68
Table 5.1 (continued)
Target
Instrumentation & needs
Notes
References
F. H
2 distributions
Integrated rate
estimates
Gas chromatograph or reduced
gas analyzer
Easy to measure, but multiple
sources and sinks
Moore et al. (2009, 2018)
and Wilson et al. (2021)
6. Modeling approaches
A. Prognostic
Integrated rate
estimates
Nutrient and N
2 fixation
databases
Predictive estimates based on
coupled physiological &
mechanistic equations
Wang et al. (2019) and
Weber and Deutsch (2014)
B. Inverse
Integrated rate
estimates
Nutrient and N
2 fixation
databases
Estimates derived from
empirical field estimates
Wang et al. (2019)
C. Trait modeling of species
Distribution of size
classes of
diazotrophs
Physiological parameters for
diazotrophs, including growth,
light & nutrient uptake
characteristics
Dutkiewicz et al. (2014)
D. Physiological
Cell level processes
and controls
Detailed rates of key processes
and pools
Inomura et al. (2018,
2019)
5 Measurements of Organism Abundances and Activities