Author:

Keywords:

nitrogen, validation, nitrogen dynamics, simulation, water dynamics, water, Science & Technology, Life Sciences & Biomedicine, Ecology, Environmental Sciences & Ecology, NITROGEN, VALIDATION, WATER DYNAMICS, NITROGEN DYNAMICS, SIMULATION, WATER

Abstract:

The WAVE-model (Water and Agrochemicals in the soil and Vadose Environment), simulating one-dimensional transport of water, solute and heat in the unsaturated zone, was used to simulate the behaviour of water and nitrogen in soils cropped with winter wheat and sugar beet. Soil water transport was modelled using the Richards equation, while solute transport was described with a convection equation. Soil mineral nitrogen transformations were simulated using first-order kinetics, while for the organic matter turnover three organic matter pools were considered. A summary model was used to simulate crop growth.