Earth & Environmental Sciences
plankton
56%
stable isotope
50%
incubation
49%
fractionation
49%
nitrate
43%
nitrification
31%
isotope
25%
summer
24%
assimilation
22%
decoupling
18%
irradiance
16%
tracer
13%
seawater
12%
monoculture
10%
light intensity
9%
regeneration
7%
phytoplankton
6%
experiment
6%
effect
5%
consumption
5%
oxygen
5%
in situ
5%
coast
5%
nitrogen
5%
laboratory
4%
Engineering & Materials Science
Plankton
100%
Fractionation
78%
Nitrates
74%
Isotopes
72%
Nitrification
55%
Tracers
19%
Seawater
18%
Phytoplankton
14%
Coastal zones
9%
Nitrogen
7%
Oxygen
6%
Experiments
6%
Agriculture & Biology
isotope fractionation
84%
plankton
65%
stable isotopes
62%
nitrates
49%
nitrification
47%
summer
32%
isotopes
30%
tracer techniques
19%
seawater
17%
phytoplankton
10%
light intensity
8%
Canada
8%
coasts
7%
oxygen
6%
nitrogen
5%