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Forest Sciences
9
Vegetation types
boreal forests
6
Angiospermae
4
Angiosperms
4
Coniferopsida: Gymnospermae
4
Dicots
4
Gymnosperms
4
Plantae
4
Plants
4
Salicaceae: Dicotyledones
4
Spermatophyta
4
Spermatophytes
4
Vascular Plants
4
taiga
4
trees
4
Betulaceae: Dicotyledones
3
nutrients
3
Alaska
2
Biomass production
2
Picea Mariana
2
Populus Balsamifera
2
Populus Tremuloides
2
Soil physics
2
Soil types ecological
2
Trees
2
USA
2
cold zones
2
forest soils
2
nitrogen
2
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