干旱区研究
Effects of Competition on Tree Height Growth of Sand-fixation Plantations of Pinus sylvestris var.mongolica in Northwest Liaoning Province
LEI Ze-yong, ZHOU Yan-ping, ZHAO Guo-jun, ZHANG Yan-song, YU De-liang
Arid Zone Research . 2018, (1): 144 -149 .  DOI: 10.13866/j.azr.2018.01.18