Naslov
Behaviour of metals and nutrients in soils and groundwater of a karst polje

Autori
Marković, Tamara ; Miko, Slobodan ; Kapelj, Sanja ; Buljan, Renato ; Larva, Ozren ; Peh, Zoran

Izvornik
Journal of geochemical exploration (0375-6742) 88 (2006); 124-129

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
soil; metals; nutrients; groundwater quality

Sažetak
The Croatian south part of the country is mainly composed of strongly krastified carbonate rocks. Also in this south part of Croatia is lack of the large depressions and poljes with thick covers. Some karst poljes and depressions may have thick covers, like for example the Vransko polje. The Vransko polje is characterised by an intensive agricultural activity. At the centre of the polje is located a karst spring (Turanjsko jezero), which is used for the water supply of the town Biograd and its surroundings. Total metals, nutrients (nitrate, ammonia, phosphate), organic matter content and cation exchange capacity (CEC) were measured in soil samples collected from the polje. Metals and nutrients were also measured in the water samples of channel Kotarka (which is passing through the area) and three springs (Turanjsko jezero, Kakma and Tinj). Measured total concentrations of metals of soil samples were treated by R - cluster multivariate statistical analysis. The result of statistical analysis showed grouping of metals with similar behaviour. Content of metals and nutrients were low in the spring samples but high in the water sample of the channel Kotarka, because the channel drains the water from the surroundings. Although agricultural activity in the Vransko polje is high, there is no high anthropogenic influence on groundwater and soil. They are both of good quality.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

Napomena
Available online 23 November 2005. doi:10.1016/j.gexplo.2005.08.024

POVEZANOST RADA