Landbrug og biologi
soil organic carbon
98%
organic carbon
93%
soil types
85%
agriculture
63%
Vertisols
25%
smectite
20%
kaolinite
18%
Ultisols
18%
soil separates
17%
total organic carbon
16%
carbon sinks
16%
soil
10%
small-scale farming
8%
tropical soils
8%
primary forests
8%
sieving
8%
land use change
8%
Ghana
7%
soil management
7%
farming systems
5%
corn
4%
Geo- og miljøvidenskab
soil type
80%
organic carbon
66%
agriculture
61%
soil
36%
Vertisol
18%
Ultisol
12%
smectite
9%
kaolinite
9%
primary forest
6%
tropical soil
5%
sieving
5%
soil management
5%
farming system
5%
carbon stock
5%
loss
5%
cropping practice
4%
land use change
4%
maize
4%
state of the art
4%
history
2%
Erhverv og økonomi
Soil
100%
Carbon
93%
Agriculture
64%
Land Use Change
6%
Farming Systems
5%
Maize
5%
Specific Factors
4%
Ghana
4%
Kemiske forbindelser
Organic Carbon
94%
Soil
73%
Samfundsvidenskab
agriculture
72%
predictive model
15%
land use
12%
Ghana
12%
history
6%
management
5%