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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): Misevičienė, Stefanija;Gužys, Saulius
Title: Nitrogen compound‘s alternation in groundwater by fields manuring in large livestock enterprises
Is part of: Rural Development 2015: Towards the transfer of knowledge, innovations and social progress: 7th international scientific conference, 19–20th November, 2015, Aleksandras Stulginskis University, Lithuania [elektroninis išteklius]: proceedings. Akademija : Aleksandras Stulginskis University, 2015
Extent: p. 1-7
Date: 2015
Note: ISSN 1822-3230 (ankstesnių spausdintų leidinių)
Keywords: Borehole;Concentrations of Ntotal;NO3-N;NO2-N;NH4-4;Groundwater;Manure;Soil
ISBN: 9786094490927
Abstract: Livestock enterprises are the biggest source of point pollution, whose effect on groundwater quality has not been researched enough, so it is not enough to make sound conclusions about their effect on the groundwater quality. The aim of this research was to determine what effect annually manure fertilised fields of large livestock enterprises have on groundwater quality. The experiment was carried out in the Middle Lithuanian Lowland in Kėdainiai district. The groundwater quality research was conducted during 2008–2012 in a manure fertilised field of a livestock enterprise. There were higher Ntotal and NO3-N concentrations (2.4 and 2.8 times respectively) determined in the borehole, which was situated in a manure fertilised field. As groundwater level rises in the boreholes, the Ntotal and NO3-N concentrations increase: in the manure fertilised field – r=0.46 and r=0.53, and in the sheds territory – r=0.41 and r=0.48, respectively. NH4-N concentrations in the boreholes have a tendency to fall as the water level rises – r=0.10 and r=0.28 respectively. Air temperature, rather than the precipitation level and Nmin reserves in the soil, had a bigger impact on the increase of NO3-N and NH4-N concentrations in the borehole, while the mentioned factors had no effect on Ntotal and NO2 - N concentrations. Ntotal, NO3-N, NO2-N and NH4-N concentrations (r=-0.31) in borehole, installed in the sheds territory had a tendency to increase when air temperature was low
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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