The Biodiversity Of Bryophytes In Sumu Mountain Forest Park

Sumu Mountain is located in the south of xinghe county,ulanqab city,Inner Mongolia,it belongs to yanshan mountain in northern,more than an average altitude of 2000 m,west and xinfeng city,adjacent to the south and Shanxi Province county adjacent to the town of Yang is high,the day east border with hebei province huaian,xinghe county in the northern of ulanchap is desertification serious areas,however,Sumu Mountain terrain,physiognomy subject for low mountains,hills,ravines aspect,has the zhongshan mountain lakes and wetlands,the mountains around cliff.The natural topography and landform of Sumu mountain forest park and the dense forests,shrubs and grassland vegetation are the natural green barriers to prevent sand storms and cold currents from invading north China.This study on the bryophyte flora,altitude and community of the Sumu Mountain provides some theoretical guidance for the rational utilization and protection of the vegetation and environmental protection and improvement of the Sumu Mountain,and is of great significance for the protection of the bryophyte diversity in the study area.Based on the investigation and floristic analysis of bryophyte diversity in Sumu mountain forest park,the following conclusions are drawn:(1)There are 27 families,61 genera and 149 species(including units below species)of bryophytes in Sumu Mountain,Inner Mongolia,including 14 species of liverworts in 9 genera and 7 families.Mosses 20 families 52 genera 135 species.The total families,genera and species of bryophytes in hematoxylins mountain accounted for 42.86%,33.15% and 29.16% of the total families,genera and species of bryophytes in Inner Mongolia,respectively.There are six dominant families of bryophytes in hematoxyline,namely Pottiaceae of Pottiaceae,Hypnaceae of Hypnaceae,Amblystegiaceae of bryophyllaceae,Brachytheciaceae of Brachytheciaceae,Bryaceae of eubryaceae and Mniaceae of tittlemaceae,and the proportion is sufficient to explain their advantages.There are 8 dominant genera,and the emergence of Didymodon Hedw,Bryum Eubryum,Grimmia,Hypnum,Mnium,Encalypta,Brachythecium,Amblystegium,Brachythecium and Amblystegium,respectively,shows that the living environment of bryophytes in mt.Hematophyllum is closely related to drought tolerance and humidity.(2)The bryophytes of Sumu mountain have 7 floristic geographical components,of which the main floristic component of Sumu mountain is the north temperate zone.The world wide component ranks second;East Asia ranks third;The geographical composition of the remaining 4 fauna is very small.There are a total of 103 species of temperate components(north temperate components,old world temperate components,and temperate Asian components)in Sumu mountain,accounting for 69.13% of the total number of mosses,indicating that the bryophytes in Sumu mountain are mainly composed of temperate components.The proportion of the east Asian component indicates that hematokan has less east Asian color.This paper USES kind of similarity coefficient,advantage of methods such as comparison,the floristic geographic element compare wood with five other mountain mountain,the mountain and daqingshan moss plants of Sumu mountain highest similarity coefficient,show recently,genetic relationship,and the genetic relationship of helan mountain in the second,third and the genetic relationship of seven old figure hill,wood mountain and the greater hinggan mountains in southern and northern yanshan relations far away.The altitude of Sumu Mountain is divided into four levels.The bryophytes of hematoxylin are divided into 6 vegetation types,namely,white birch forest and five-stamen willow shrub,Mongolian stiletto chrysanthemum and tuzhuang stiletto chrysanthemum shrub,golden dew plum and silver dew plum shrub,north China larch and white birch forest and rose rose,white birch forest and raspberry,and ice valley.The dominant species of bryophytes are different in different layers according to their vegetation type or stratification.(3)The bryophytes in mt.Hematophyllum were divided into 6 habitats,which were in the order of dry soil,wet soil,wood,aquatic,wet stone and dry stone.The shannon-wiener index values were successively decreasing,and the Pielous evenness index remained between 0.91 and 0.94.The amplitude fluctuation is small,indicating that the individual uniformity difference is very small.