英文關鍵字
aerial
view
area
biodiversity
carbon
dioxide
clearing
climate
change
conservation
cut
cutting
deforestation
destruction
earth
ecology
ecosystem
energy
environment
environmental
damage
estonia
europe
exploitation
felled
firewood
forest
global
warming
green
harvester
industry
landscape
log
logging
lumber
material
natural
nature
park
pine
protection
rain
resource
road
save
timber
timberland
tree
trunk
wood