Affiliation:
1. Dept of Hydraulics , Vilnius Gediminas Technical University , Sauletekio al. 11, Vilnius, LT‐10223, Lithuania
Abstract
Water protection is one of the most all‐round regulated areas of the EU environmental control. In order to prognose the state of water ecosystem it is necessary to evaluate its long‐term changes. The paper analyses water quality of three southeast Lithuanian rivers (the Streva, the Merkys, the Šventoji) during the last three decades. The dependence of river water abundance and biogenic matter (mineral nitrogen and phosphorus) concentrations and amount changes was analysed. By investigating the annual data of biogenic matter concentrations and discharges during the period of 30 years, it is established that there is no dependence. After an additional sampling (3 times a month) of surface waters it is established that the dependence is strong, the coefficient of correlation fluctuates from 0,5 to 0,99.
Publisher
Vilnius Gediminas Technical University
Subject
Management, Monitoring, Policy and Law,Nature and Landscape Conservation,Environmental Engineering
Cited by
3 articles.
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1. Nitrogen Compunds in the Surface Water Identifying Concentrations and Sources;Proccedings of 10th International Conference "Environmental Engineering";2017-08-10
2. Assessment of nitrogen pollution reduction options in the river Nemunas (Lithuania) using FyrisNP model;Journal of Environmental Engineering and Landscape Management;2012-10-11
3. SUBSURFACE CHEMICAL DISCHARGE IN LITHUANIAN AREA;JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT;2010-09-30