Naslov
Water flow and solute transport modelling in soil at Kosnica site

Autori
Ružičić, Stanko ; Vedran Rubinić ; Marta Mileusnić ; Goran Durn

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
4th International Congress Eurosoil 2012 Soil Science for the Benefit of Mankind and Enviroment

Mjesto i datum
Bari, Italija, 02.07.2012. - 06.07.2012

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Modelling; soil; solute transport; Kosnica

Sažetak
The subject of this study is the soil zone above Zagreb unconfined Quaternary aquifer in which high concentration of several toxic metals were observed probably caused by industry, traffic, agriculture and urbanization. The goal of the study is land use impact assessment on groundwater quality, by 1D modelling of water flow and solute transport using Hydrus software. Investigated site is situated about 800 m from right bank of Sava River at Kosnica water capture site where Fluvisol type of soil is developed. The following soil horizons were recognized: O ; A ; AC ; C ; 2C/Cl ; 3 C1 ; 4Cl/Cr ; 5Cl/Cr and 6Cr. Soil is silty to sandy in texture. Soil pH increases while electrical conductivity generally decreases with depth. Air capacity is higher in the upper part of soil profile, while bulk density has opposite trend. All soil horizons are porous and have medium water retention capacity. One year monitoring of water content, electrical conductivity, soil water tension and concentration of metals in percolating water is in progress. The monitoring takes place at two different depths of the profile. The parameters stated are necessary for calibration of models. Results of electrical conductivity monitoring show no significant changes along profile. Soil water tension is higher in the upper part of the profile. Water content depends on weather conditions (varies from 17% to 35%). The results of this study will contribute to better understanding of metals migration through the soil zone and allow risk assessment of possible groundwater pollution.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Poljoprivreda (agronomija)

POVEZANOST RADA