1. Laboratory of Geo-Information Science and Remote Sensing, Wageningen University & Research, PO Box 47, 6700 AA Wageningen, The Netherlands
2. Soil, Water & Land Use, Wageningen University & Research, PO Box 47, 6700 AA Wageningen, The Netherlands
3. Department of Agriculture and Rural Development of Tuyen Quang Province, 108 Nguyen Van Cu, Minh Xuan, Tuyen Quang, Vietnam
4. Training and International Cooperation Division, Forest Inventory and Planning Institute, Thanh Tri district, Hanoi, Vietnam