Subject
Abandoned mined lands reclamation
1
Age
1
Alnus incana
1
Analysis
3
Application
1
Ash
1
Ash (Plants)
1
Aspen
2
Balsam
1
Balsam fir
23
Balsam fir sawfly
1
Bibliography
1
Biomass
1
Birch
1
Black spruce
17
Blueberries
1
Branching (Botany)
1
Breeding
2
Browsing (Animal behavior)
1
Carbon cycle
1
Cherry
1
Christmas tree growing
3
Christmas tree industry
1
Christmas trees
1
Clearcutting
2
Clearing of land
2
Climate change
1
Climatic changes
1
Climatic factors
2
Colorado spruce
1
Computer programs
2
Computer simulation
3
Cones (Botany)
1
Conifers
23
Crowns (Botany)
1
Cutting
1
Deficiency diseases in plants
1
Defoliation
1
Dendrochronology
1
Density
1
Development
4
Diseases and pests
2
Economic aspects
2
Effect of soil moisture on
1
Effect of solar radiation on
1
Effect of stress on
1
Engelmann spruce
1
Environmental aspects
6
Environmental impacts
1
Environmental monitoring
1
more ...