Naslov
Estimating Groundwater Pollution With Nitrogen: A Case Study in Eastern Croatia

Autori
Filipović, Vilim ; Petošić, Dragutin ; Mustać, Ivan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Transport of Water, Chemicals and Energy in the Soil-Plant-Atmosphere System / Čelkova, A. - Bratislava : Institute of Hydrology SAS, 2011, 108-114

ISBN
978-80-89139-26-2

Skup
19th Internatinal Poster day and Institute of Hydrology Open Day

Mjesto i datum
Bratislava, Slovačka, 10.11.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
groundwater; agriculture; nitrogen; piezometers

Sažetak
Nitrate is one of the major agriculture-derived pollutants leaching to groundwater. This paper discusses the contamination level of nitrate-N concentrations in groundwater in a typical high-yielding area of eastern Croatia. Groundwater quality from the countertop part of the soil profile to 4.0 m depth was monitored by 40 installed hydropedological piezometers. Sampling water from piezometers was carried out every 60 days. In the groundwater samples nitrate, ammonia nad total nitrogen were analyzed. According to the indicators it was confirmed that at all locations during the observation period mean concentrations of NH4-N, NO3-N and total nitrogen (N) in the groundwater from piezometers occasionally exceeded the value of maximum allowable concentration (MAC). The mean concentrations of NO3-N were consistent and varied in the range from 2.42 to 4.61 mg NO3-N/l, the mean concentrations of nitrogen from ammonia exceed the permissible value (NH4-N) throughout the year with the average being higher than MAC (0.50 mg NH4-N/l) and were within the range of 0.57 mg NH4-N/l to 1.21 mg NH4-N/l. Observation of traditional agricultural production in the investigation area with emphasis on leaching of nitrogen shows that it represents a potential threat to the future pollution of groundwater with nitrogen.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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