【Author】
ZHOU Yu-mei1, YANG Chuan-ping2, WANG Shu-juan3, WU Yue-liang4, WANG Wen-zhang2, HAN Shi-jie1 (1Institute of Applied Ecology, Chinese Academy of Sciencses. Shenyang 110016, P.R. China) (2Northeast Forestry Univesity, Harbin 150040, P.R. China) (3Collelge o