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SOIL TEMPERATURE
25
ACTIVE LAYER
24
CARBON DIOXIDE
16
SOIL GAS/AIR
16
PERMAFROST
15
SOIL MOISTURE/WATER CONTENT
12
THAW DEPTH
8
Alaska
2
Betula Betula nana
2
Betula nana
2
Biomarkers
2
Eriophorum Eriophorum vaginatum
2
Eriophorum vaginatum
2
Isotopes
2
Leaf Waxes
2
permafrost
2
thaw depth
1
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