Agriculture & Biology
exchangeable cations
100%
clearcutting
91%
hardwood forests
88%
soil organic matter
65%
spodic horizons
55%
cation exchange capacity
50%
minerals
31%
logging
30%
E horizons
24%
Spodosols
23%
organic horizons
21%
experimental forests
19%
soil horizons
19%
nutrient retention
18%
drainage water
18%
nutrients
16%
soil chemical properties
16%
biogeochemical cycles
15%
nutrient availability
14%
leaching
13%
soil fertility
12%
ecosystems
10%
soil
7%
Earth & Environmental Sciences
clearcutting
82%
dietary mineral
72%
cation
58%
cation exchange capacity
54%
organic matter
46%
Spodosol
25%
drainage water
19%
soil horizon
19%
nutrient availability
19%
brook
19%
nutrient cycling
19%
fertility
18%
soil organic matter
16%
chemical property
15%
soil
14%
leaching
13%
biomass
10%
ecosystem
10%
loss
9%