SHI Jian-hua1,MENG Guang-tao2,LI Pin-rong2,HE Li-ping2,QIAN Xiao-qing3,WANG Cheng3(1.Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming 650093,2.Yunnan Academy of Forestry,Kunming 650204,3.Forestry Bureau of Fuyuan,Fuyuan,Yunnan 655500)