The Adapting Expression Of Bryophytes In Different Environmental Background Of Guizhou

Eight different environmental background areas of Guizhou, including Xishui and Chishui Danxia Landform, Kuankuoshui and Maolan karst Landform, Mt.Doupeng and Moon Normal Landform, Gaopo and Dapingqing marsh swamp, are selected to collecting and gathering Bryophytes specimens. More than 5000 specimens are identified. Based on analysis, the results are given as follows:The Bryophytes express the adapting by means of common dominate families or general and characteristics in different environmental background areas.Bryoxiphiaceae and Lophoziaceae are the characteristics in Danxia Landform.Blasiaceae, Fossombroniaceae and Cyathodiaceae are the restricted distributions families in Karst Landform. Meesiaceae, Scorpidiaceae and Dendrocerotaceae are the restricted distributions families in Normal Landform. Climaciaceae and Mastigophoraceae are the characteristics in marsh swamp regions.Jaccard similarity coefficient is analyzed and the result is “ Danxia landform>Normal Landform>karst Landform> marsh swamp”.The ? diversity index is analyzed and the result shows that the maximum indexes of Simpson and Shannon-Wiene is Mt. Doupeng, and the maximum Pielou index is Xishui.The species richness has a positive relationship with Humidiyt and rainfall,and negative correlative with duration of sunshine.The dominant communities are Leucobryum chlorophyllosum community and Conocephalum japonicum community in Danxia Landform, and the lithophytic community is on the dominant position. Thamnobryum alopecurum community and Himantocladium cyclophyllum community are the dominant communities in Karst Landform, and the xylophilous and lithophytic communities are on the dominant position. Bazzania albifolia community and Pallavicinia ambigua community are the dominant communities in Normal Landform, and xylophilous and lithophyticcommunities are on the dominant position. Sphagnum multifibrosum community and Calypogeia tosana community are the dominant communities in marsh swamp, and the indigenous community is on the dominant position.The Bryophytes express the adaption in different environmental background by some distinctive structures and physiological characteristics. The main structure in Danxia Lanform is drought-resistant type. Special gemma, dense shell structure and creeping stem are the keys to adapt Karst Landform. The Bryophytes adapt the different microenvironment by different morphology and structure. The water pores,lamella,central strand obviously present are the keys to adapting marsh swamp regions.