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Alaska
6
boreal
borehole
6
permafrost
tundra
6
vegetation
4
lichen
2
plant
2
tree
2
understory
2
DBH
1
aboveground
1
aboveground biomass
1
active layer
1
biomass
1
bulk density
1
canopy cover
1
carbon
1
densiometer
1
isotopes
1
nitrogen
1
percent cover
1
soil
1
soil moisture
1
woody debris
1
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