Agriculture & Biology
soil classification
100%
soil carbon
76%
carbon sinks
76%
boreal forests
75%
forest soils
73%
drainage
63%
organic soils
48%
illuviation
42%
eluviation
41%
sesquioxides
35%
Regosols
35%
Gleysols
34%
climate
33%
B horizons
32%
soil
32%
Podzols
31%
soil formation
31%
site index
30%
soil surveys
30%
humification
30%
deterministic models
29%
forest inventory
29%
soil water regimes
29%
national forests
29%
temperate forests
24%
soil organic carbon
24%
topography
22%
anaerobic conditions
21%
vegetation
15%
carbon
13%
degradation
12%
Earth & Environmental Sciences
soil drainage
87%
soil classification
79%
carbon stock
68%
soil carbon
64%
boreal forest
64%
forest soil
63%
organic soil
33%
soil
27%
Regosol
23%
drainage
23%
Gleysol
23%
soil moisture regime
23%
site index
21%
Podzol
20%
humification
19%
soil survey
19%
soil formation
18%
forest inventory
17%
temperate forest
17%
climate
17%
anoxic conditions
15%
organic carbon
12%
topography
11%
decomposition
11%
productivity
10%
vegetation
9%
carbon
8%
effect
3%