Spatial-temporal evolution of the aquatic ecosystems – criteria for establishing the ecological dynamics

ECODIN Project has proposed to emphasis the spatial-temporal evolution of the aquatic ecosystems characteristics on a emissary range, creating a data base useful for the developing of a mathematical model for estimating the biological and ecological diversity dynamics in a structural and functional plan. The investigations systemically made to the characteristics of the water (surface water and groundwater) and sediments environment compounds allowed the integrated approach of the pollution phenomenon extended to the groundwater and the identification of the inter influence between the phreatic and the surface waters. For realized a specialized software it was projected and experimented an INTEGRATED MONITORIZATION SYSTEM to established the dynamic ecological situation of the Suceava river and 3 of his main tributaries (Pozen, Solonet, Salcea), investigating the underground water in the neighbor of the Suceava river and studying the metals partition in the Suceava river sediments.The system include: a) 25 monitoring sections (17 on the Suceava river, 5 on the Solonet stream, 2 on the Pozen stream and 1 on the Salcea stream); in every monitoring sections were determined 27 physicochemical and biological parameters for the surface water and 9 physicochemical and biological parameters for the sediments; b) 3 drilling underground water; were determined 10 physico-chemical parameters.The system were applicated in 12 investigation campaigns which include all seasons. The experimental dates obtained were introduced in a unique DATABASE, once defined and simultaneously used by more software routine; the dates represented a common resource for all system routines. The DATABASE contains the operational dates and their description.The dynamic ecological situation was described using a MATHEMATIC MODEL which include 9 integrated differential equations by Euler method; in the structure of the equations were used 27 parameters in correlation with the indicators review. Based on mathematical model and experimental dates were realized, a functional model, SOFTWARE APPLICATION “ECODIN”. The application include two functional models:
-a software module of numeric and graphic analyse of the environmental components surface water and sediment
- a software module estimation the main pollutants values in some monitoring sections of the both rivers, Suceava and Solonet.