Subject
forest
agriculture
3
ecology
3
climatic change
2
coastal region
2
ecosystem
2
forestry
2
sustainability
2
sustainable agriculture
2
tree
2
agroforestry
1
agronomy
1
atmospheric deposition
1
biotope
1
carbon dioxide
1
carbon dioxide acceptor process
1
cartography
1
coal mining
1
contaminated land
1
crop
1
cultivated plant
1
desalination
1
energy storage
1
environmental pollution
1
fertilization
1
forest decline
1
fuel
1
future aspect
1
genetics
1
global aspect
1
global change
1
history
1
human ecology
1
interaction
1
ion diffusion
1
landscape
1
management
1
mathematical model
1
planning
1
policy
1
population
1
practical analysis
1
product
1
rain
1
regional geology
1
rhizosphere
1
sequestration
1
soil
1
statistics
1
storage
1
more ...