QUANTITATIVE CLASSIFICATION AND ORDINATION ANALYSIS ON BRYOPHYTE VEGETATION IN BOGDA MOUNTAIN,XINJIANG
新疆博格达山地面生苔藓植被的数量分类与排序研究

Quantitative classification(TWINSPAN) and ordination (DCA) methods were used to study the distribution patterns of 60 species of bryophytes occurring in 60 sites in Bogda Mountain, Xinjiang. TWINSPAN results showed that the bryophyte communities of Bogda Mountain could be divided into 6 groups, which are distributed in mountain desert, mountain grass_shrub belt, mountain river bank forest, mountain conifer forest, subalpine and alpine meadow and alpine stone belt respectively. These types can be named as follows: Cratoneuron_Bryum community, Barbula_Tortula community, Mnium_Leskeella community, Distichium_Mnium community, Tortula_Schistidium community, Barbula_Grimmia community and so on. DCA results were consistent with TWINSPAN results, and showed species distribution patterns correlated with major environmental variables of soil moisture and rainfall.