Study on the algal dynamic model for West Lake, Hangzhou

摘要: An algal dynamic model describing the ecosystem of West Lake, Hangzhou, one typical shallow and eutrophic lakes, was proposed. The consists 13 state variables such as biomass four main algae (Cyanophyta, Chlorophyta, Cryptophyta Bacillariophyta) respective content phosphorus, zooplankton, phosphorus in orthophosphate, detritus sediment. Model simulation carried out on year time scale to describe change zooplankton. result calibration verification shows that can reasonably respond changes forcing function lake ecosystem. compares possible water quality with drawing quantity, stream removing quantity has been used simulate changing measure taken. It by sediment is most available, Cyanophyta, will descend obviously. Furthermore, improvement above measures also evaluated. On basis results simulations, best management strategy limiting eutrophication processes Lake pointed out.