新疆额尔齐斯河大峡谷与不同地区地衣区系的比较

Lichens Floristic Composition of Ergis River Gorge in Xinjiang

对新疆额尔齐斯河大峡谷地衣区系与国内7个不同地区的地衣区系成分进行了比较分析。结果表明:额尔齐斯河大峡谷地衣区系成分包括世界广布成分、环北极成分、温带成分、东亚成分和中国特有成分5种类型,其中,温带成分和环北极成分占绝对优势,这与该区地理位置、气候以及植被类型相符合。同时,该区地衣区系具有一定的东亚特色,但特有现象不明显。与国内其余7个地区地衣区系的数值分析表明,该区地衣区系与天山一号冰川的亲缘关系最近,与河北驼梁山的区系类型也较为相似,但河北驼梁山具有明显的亚热带区系特征,与哈纳斯国家级自然保护区、内蒙古赛罕乌拉国家级自然保护区、恰西雪岭云杉国家级自然保护区、重庆金佛山、武夷山的地衣区系关系较为疏远。

We compared the lichen floristic composition in seven different areas and Ergis River Gorge in Xinjiang. There are five types of lichens flora in this region including cosmopolitan element, circumpolar element, temperate zone elements, East Asia elements and endemic to China. Among them, temperate zone elements and circumpolar element are dominant. By the numerical classification, the lichens flora between the Ergis river gorge and Tianshan No. 1 glacier have very closely relation, and comparatively similarity with Tuoliang Mountain of Hebei, but the lichens flora of Tuoliang Mountain has obviously subtropical floristic characteristics. The relationship is relatively far between the Hanas national natural reserve, Saihanwula National Nature Reserve of Inner Mongolian, Qiaxi National Reserve of Yili, Jingfo Mountain of Chongqing and Wuyi Mountain.