THE EUTROPHICATION PHENOMENON IN GOLEŞTI LAKE - ROMANIA
GABRIELA ELENA DUMITRAN , LIANA IOANA VUTĂ ,
ABSTRACT. – Eutrophication on worldwide scale, as an effect
of the anthropic impact, is one of the most serious problems that affect the
quality of the water. Existence of a large percentage of lakes with
eutrophication problems, demands a predictive tool for the quality of these
ecosystems.
This study present the qualitative analysis of such an ecosystem, based on
ecological modelling. This paper proposes an ecological model
(nutrient-phytoplankton) that describes the biochemical behaviour of a eutrophic
reservoir. The 1D model developed allows the estimation of nutrients
concentration and algae biomass and nutrient limited evidence on algal growth
rate. The model was calibrated and validated with data from 2008 and 2009 in
Goleşti Lake. The model reproduces spatial and temporal concentration
distribution of water quality constituents.
Keywords: lake, eutrophication, ecological model, nutrients, water quality.