Utjecaj oborina na koncentracije nitrata u podzemnoj vodi na priljevnom području crpilišta Mala Mlaka

master's thesis

• Title: Utjecaj oborina na koncentracije nitrata u podzemnoj vodi na priljevnom području crpilišta Mala Mlaka : diplomski rad
• Title (english): The effect of precipitations on the groundwater nitrate concentrations in the inflow area of well field Mala Mlaka : master's thesis
• Author: Valentina Hruška
• Mentor: Andrea Bačani (mentor)
• Committee member: Andrea Bačani
• Committee member: Jelena Parlov
• Committee member: Stanko Ružičić
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Geology and Geological Engineering); Zagreb
• Defense date and country: 2015-11-20, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Geological Engineering

Abstract

Provedena je analiza utjecaja oborina na koncentracije nitrata u podzemnoj vodi zagrebačkog vodonosnika u priljevnom području crpilišta Mala Mlaka. Za proračun su korištene koncentracije nitrata izmjerene na piezometrima koji se nalaze unutar istraživanog područja, dok su podaci o oborinama uzeti s meteorološke stanice Botinec. Pri analizi, izračunat je Spearmanov koeficijent korelacije oborina i godišnjih vrijednosti koncentracija nitrata u podzemnoj vodi za dvadeset i dva piezometra. Isto tako, izračunati su Pearsonov i Spearmanov koeficijent korelacije oborina i mjesečnih vrijednosti koncentracija nitrata u podzemnoj vodi za osam piezometara. Za svaki koeficijent korelacije izračunata je statistička značajnost pomoću t-testa. U sklopu ovoga istraživanja provedena je procjena utjecaja debljine nesaturirane zone na koncentracije nitrata u podzemnoj vodi te procjena vremena procjeđivanja oborine kroz nesaturiranu zonu do podzemne vode.

Abstract (english)

Abstract: An analysis of precipitation influence on nitrate concentrations in groundwater has been conducted in the inflow area of well field Mala Mlaka. In estimate, there were nitrate concentrations measured on piezometers, which are situated in a research area, while precipitation data was taken from the meteorological station Botinec. Spearman's correlation coefficients of precipitation and annual nitrates concentrations in groundwater, were calculated for twenty-two piezometers. Pearson's and Spearman's correlation coefficients of precipitation and monthly nitrates concentrations in groundwater were also calculated for eight piezometers. For each correlation coefficient, statistical significance was calculated using the t-test. As part of this research, an impact assessment has been conducted of the thickness of the unsaturated zone on nitrate concentrations in groundwater and an assessment of the infiltration time of precipitation through the unsaturated zone all the way to the water table.

• Keywords: koncentracije nitrata; oborine; koeficijent korelacije; statistička značajnost; nesaturirana zona
• Keywords (english): nitrate concentrations; precipitation; correlation coefficient; statistical significance; unsaturated zone
• Language: croatian
• URN:NBN: urn:nbn:hr:169:463805
• Study programme: Title: Geological engineering; specializations in: Hydrogeology and engineering geology, Environmental geology; Course: Hydrogeology and engineering geology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka geološkog inženjerstva (magistar/magistra inženjer/inženjerka geološkog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2016-02-11 12:04:25