Earth & Environmental Sciences
permafrost
100%
tundra
59%
warming
47%
soil
38%
carbon
36%
ecosystem
30%
soil carbon
24%
decomposition
18%
respiration
18%
organic carbon
17%
productivity
17%
thawing
16%
loss
14%
climate
14%
thermokarst
14%
permafrost ecosystem
11%
climate change
11%
tundra soil
11%
boreal forest
11%
nitrogen
10%
organic soil
10%
active layer
9%
soil temperature
9%
degradation
8%
eddy covariance
8%
montane forest
8%
vulnerability
8%
incubation
8%
carbon stock
7%
plant community
7%
growing season
7%
microbial community
7%
carbon cycle
7%
methane
7%
winter
7%
atmosphere
6%
temperature
6%
soil organic matter
6%
vegetation
6%
mineral
6%
carbon emission
6%
nutrient cycling
6%
carbon storage
6%
biomass
6%
fungus
5%
rate
5%
soil nitrogen
5%
soil respiration
5%
stable isotope
5%
carbon dioxide
5%
Agriculture & Biology
permafrost
98%
tundra
64%
ecosystems
32%
soil
28%
carbon
28%
Picea mariana
19%
degradation
19%
ecosystem respiration
16%
soil carbon
16%
soil organic carbon
14%
Arctic region
13%
climate change
11%
soil organic matter
11%
tundra soils
11%
boreal forests
11%
thawing
10%
eddy covariance
10%
net primary productivity
10%
nitrogen
10%
climate
9%
carbon sinks
9%
soil heating
9%
gross primary productivity
9%
soil temperature
9%
organic soils
9%
microbial communities
8%
carbon radioisotopes
8%
montane forests
8%
global warming
7%
carbon dioxide
7%
plant communities
7%
temperature
7%
methane production
7%
frigid soils
7%
growing season
6%
cell respiration
6%
carbon cycle
6%
vegetation
6%
winter
6%
methane
6%
biogeochemical cycles
6%
highlands
6%
mineral soils
6%
subsidence
5%
water table
5%
uncertainty
5%
stable isotopes
5%
