Analysis of Bryophytes Flora and Bryophytes Community Structure in Ulan River Nature Reserve,Inner Mongolia
Based on the collection of specimen and community investigation,28 families,60 gene-ras and 106 species(including varieties)of bryophytes were found in Ulan River Nature Reserve of Inner Mongolia.Among them,8 families and 6 genera contained a large number of species.These species were composed of 4 kinds of growth forms:cormus hepaticae(5 species),thallus hepaticae(8 species),acrocarpi-muscorum(53 species)and pleurocarpi-muscorum(40 species).The number of species in 10 kinds of vegetations ranged from 3 to 52,with significantly higher numbers in Betu-la dahurica forest(52 species),under the forest and brush of the gully(49 species)and Betula platyphylla forest(46 species).Species of different growth types were distributed in 3-14 types of habitats,among which 4 kinds of habitats had more species:the ground under the forest and brush of gully(44 species),the trunk base of Betula platy phylla forest(44 species),the rock surface of Betula dahurica forest(37 species),and the ground of Betula dahurica forest(32 species).Fifty-one dominant species were identified,9 species of which were widely distributed.A total of 35 kinds of microhabitats communities were classified,which were composed of 1-3 kinds of synusia and 8 combined types of 4 kinds of growth form,with acrocarpi-muscorum community and pleurocarpi-muscorum+acrocarpi-muscorum community being more abundant.The composition,arrangement order,individual size of dominant species and synusia composition varied with water conditions,veg-etation and substrate types.
Ulan River Nature Reserveflora compositionspecies distributionmicrohabitat community structurebryophytes
万方数据
维普
