干旱区研究
3S-Based Extraction of Spatial Distribution of Picea schrenkiana var. tianschanica in History in the Tianshan Mountains
XING Fei, LI Hu, LI Jian-gui, ZHANG Nai-ming, LIU Yu-feng, CHEN Dong-hua
Arid Zone Research . 2019, (2): 451 -458 .  DOI: 10.13866/j.azr.2019.02.22