1. The College of Ecology and Resource Engineering, Wuyi University, No. 16, Wuyi Avenue, Wuyishan City, Fujian 354300, P. R. China
2. The College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, Fujian 350002, P. R. China
3. The College of Material Engineering, Fujian Agriculture and Forestry University, 15 Shangxiadian Road, Fuzhou, Fujian 350002, P.R. China
4. The Department of Wood and Forest Sciences, Laval University, Quebec G1V 0A6, Canada