Agriculture & Biology
tropical soils
100%
carbon sequestration
87%
forest soils
86%
soil organic carbon
85%
deciduous forests
85%
tropical forests
79%
iron
55%
soil organic matter
19%
soil respiration
16%
nuclear magnetic resonance spectroscopy
12%
age of soil
11%
Acrisols
11%
iron oxides
9%
carbon sinks
8%
Ghana
7%
topsoil
7%
mineralization
6%
oxides
6%
carbon dioxide
5%
soil
3%
Earth & Environmental Sciences
tropical soil
93%
deciduous forest
81%
forest soil
75%
tropical forest
74%
carbon sequestration
69%
iron
49%
organic carbon
49%
soil
31%
turnover
15%
soil respiration
13%
organic matter
11%
nuclear magnetic resonance
10%
Acrisol
8%
carbon stock
6%
solid state
5%
topsoil
5%
iron oxide
5%
spectroscopy
4%
dating
4%
oxide
4%
mineralization
4%
rate
3%