Pages 211-219
It is known that an artificial lagoon has some functions of the water purification. The purpose of this study is to clarify the water purification mechanism of the artificial lagoon using an ecosystem modelling technique. An inner sea so-called "Uchiumi" in Rinku Park (near Kansai International Airport), which became the object of this study, forms an artificial lagoon. As the first step of this study, we investigated water and soil quality and organism of the artificial lagoon in Rinku Park. The results of these investigations suggested that the fixation of organic carbon and nutrient in the seawater is significantly affected by the biomass of algae. Algae also make good habitats for sessile organisms and nektons.
