Subject
agriculture
ecosystem
biodiversity
1
biogeochemical cycle
1
biosphere
1
carbon
1
carbon cycle
1
carbon dioxide cycle
1
climatic change
1
denitrification
1
ecology
1
environmental effect
1
fertilization
1
forest
1
forest decline
1
global change
1
global warming
1
nitrification
1
nitrogen
1
soil
1
soil biology
1
soil chemistry
1
soil pollution
1
soil protection
1
sustainable development
1