Effect of nutrient loading on surface waters in polder Bergambacht, The Netherlands
Year: 2002
Type: conference-paper
Abstract: A model study is presented, in which a soil-groundwater model, a surface water model and an ecological model have jointly been applied for simulation of an agricultural peat area in the Netherlands. The flows and conc-enti'ations of N and P have been modelled for a period of several years. The results for N are quite satisfying, while P concentrations are somewhat underestimated. A theoretical no-manure scenario was simulated in order to assess the potential effects of nutrient reduction measures. It was concluded that the response time of the soil-water system is very slow, of the order of several tens of years. Key words modelling; nutrient loading; soil-groundwater interaction; water quality modelling INTRODUCTION In The Netherlands general threshold values for the concentration of P and N have been set for stagnant waters. To scientifically underpin the setting of standards for nutrient concentrations in other types of surface water, projects have been set up. In this paper a methodology used for polder ditches is presented. The calculated results of a fictional scenario in which the nutrient loading is reduced significantly are presented.
Language: English
Subfield: Environmental Chemistry
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2165053885