Utjecaj tla na pronos hranjivih tvari u Varaždinskom aluvijalnom vodonosniku

master's thesis

• Title (english): Soil impact on nutrient flow in the Varaždin alluvial aquifer
• Author: Ivana Zoričić
• Mentor: Marijan Kovačić (mentor)
• Committee member: Marijan Kovačić (predsjednik povjerenstva)
• Committee member: Hana Fajković (član povjerenstva)
• Committee member: Nenad Tomašić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2018-10-29, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology; Mineralogy and Petrology

Abstract

Varaždinska županija poznata je po poljoprivrednoj proizvodnji. Od 70-tih godina na ovom području visoke su koncentracije nitrata u podzemnoj vodi koja se koristi za navodnjavanje i vodoopskrbu. Uvidom u rezultate istraživanja, može se zaključiti da je glavni uzrok visokim koncentracijama nitrata, ortofosfata te metala, prekomjerena gnojidba poljoprivrednih zemljišta umjetnim ali i stajskim gnojivima. Stajski gnoj, posebno gnoj peradi s istraživanog područja pridonosi porastu koncentracije nitrata. Također, upotreba zaštitnih sredstava u voćnjacima pridonijela je porastu sadržaja metala u tlu ali i u podzemnim vodama. Pravovremenom gnojidbom, izgradnjom skladišnih kapaciteta za gnoj te izgradnjom kanalizacijskog sustava na ovom području, navedene posljedice u okolišu mogle bi se smanjiti.

Abstract (english)

Varaždin county is well known for its agriculture. Since 1970's this area has had high nitrate concentrations in the groundwater used for irrigation and water supply. This paper shows that the main culprit for the high concentrations of nitrates, orthophosphates and metals is overfertilisation of agricultural land with artificial and natural manure. Stable manure, especially poultry manure from the examined area contributes to the rise in nitrate concentration. Use of pesticides to treat orchards also attributes to this rise in metal concentrations in soil, but also in underground waters. Correct and timely fertilisation, building warehouses for manure and a good sevage system could drastically diminish effects on the environment in this area.

• Keywords: poljoprivreda; onečišćenje; nitrati; tlo; podzemne vode
• Keywords (english): agriculture; pollution; nitrates; soil; groundwater
• Language: croatian
• URN:NBN: urn:nbn:hr:217:427524
• Study programme: Title: Graduate university study of Environmental Geology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra geologije (magistar/magistra geologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-12-13 08:53:02