Simulation of Shallow Lake Eutrophication

摘要

Natural and man induced water pollution affects the functioning of freshwater ecosystems, restricts various water uses and risks human health. Especially, internal pollution by nutrient remobilization from sediment plays an important role in shallow water bodies. In this paper results of a water quality simulation framework for shallow lakes of the River Havel are presented. The framework consists of a simulation model combined with a multicriteria optimization procedure. Model state variables are phytoplankton, zooplankton, orthophosphate phosphorus, ammonia nitrogen and nitrate nitrogen. External driving forces are photoperiod, solar radiation and water temperature. For water quality management two control strategies are discussed.