究  

Bryoflora in Wulanba-Shipenggou Nature Reserve of Inner Mongolia

作　　者：毕庚辰[1] 白学良[1] 冯超[1] 寇瑾[1] 

机构地区：[1]内蒙古大学生命科学学院,呼和浩特010021

出　　处：《内蒙古大学学报（自然科学版）》2013年第3期294-301,共8页Journal of Inner Mongolia University：Natural Science Edition

基　　金：国家自然科学基金资助项目(30870160;31170497);国际(地区)合作与交流项目(31011120089)

摘　　要：首次报道了内蒙古乌兰坝-石棚沟自然保护区苔藓植物39科、86属、181种(含1亚种,5变种),其中内蒙古新记录6种,中国新记录4种:长柄紫萼藓Grimmia longirostris Hook.,毛尖连轴藓Schistidium lancifolium(Kindb.)Blom.,平叶真藓Bryum laevifilum Syed.,凹叶毛灰藓Homomallium adnatum(Hedw.)Broth.从种类组成、区系地理成分、地区之间苔藓植物区系的比较等方面对该区苔藓植物区系进行了分析.结果表明:丛藓科Pottiaceae、真藓科Bryaceae、灰藓科Hypnaceae等旱生藓类在保护区占有优势地位,真藓属Bryum、匐灯藓属Plagiomnium、紫萼藓属Grimmia为保护区的主要优势属,本区区系地理成分主要是以北温带成分为主(50.83%),其次为世界广布成分(16.02%)和东亚成分(14.36%).本区与赛罕乌拉自然保护区和七老图山的属、种相似性系数高,体现了蒙新区、东北区和华北区交汇过渡地带的特点.The bryoflora in Wulanba-Shipenggou Nature Reserve of Inner Mongolia were prelim- inarily studied by field investigations and literature references. The results shows that there are 181 species,86 genera and 39 families （including 1 subspecies,5 varieties）. Among them,six species are new records for Inner Mongolia, four species are firstly recorded in China,which are Grimmia lon- girostris Hook. ,Schistidiurn lancifolium （Kindb.）Blom. ,Bryum laevifilum Syed. ,and Homomal- lium adnatum （Hedw.）Broth.. The species composition shows that most species in Wulanba- Shipenggou Nature Reserve are drought tolerant mosses,Analysis of the floristic elements based on the genera and species shows that the temperate floristic elements are predominant in Wulanba-- Shipenggou Nature Reserve. Analysis of bryoflora similarity among. Analysis of bryoflora similarity among Wulanba-Shipenggou Nature Reserve and other 8 regions in China shows that the bryoflora of Wulanba-Shipenggou Nature Reserve is similar to Saihanwula Nature Reserve and Qilaotu Moun- tain. The high bryoflora similarity shows that Wulanba-Shipenggou Nature Reserve should be the transition region connecting the Mengxin area,the Northeast area and the North China region.

关 键 词：内蒙古 乌兰坝-石棚沟自然保护区 苔藓植物 区系 

分 类 号：Q949.35[生物学—植物学]