Subject
forest decline
7
forestry
5
climatology
4
ecosystem
4
pollution control
4
tree
4
plant physiology
3
terpene
2
atmospheric deposition
1
coastal region
1
crop
1
environmental law
1
environmental policy
1
environmental pollution
1
environmental protection
1
fertilizer
1
forest
1
nutrition
1
pesticide metabolism
1
pesticide residue
1
plant protection
1
risk assessment
1
soil chemistry
1
sustainable use
1
tree growth
1