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SUN Xiaoling1,2;REN Bingzhong3;ZHAO Zhuo2;GAO Changqi4;ZHOU Guangping5
1School of Forestry,Northeast Forestry University,Harbin 150040, China;2School of Life Sciences,Jilin Normal University,Siping 136000, China;3School of Life Sciences,Northeast Normal University,Changchun 130024, China;4Jilin Provincial Forestry Academy,Changchun 130033, China;5Jingouling Forestry Farm,Wangqing Forestry Bureau,Jilin Province,Wangqing 133200, China