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001-es BibID:	BIBFORM071458
Első szerző:	Balla Dániel Zoltán (geográfus)
Cím:	Effects of land use changes on soil properties based on reambulated soil profiles / Dániel Balla, Tamás Mester, László Márta, Dávid Molnár, Norbert Barkóczi, Marianna Zichar, Ágnes Botos, Tibor József Novák
Dátum:	2017
ISSN:	2065-748X 2068-2964
Megjegyzések:	In our study, by investigating reambulated soil profiles from the Nagy-Sárrét region in Hungary we attempt to determine the extent of changes which have occurred due to effects which impacted the landscape in terms of the soil chemistry properties of soil profiles exposed during the Kreybig- soil survey more than 70 years ago. Based on the results, in the areas used as grassland we observed a decrease in pH and an increase in the humus content of the topsoil. The increased CaCO3 following the chemical improvement of the soil which used to be used as cropland is still characteristic of the area. During the past decades, the investigated soils have been affected by significant changes with regards to water management which have also modified the investigated parameters. We have classified the reambulated soil profiles among the Solonetz, Vertisol and Gleysol reference groups, based on the World Reference Base of Soil Resources (WRB) diagnostic system.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban archive soil data land use changes Kreybig Solonetz Vertisol Gleysol WRB
Megjelenés:	Acta Universitatis Sapientiae. Agriculture and Environment 9 : 1 (2017), p. 70-81. -
További szerzők:	Mester Tamás (1991-) (geográfus) Márta László (1993-) (geográfus) Molnár Dávid Barkóczi Norbert (1990-) (geográfus) Bodroginé Zichar Marianna (1971-) (informatikus, matematikus) Botos Ágnes (1990-) (természetvédelmi mérnök) Novák Tibor (1973-) (geográfus)
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM069664
035-os BibID:	(Scopus)85025127044
Első szerző:	Mester Tamás (geográfus)
Cím:	The effects of uninsulated sewage tanks on groundwater. A case study in an eastern Hungarian settlement / Mester Tamás, Szabó György, Bessenyei Éva, Karancsi Gergő, Barkóczi Norbert, Balla Dániel
Dátum:	2017
ISSN:	1429-7426 2083-4535
Megjegyzések:	In our study we attempt to demonstrate the effects of uninsulated sewage tanks, which are the most importantsources of contamination in settlements without sewage systems, on groundwater quality. We comparedthe results of measurements carried out before and one and a half years after the construction of the sewage system.We established 3 m deep monitoring wells within a 25 m radius of a sewage tank, which were then sampled,and the level of groundwater was recorded. The 3D model constructed on the basis of the saturated zoneshows that the effluent wastewater formed a groundwater level dome with a height of more than 1 m. After thesewage tank was taken out of use the difference between the highest and lowest groundwater levels decreased toa few centimetres. In our study we investigated the spatial distribution of NH4+ (ammonium). Using the 3D modelwe were able to precisely determine the volume of water bodies with different levels of contamination. In anapproximately 25 m3 water body, in the immediate environment of a sewage tank in use we detected NH4+ ata concentration which was characteristic of undiluted wastewater (>90 mg?dm?3). After the sewage tank was takenout of use, the concentration in its immediate environment decreased by more than 50%, although almost everywherein the modelled area concentrations were measured above the limit value. Based on the above, we canconclude that the cleaning process has started, but the complete decontamination of the groundwater will takeseveral years.
Tárgyszavak:	Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk ammonium groundwater contamination groundwater level modelling pollution wastewater
Megjelenés:	Journal of Water and Land Development. - 33 : 4-6 (2017), p. 123-129. -
További szerzők:	Szabó György (1964-) (geográfus, egyetemi tanár) Bessenyei Éva (1984-) (geográfus) Karancsi Gergő (1988-) (geográfus) Barkóczi Norbert (1990-) (geográfus) Balla Dániel Zoltán (1988-) (geográfus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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