In the paper, the results of mathematical modeling of colorimetric parameters of peatlands are presented the purpose of modeling is to find the relationship between the values of these colorimetric parameters and the degree of moisture in peatlands, which determines the risk of their ignition. It is about the colorimetric parameters associated with the state of plant communities in peatlands, described by the Margalef's model of succession and colorimetric parameters, the values of which can be remotely determined by computer analysis of the RGB model of digital photos of peatlands. Mathematical modeling was carried out in two stages. At the first stage, with the help of discrete modeling of dynamic systems, a formalized description of the dynamics of the indicated colorimetric parameters was obtained in the form of idealized trajectories of the system. Further, using these idealized trajectories of the system, working hypotheses were formulated regarding the relations of colorimetric parameters, the remote registration of which makes it possible to estimate the degree of moisture of peatlands. The wording of these working hypotheses was carried out based on the results of a comparative analysis of the type of idealized trajectories of systems built on the material of photos of peatlands for dry and wet years. At the second stage, using standard methods of decision trees, the working hypotheses formulated at the first stage were tested. The structure of the obtained decision trees makes it possible to find the values of the Spearman correlation of the above colorimetric features that determine the probability of a dry or wet state of peatlands. The applied value of the results obtained is determined by finding a new approach to the development of automatic and automated systems for remote recording of the degree of moisture in peatlands.