英文關鍵字
birds
breed
decades
ecosystem
edge
erosion
forest
growing
important
maintaining
north
prevent
river
riverbanks
role
shelter
small
soil
species
strength
sumatra
sustainability
tree
tropical
英文關鍵字
birds
breed
decades
ecosystem
edge
erosion
forest
growing
important
maintaining
north
prevent
river
riverbanks
role
shelter
small
soil
species
strength
sumatra
sustainability
tree
tropical