Earth & Environmental Sciences
atmosphere
6%
carbon
5%
carbon stock
88%
ecosystem
6%
enzyme activity
10%
global change
10%
leaching
7%
litter
77%
loss
10%
microbial activity
20%
nitrogen
49%
nutrient
13%
respiration
9%
soil
26%
soil carbon
84%
soil process
12%
soil profile
9%
stoichiometry
11%
trend
5%
tundra
11%
tundra soil
15%
turnover
75%
vegetation
6%
vulnerability
8%
warming
64%
Agriculture & Biology
carbon
9%
carbon sinks
99%
ecosystems
10%
enzyme activity
9%
extracellular enzymes
16%
global change
16%
leaching
13%
microbial activity
28%
nitrogen
48%
nutrients
16%
soil
41%
soil carbon
100%
soil profiles
15%
soil sampling
12%
stoichiometry
15%
tundra
17%
tundra soils
24%
vegetation
10%
Chemical Compounds
Amount
3%
Carbon Atom
38%
Ecosystem
10%
Enzyme Activity
7%
Leaching
8%
Nitrogen
49%
Nutrient
19%
Reaction Stoichiometry
7%
Soil
70%
Tundra
37%