Analysis of the sorption and migration of substances in soil with the use of mathematical models

Little-discussed aspects of mathematical models of migration, which contribute to better understanding of soil processes, were considered. These are the effect of the sorption isotherm parameters and sorption kinetics on the complexity of the migration models, the potentially great contribution of the diffusion of adsorbed ions to the general migration in the soil, the probability of an anomalously high diffusion flux through the soil under high sorption conditions, and the possibility for the nontrivial assessment of the exchangeable and mobile forms of substances in the soil from the migration parameters. The migration analysis features under field conditions and related additional uncertainties compared to the laboratory experiments were discussed, as well as new opportunities for the control of the technogenic contamination of the environment.