Institute of Renewable Natural Resources, College of Forestry and Natural Resources, University of the Philippines Los Baños, College, Laguna 4031, Philippines
C. L. Tiburan Jr.
Institute of Renewable Natural Resources, College of Forestry and Natural Resources, University of the Philippines Los Baños, College, Laguna 4031, Philippines
I. Saizen
Laboratory of Regional Planning, Graduate School of Global Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan