干旱区研究
Effects of extreme drought and nitrogen addition on species diversity,leaf trait, and productivity in a semiarid sandy grassland
SUN Yi-mei, TIAN Qing, LYU Peng, GUO Ai-xia, ZHANG Sen-xi, ZUO Xiao-an
Arid Zone Research . 2020, (6): 1569 -1579 .  DOI: 10.13866/j.azr.2020.06.23