Earth & Environmental Sciences
estuary
100%
ammonium
51%
nitrogen
50%
nitrification
40%
carbon
40%
dissolved inorganic nitrogen
37%
phytoplankton
36%
nutrient
24%
hydrodynamics
23%
long-term change
21%
macrophyte
20%
nitrogen cycle
20%
incorporation
19%
dissolved organic carbon
19%
coastal zone
18%
eutrophication
18%
inhibitor
15%
stable isotope
14%
alga
14%
algal bloom
14%
Europe
13%
ecological modeling
13%
dissolved organic nitrogen
13%
budget
12%
tracer
12%
salinity
11%
primary production
11%
bacterium
10%
consumption
10%
denitrification
10%
urea
10%
meteorology
10%
rate
9%
incubation
9%
amino acid
9%
zooplankton
9%
particulate matter
8%
comparison
8%
organism
8%
recycling
7%
microorganism
7%
sedimentation
7%
ammonification
7%
substrate
6%
measuring
6%
carbon cycle
6%
functional group
6%
carbon isotope
6%
biodegradability
6%
summer
6%
flow velocity
6%
in situ
6%
estuarine environment
6%
isotopic fractionation
6%
respiration
6%
cooperation
5%
regeneration
5%
biogeochemical cycle
5%
waste water
5%
sea
5%
tributary
5%
detritus
5%
river
5%
Agriculture & Biology
estuaries
42%
dissolved inorganic nitrogen
33%
nitrogen cycle
26%
Northern European region
23%
ammonium
19%
nitrification
18%
carbon 14
14%
stable isotopes
10%
uncertainty
10%
recycling
9%
nitrates
8%
salinity
8%
ammonification
7%
oxidation
7%
oxygen
7%
microorganisms
6%
carbon
6%
denitrification
6%
primary productivity
6%
nitrogen
5%
Belgium
5%
methodology
5%
mineralization
5%