http://reply.papertrans.cn/2/101/10030/10030-31.png
Submitted on: 11 December 2014.
Revised on: 23 March 2015.
Accepted on: 14 May 2015.
___________________FORESTRY CHRONICLE---CANADIAN INST FORESTRY
http://reply.papertrans.cn/2/101/10030/10030-33.png
http://reply.papertrans.cn/2/101/10030/10030-34.png
http://reply.papertrans.cn/2/101/10030/10030-35.png
http://reply.papertrans.cn/2/101/10030/10030-36.png