IKBFU's Vestnik. Series: Natural Sciences

2010 Issue №1

Nutrient Fluxes from the Pregolya Catchment Area into the Vistula Lagoon

Abstract

The Vistula Lagoon of the Baltic Sea is one the most productive water bodies in Europe. The Pregolya River comprises the main part of the Vistula Lagoon's catchment area where the biggest cities and towns of the Kaliningrad Region are situated. The aim of the research is to estimate the nutrient (nitrogen and phosphorus) flux from the Pregolya River's catchment area into the Vistula Lagoon, which is composed by both point source emissions and diffuse load. The author applies the model of nutrient flux from the Pregolya River catchment area based on FyrisNP Version 3.1, which takes into account the catchment land use, nutrient runoff from point sources and lands of different types, stream characteristics, and precipitation.

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Estimation of Natural Protection of Groundwater in the Kaliningrad Region

Abstract

This paper makes an attempt to divide the territory of the region according to the degree of groundwater protection. Protection against pollution is provided by the tight sediment layer that prevents the penetration of contaminants from the surface into the aquifer. The author distinguishes areas of insufficient natural protection, potentially dangerous in terms of certain types of chemical and bacterial groundwater pollution.

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