Agriculture & Biology
lowland forests
100%
tropical forests
86%
nitrification
48%
nitrogen
47%
soil
41%
soil ridges
35%
landscape position
31%
geomorphology
31%
topographic slope
30%
particulate organic matter
28%
soil minerals
26%
carbon sinks
24%
biogeochemical cycles
22%
vegetation types
22%
spatial variation
22%
Costa Rica
21%
topography
21%
isotopes
20%
soil organic matter
19%
ecosystems
15%
phosphorus
15%
temperature
8%
Earth & Environmental Sciences
soil nitrogen
94%
tropical forest
81%
soil
34%
hillslope
29%
nitrification
24%
loss
21%
erosion
18%
nitrogen
16%
slope angle
15%
particulate organic matter
15%
nutrient cycling
15%
carbon stock
14%
vegetation type
13%
geomorphology
13%
soil organic matter
12%
mass balance
12%
spatial variation
11%
isotope
10%
topography
9%
phosphorus
9%
rate
8%
ecosystem
8%
mineral
7%
effect
6%
temperature
5%
analysis
3%
Medicine & Life Sciences
Forests
97%
Soil
88%
Nitrogen
80%
Nitrification
42%
Costa Rica
17%
Particulate Matter
14%
Ecosystem
12%
Isotopes
12%
Phosphorus
12%
Carbon
11%
Minerals
11%
Nutrients
9%
Temperature
8%
Maintenance
8%