karst secondary natural forest
natural secondary forest
Natural secondary forests
natural secondary Pinus tabulaeformis forest
Natural secondary stand
oak natural secondary forest
secondary natural forest
secondary natural Pinus tabulaeformis forest
the secondary vegetation
natural secondary Pinus tablaeformis forest
degeneration of natural vegetation
map of potential natural vegetation
natural vegetation
天然植物
天然植被
自然植被
天然植披
植物生活型
自然恢复
natural vegetation cover
natural vegetation distribution
natural vegetation management
natural vegetation restoration