Subject
forest decline
17
air pollution
3
mycorrhiza
3
soil acidity
2
soil microbiology
2
soil pollution
2
soil science
2
acid deposition
1
acid rain
1
air pollution control
1
atmospheric deposition
1
atmospheric transport
1
calcification
1
calcium
1
chemical analysis
1
chlorophyll
1
ecosystem
1
environmental biology
1
environmental chemistry
1
environmental compatibility
1
environmental impact assessment
1
environmental monitoring
1
environmental pollution
1
environmental program
1
environmental protection
1
environmental research
1
gas chromatography
1
mass spectroscopy
1
mineral metabolism
1
optical method
1
oxygen effect
1
phytopathology
1
plant disease
1
plant growth
1
plant physiology
1
plant virus
1
polyamine
1
polychlorinated biphenyl
1
polycyclic aromatic hydrocarbon (PAH )
1
scanning
1
soil biology
1
soil chemistry
1
soil protection
1
soil surface
1
soil water
1
spruce
1
transport phenomena
1