Agriculture & Biology
tundra
62%
carbon sinks
58%
ecosystems
36%
phosphorus
35%
nitrogen
28%
mosses and liverworts
23%
carbon sequestration
18%
organic soils
18%
Arctic region
16%
soil temperature regimes
13%
permafrost
12%
soil heating
12%
degradation
9%
soil carbon
9%
global warming
8%
soil
8%
soil organic matter
7%
shrubs
6%
vegetation
5%
carbon
5%
Earth & Environmental Sciences
tundra
52%
carbon stock
52%
phosphorus
34%
nitrogen
28%
ecosystem
28%
moss
25%
organic soil
16%
soil layer
15%
warming
12%
decomposition
11%
soil
10%
nutrient enrichment
9%
thermal regime
9%
carbon storage
8%
soil carbon
8%
permafrost
7%
carbon sequestration
7%
shrub
7%
human activity
6%
productivity
5%
organic matter
5%
vegetation
4%
carbon
4%
climate
4%
loss
4%
Chemical Compounds
Tundra
100%
Ecosystem
57%
Phosphorus(.)
40%
Soil
35%
Nitrogen
29%
Carbon Atom
22%
Decomposition
7%
Organic Matter
6%
Nutrient
6%