Earth & Environmental Sciences
acid rain
22%
aerosol
7%
atmosphere
8%
atmospheric carbon dioxide
7%
blue carbon
9%
carbon
15%
carbon balance
14%
carbon budget
6%
carbon flux
8%
cold
8%
dissolved inorganic nitrogen
7%
dissolved organic carbon
31%
ditch
14%
drainage
12%
ecosystem
25%
effect
7%
fen
21%
flux measurement
6%
freezing
6%
gas
6%
greenhouse gas
25%
greenhouse gas emissions
15%
landfill
15%
litter
9%
loss
14%
macropore
6%
marsh
7%
mesocosm
13%
methane
77%
native species
9%
nitrous oxide
8%
organic carbon
10%
peat
41%
peatland
70%
plant species
8%
plantation
12%
soil
10%
Southeast Asia
6%
spectroscopy
6%
starvation
7%
stem
35%
sulfate
21%
temperature
8%
total organic carbon
6%
trace gas
8%
volatile organic compound
6%
volcanic eruption
13%
water table
11%
wet season
7%
wetland
39%
Agriculture & Biology
acid rain
16%
alluvial soils
8%
Alnus glutinosa
9%
Amoeba
6%
blue carbon
11%
bogs
9%
carbon
12%
carbon dioxide
11%
cold storage
6%
cropland
7%
dissolved organic carbon
22%
ecosystems
23%
Elaeis guineensis
6%
empirical models
5%
fens
23%
forest plantations
7%
forest types
8%
gases
6%
global carbon budget
8%
global warming potential
6%
greenhouse gas emissions
8%
greenhouse gases
10%
high water table
5%
lowland forests
16%
macropores
8%
meadow soils
9%
methane
100%
methane production
25%
nitrous oxide
6%
organic carbon
12%
particulate organic carbon
5%
peat
35%
peatlands
45%
plantations
6%
saplings
6%
soil
7%
soil respiration
7%
soil temperature
6%
starvation
5%
stems
17%
sulfates
15%
temperature
5%
total organic carbon
9%
tropical forests
8%
upland soils
8%
volatile organic compounds
6%
water table
17%
wet season
7%
wetlands
25%