Constructor of soil carbon dynamic models

This paper introduces a carbon cycle model constructor (CCMC) — a software framework for specifying and solving systems of equations in soil carbon cycle models. The CCMC is based on the structure of a generalized system of ordinary differential equations with a multiplicative representation of mass transfer rates between pools. Most known carbon cycle models found in the literature are special cases of this system. The current implementation allows users to select a model from established formulations (INMCM soil block, SOCS, RothC), provide external environmental state variables, and define a spatial–temporal grid to simulate the evolution of soil carbon content. The CCMC enables subject-matter experts in biology, ecology, soil science, and Earth system dynamics to utilize the implemented mathematical models without requiring specialized knowledge in computational mathematics or programming.