TY - JOUR T1 - Mathematical Modeling of Ecotoxicant Behavior in “Soil–Vegetation Cover” Systems A1 - Bekmyrza Zhumash A1 - Aliya Yskak A1 - Sergey Mamikhin A1 - Denis Lipatov A1 - Almabek Nugmanov A1 - Dmitry Manakhov A1 - Gulnaz Yermoldina A1 - Seitbek Kuanyshbayev A1 - Moldir Uxikbayeva A1 - Zhassulan Irzhanov A1 - Akhmet Bugubaev A1 - Aruzhan Nurseitova A1 - Petr Lyanga A1 - Zayna Zhussupbekova JF - World Journal of Environmental Biosciences JO - World J Environ Biosci SN - 2277-8047 Y1 - 2026 VL - 15 IS - 2 DO - 10.51847/jD6qNlerMh SP - 121 EP - 129 N2 - Technogenic contamination of soils and vegetation by radionuclides, heavy metals, pesticides, and other ecotoxicants requires reliable tools for assessing pollutant redistribution and forecasting environmental risks. This study examines mathematical modeling approaches for describing ecotoxicant behavior in soil–plant systems and identifies the principal processes that should be incorporated into simulation algorithms, including vertical and lateral migration, transformation between physicochemical forms, fixation in soil, root uptake, biological redistribution, degradation, and removal from the system. Existing mathematical models of pollutant migration and bioavailability are analyzed to define general principles for model development and parameterization. Particular attention is given to low-parameter modeling as an approach suitable for situations where complete experimental datasets are unavailable. Based on the previously developed VERT_MIG and 3Dmig_mod_aut algorithms, the 3Dsoil_plants algorithm is proposed for simulating the spatiotemporal dynamics of ecotoxicants in soil–plant systems. The model represents soil as interconnected spatial cells and accounts for both vertical and horizontal pollutant transfer, as well as interactions with vegetation. Models based on this algorithm were implemented in the cross-platform QB64 environment, enabling their use as standalone software under Windows, Linux, and macOS. The proposed approach provides a flexible framework for forecasting ecotoxicant redistribution under spatially heterogeneous contamination conditions. UR - https://environmentaljournals.org/article/mathematical-modeling-of-ecotoxicant-behavior-in-soilvegetation-cover-systems-wdjav3pymrflad4 ER -