Analysis of seasonal variation of factors affecting algae growth in a lake of the inner Hanoi city by using a eutrophication model

Abstract

    The growth of algae in urban lakes in Hanoi is greatly influenced by the seasonal variation offactors of nutrients, water temperature and solar radiation intensity. Using the eutroficationsimulation model tool to describe and evaluate the influence of the elements in the form ofsimulation functions that limit the development of algae. The results of this paper indicate the levelof influence of each factor as well as their integration on each algal group is different. Seasonalvariation in production components (diffusion from sediment, atmosphere and excretion fromalgae) and consumption (photosynthesis) of dissolved inorganic phosphorus (DIP) are alsoquantified. On the other hand, the eutrophication model promises to be a useful tool to simulate therelationship between algae biomass and nutrient concentration, as well as predict changes in algaecomposition and density in a short term.