Mathematical Modelling of Growth Intensity of Roadside Plants

Abstract

To maintain safety during winter, deicing salt (sodium chloride) is sprinkled over roads. Snow, mixed with highway salt, is then cleared by snowplows and usually ends up on roadsides where trees are planted. On conifers, adversely affected by deicing salt, needle shedding is accelerated. Undesirable results for the environment, caused by road maintenance chemical, are damaged vegetation, soil, polluted surface and groundwater, therefore, fauna, and people are also negatively impacted. The aim of modelling is to find a coefficient for calculating ryegrass, fescue grass and meadow‐grass length of overground part after some time, accepting that the concentration of salt in melting snow and air temperature will be the same during investgation.

Soil Remediation From Heavy Metals Using Mathematical Modelling/Sunkiųjų Metalų Valymas Iš Dirvožemio Remiantis Matematiniais Modeliais/Очищение Почвы От Тяжелых Металлов С Применением Математического Моделирования

“…Working with the model but not with the real object itself allows us to perform investigation on its features and behaviour in different possible situations inexpensively and sufficiently rapidly (advantages of the theory). In the meantime digital (computer, simulation, imitation) experiments with the models of objects, allow us, on the basis of contemporary digital methods and information technologies, to perform a detailed, deep and sufficiently full investigation into objects, which cannot always be achieved with the help of purely theoretical methods (advantages of the experiment) (Mathematical modelling … 2007;Baltrėnas et al 2006). The mathematical modelling programme REC (Risk Reduction, Environmental Merit and Cost) is based on the comparison of alternative cleaning technologies (to clean contaminated areas).…”