Agriculture & Biology
free air carbon dioxide enrichment
92%
temperate soils
91%
grassland soils
81%
carbon dioxide
45%
carbon
38%
nitrogen
34%
soil carbon
31%
Trifolium repens
28%
Lolium perenne
27%
soil
16%
disturbed soils
9%
net primary productivity
8%
carbon sequestration
7%
soil organic carbon
7%
carbon nitrogen ratio
6%
mineralization
6%
soil organic matter
6%
grasslands
5%
degradation
3%
Earth & Environmental Sciences
carbon dioxide enrichment
100%
grassland soil
74%
nitrogen
34%
exposure
33%
carbon
33%
air
31%
soil
22%
soil carbon
19%
plant species
17%
net primary production
7%
particle
6%
soil organic matter
6%
carbon sequestration
6%
incubation
5%
grassland
5%
experiment
5%
organic carbon
5%
mineralization
4%
decomposition
4%
effect
3%
Medicine & Life Sciences
Grassland
84%
Soil
63%
Carbon Dioxide
61%
Carbon
57%
Air
47%
Nitrogen
37%
Trifolium
27%
Fertilization
13%
Carbon Sequestration
9%
Lolium
6%