1. College of Economics and Management, Nanjing Forestry University, Nanjing 210037, China
2. State Key Laboratory of Urban & Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
3. Research Center for Economics and Trade in Forest Products of the State Forestry Administration, Nanjing 210037, China
4. Ministry of Natural Resources and Forestry, Ontario Forest Research Institute, 1235 Queen Street East, Sault Ste. Marie, ON P6A 2E5, Canada
5. CESAM and Department of Environment and Planning, University of Aveiro, 3810−193 Aveiro, Portugal