<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The paper is based on the hypothesis that coastal lakes significantly affect changes in the quality of freshwater coming from catchments, which is best reflected in the reduction of biogenic loads. Some of the main reasons for this phenomenon include unique geographic locations of coastal lakes and physical and chemical properties of their waters as well as other hydrographic determinants that affect water circulation in catchments. The study area covered the direct drainage basin of Lake Lebsko, which is located in Słowiński National Park in northern Poland, on the coast of the southern Baltic Sea. The study was conducted from June 2008 to October 2010. Fieldwork was the main part of the research project and included hydrographic mapping, water sampling for laboratory analysis, and measurement of the discharge in all tributaries and outflows of the studied lake. Water chemistry data for Lake Lebsko indicate a significant accumulation of biogenic materials in the lake, which proves a strong effect exerted by the lake on the incoming water. This is true for both total chemical loads per year as well as concentrations of selected ions over short time intervals. This standard pattern may be interrupted by seawater intrusions that alter water chemistry in the whole lake.</p>
</abstract>

The paper is based on the hypothesis that coastal lakes significantly affect changes in the quality of freshwater coming from catchments, which is best reflected in the reduction of biogenic loads. Some of the main reasons for this phenomenon include unique geographic locations of coastal lakes and physical and chemical properties of their waters as well as other hydrographic determinants that affect water circulation in catchments. The study area covered the direct drainage basin of Lake Lebsko, which is located in Słowiński National Park in northern Poland, on the coast of the southern Baltic Sea. The study was conducted from June 2008 to October 2010. Fieldwork was the main part of the research project and included hydrographic mapping, water sampling for laboratory analysis, and measurement of the discharge in all tributaries and outflows of the studied lake. Water chemistry data for Lake Lebsko indicate a significant accumulation of biogenic materials in the lake, which proves a strong effect exerted by the lake on the incoming water. This is true for both total chemical loads per year as well as concentrations of selected ions over short time intervals. This standard pattern may be interrupted by seawater intrusions that alter water chemistry in the whole lake.

The simplistic nitrogen input and output balance in Lake Łebsko – case study

Department of Hydrology, Institute of Geography

Oceanological and Hydrobiological Studies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The paper is based on the hypothesis that coastal lakes significantly affect changes in the quality of freshwater coming from catchments, which is best...

The simplistic nitrogen input and output balance in Lake Łebsko – case study

Article Category: Original research paper

Pubblicato online: 22 set 2016

Pagine: 424 - 443

Ricevuto: 07 ott 2015

Accettato: 11 gen 2016

DOI: https://doi.org/10.1515/ohs-2016-0037

Parole chiave
coastal lakes, nitrogen load, hydrochemistry, Baltic coast

© 2016 Faculty of Oceanography and Geography, University of Gdańsk, Poland. All rights reserved

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The simplistic nitrogen input and output balance in Lake Łebsko – case study

Article Category: Original research paper

Pubblicato online: 22 set 2016

Pagine: 424 - 443

Ricevuto: 07 ott 2015

Accettato: 11 gen 2016

DOI: https://doi.org/10.1515/ohs-2016-0037

Parole chiavecoastal lakes, nitrogen load, hydrochemistry, Baltic coast

© 2016 Faculty of Oceanography and Geography, University of Gdańsk, Poland. All rights reserved

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Parole chiave
coastal lakes, nitrogen load, hydrochemistry, Baltic coast