A bamboo forest is defined as a forest with at least 50% bamboo canopy cover. A mixed bamboo forest has between 15-50% bamboo canopy cover. The FAO defines forest as land over 0.5 hectares with trees over 5 meters tall and over 10% canopy cover, or trees expected to reach this. Under Kyoto, countries can define forest as land between 0.05-1 hectare with over 10-30% tree canopy cover of trees over 2-5 meters tall.