Fungi were successfully isolated from locations labeled in green. Fungi could not be isolated from areas labeled in pink. The map was downloaded from“Map World of Public Platform of National Geographic Information of China (http://www.tianditu.com/). The south Tibet line: Xigaze, RB (Renbu), JZ (Jiangzhi, Ggangze), YZYC (Yangzhuoyongcuo, Langkazi,), QS (Qushui), Lhasa, Dazi, Mila (Mila Mountain, Mozhugongka), GBJD (Gongbujiangda), BSC (Basongcuo, Nyingchi), NYH (Niyang river, Nyingchi), LL (LuLang, Nyingchi), BGC (Brahmaputra grand canyon, Nyingchi). The Gansu corridor line: HY (Huangyuan, Qinghai), Datong (Datong, Qinghai), CHH (Chahanhe, Qinghai), MY (Menyuan, Qinghai), JYL (Jingyangling, Qinghai), Lanzhou (Yongdeng, Gansu), Jintai (Jintai, Gansu), Qilian (Qilian, Qinghai), Gonghe (Gonghe, Qinghai), Tianzhu (Tianzhu, Gansu), Wuwei (Wuwei, Gansu), YCH (Yongchang,Gansu), Zhangye (Zhangye, Gansu), Jiayuguan (Jiayuguan, Gansu), Yumen (Yumen, Gansu), Guazhou (Guazhou, Gansu), Dunhuang (Dunhuang, Gansu), YMG ((Yumenguan, Dunhuang, Gansu), Yadan (Dunhuang, Gansu).