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Type of publication: research article
Type of publication (PDB): Straipsnis konferencijos medžiagoje Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or Scopus DB conference proceedings (P1a)
Field of Science: Aplinkos inžinerija / Environmental engineering (T004)
Author(s): Ruminaitė, Rasa;Rudzianskaitė, Aurelija
Title: Change of water Quality in the rivers and streams of Lithuania karst zone
Is part of: Rural development 2011 : 5th international scientific conference, 24-25 November, 2011, Akademija : proceedings. Akademija : Aleksandras Stulginskis University, Vol. 5, b. 2 (2011)
Extent: p. 332-336
Date: 2011
Abstract: The quality of water in rivers depends on physical – geographical conditions of the watershed; in addition it is affected by economical activities of people. The article analyzes variation of runoff, nitrogen compounds and total phosphorus in the rivers (Levuo, Tatula, Nemunelis) and streams (Bere and G-1) of the karst zone. The state monitoring data is used to describe the runoff and water quality in the rivers; the data of the investigations performed by the Water Management Institute of LUA is used to describe the analogous characteristics of the streams. This analysis aims to find out the overall patterns of water quality changes in the rivers and streams of same region. The nitrate nitrogen concentration has been determined to be higher in streams than it is in the rivers. During the period (1996-2005) in each river nitrate nitrogen and total phosphorus concentration patterns were different. The sources of ammonium nitrogen in the rivers and the streams tend to be different. The increase of total phosphorus concentration in rivers is due to the concentrated pollution, in streams – due to the natural soil phosphorus content and application of phosphorus fertilizers
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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