Landbrug og biologi
agricultural land
32%
agricultural soils
18%
animal manures
62%
arable soils
19%
buried soils
23%
carbon
10%
carbon sinks
100%
cattle production
20%
degradation
10%
Denmark
89%
fallow
17%
Germany
14%
grazing
13%
land use
80%
mineral fertilizers
17%
plows
40%
soil
25%
soil organic carbon
94%
soil organic matter
31%
soil surveys
24%
swine production
19%
Geo- og miljøvidenskab
agricultural land
19%
Bronze Age
18%
carbon
4%
carbon sequestration
7%
carbon stock
89%
cattle
8%
comparison
34%
decomposition
5%
fallow
9%
grazing
7%
inorganic fertilizer
11%
land use
55%
long-term trend
8%
manure
31%
organic carbon
64%
organic matter
11%
pig
8%
soil
35%
soil survey
10%