Elevation gradient effects on grassland species diversity and phylogenetic in the two-river source forest region of the Altai Mountains, Xinjiang, China - Che, Jing; Ye, Mao; He, Qingzhi; Zeng, Guoyan; Li, Miaomiao; Chen, Weilong; Pan, Xiaoting; Qian, Jiaorong; Lv, Yexin (Frontiers in Plant Science, 2025)