新疆额尔齐斯河大峡谷岩面生地衣群落数量分类  

Quantitative classification of saxicolous lichen communities in Ergis River gorge,Xinjiang

作　　者：姜泽群[1] 张婷[1] 阿不都拉.阿巴斯[1] 艾尼瓦尔.吐米尔[1] 

机构地区：[1]新疆大学生命科学与技术学院,乌鲁木齐830046

出　　处：《干旱区资源与环境》2014年第8期167-171,共5页Journal of Arid Land Resources and Environment

基　　金：国家自然科学基金项目(31160005)资助

摘　　要：以地衣种盖度为指标,应用双向指示种分析(TWINSPAN)和除趋势对应分析(DCA)对额尔齐斯河大峡谷不同类型20个样点的岩面生地衣群落进行了数量分类。结果表明:额尔齐斯河大峡谷岩面生地衣共有32种,两个变种,隶属于4目、10科、16属。它们组成5个群落类型,各群落内的地衣种之间具有相似的生境。同时发现在额尔齐斯河大峡谷森林生态系统中岩面生地衣群落的分布与海拔高度、岩石的种类、森林郁闭度等生境因子具有密切的关系。Saxicolous lichens communities in Ergis river gorge in Xinjiang were quantitative classified based on the cover of saxicolous lichens species in different sampling sites. The two - way indicator species analysis （TWINSPAN） and detrended correspondence analysis （DCA） methods were applied in this study for the commu- nities classification. The result shows that 32 saxicolous lichen species and two varieties belonging to 16 genera in 10 families of 4 orders were found in this area. According to the results of quantitative classification analysis and universal characteristics of habitat, the saxicolous lichen communities in this forest ecosystem can be classified into five different types. At the same time we found that the saxieolous lichen species diversity in different communities change along with the altitude, rock size, physical and chemical characteristics of rock surface and canopy density of vegetation.

关 键 词：岩面生地衣 TWINSPAN 数量分类 额尔齐斯河大峡谷 

分 类 号：Q948.15[生物学—植物学]