Earth & Environmental Sciences
soil carbon
84%
carbon sequestration
76%
Europe
56%
Kyoto Protocol
49%
cropland management
48%
emission reduction
40%
carbon sink
31%
carbon
31%
crop
29%
carbon storage
29%
carbon emission
27%
mitigation
21%
accounting system
20%
organic farming
19%
set-aside
18%
land use
18%
zero tillage
17%
rooting
16%
agricultural management
16%
revegetation
16%
atmosphere
16%
carbon budget
16%
energy technology
16%
arable land
15%
bioenergy
15%
cereal
14%
accounting
14%
climate
14%
trace gas
14%
compost
14%
straw
13%
land management
13%
forest management
13%
manure
13%
woodland
13%
sewage sludge
13%
European Union
12%
grazing
12%
soil
11%
grassland
11%
socioeconomics
11%
raw material
11%
irrigation
10%
sustainability
10%
policy
8%
economics
7%
land
7%
Agriculture & Biology
cropland
100%
carbon sequestration
95%
soil carbon
45%
carbon
24%
carbon sinks
18%
protocols
16%
land use
14%
climate
11%
carbon dioxide
11%
manure amendments
11%
global carbon budget
10%
grazing lands
10%
carbon footprint
10%
environmental economics
9%
agricultural management
9%
reduced tillage
9%
land management
9%
land restoration
9%
sewage sludge
9%
arable soils
8%
forest management
8%
energy crops
8%
ecosystem services
8%
crops
7%
European Union
7%
organic production
7%
socioeconomics
7%
no-tillage
7%
woodlands
7%
composts
7%
rooting
7%
straw
6%
grasslands
6%
raw materials
6%
irrigation
5%
gases
5%
energy
4%
soil
3%