Conceptualizing biogeochemical reactions with an Ohm's law analogy

Jinyun Tang, William J. Riley, Gianna L. Marschmann, Eoin L. Brodie
2021 Journal of Advances in Modeling Earth Systems  
In earth system modeling, biogeochemistry strongly affects mass and energy exchanges between ecosystems and the physical climate system (Heinze et al., 2019) . Morphologically, biogeochemistry has three pillars: biology, geophysics, and chemistry. In the context of mathematical modeling, geophysics and chemistry generally have much stronger theoretical foundations than biology (Brutsaert, 2005; Stumm & Morgan, 1996; Vallis, 2006) , even though all three are macroscale responses that emerge from
more » ... atomic interactions, which in an ideal (but impractical) scenario can be predicted by solving the Schrödinger equation of all atoms together (so that arguably they all are subtopics of physics; Feynman et al., 2011c) . In seeking a better understanding of ecological dynamics, for example, competition and symbiosis, mathematical formulations of the substrate-consumer relationship (e.g., the interactions between many microbes as consumers and their diverse substrates) are essential for theoretical modeling and interpreting empirical experiments, such as phytoplankton population dynamics (Tilman, 1982) , plant-microbial competition of nutrients (Zhu et al., 2017) , and microbial decomposition of organic matter (Tang & Riley, 2013b; Yu
doi:10.1029/2021ms002469 fatcat:b2n6kpog3fdatfxan75mq7mn3a