Affiliation: | CHAI Yubo1 LIU Huanrong1 LIU Junliang1 LI Longzhe2 TANG Deguo3 1.Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,P.R.China 2. Construction Bureau of Yanbian Korean Autonomous Prefecture,Yanji 133000,P.R.China 3. Forestry Bureau of Wangqing County,Wangqing 133200,P.R.China |