Topic
Life Science
33
arctic tundra
14
climate-change
13
vegetation
12
tundra
10
responses
9
Arctic
8
Arctic tundra
8
tussock tundra
7
Betula nana
6
alaska
6
biomass
5
exchange
5
growth
5
Tundra
4
co2 flux
4
dynamics
4
ecosystems
4
northern alaska
4
permafrost
4
shrub expansion
4
Siberia
3
boreal forest
3
carbon storage
3
carbon-dioxide
3
cassiope-tetragona
3
co2 exchange
3
environmental-change
3
global change
3
growing-season
3
leaf-area index
3
ndvi
3
productivity
3
selection
3
simulated environmental-change
3
species composition
3
Arctic greening
2
Eriophorum vaginatum
2
NDVI
2
Permafrost degradation
2
alaskan arctic tundra
2
arctic ecosystems
2
balance
2
biodiversity
2
birds
2
carbon
2
climate change
2
community
2
competition
2
current knowledge
2
more ...