Quantity status of groundwater in alluvial aquifers in northern Croatia

Title (Dublin Core)

Description (Dublin Core)

The quantity and spatial distribution of groundwater in Croatia is determined by geological composition, climate and hydrological conditions and the hydrogeological characteristics of individual areas. Northern Croatia is part of the southern margin of the Pannonian basin and is dominated by the spacious lowlands of the Sava and Drava rivers, where aquifers of intergranular porosity of Pleistocene and Holocene ages were formed. The lithological composition of the aquifers is dominated by gravel and sand in the western parts of the Drava and Sava basins. Sandy aquifers are prevalent in the central and eastern parts. Groundwater accumulated in these aquifers is the basis of the water supply in northern Croatia, which is the reason why monitoring of its status, both quantitative and qualitative is exceptionally important. Data obtained by long-term monitoring of groundwater levels facilitated assessment of the quantitative status of groundwater. To determine the causes of changes in the hydrodynamic conditions of the aquifers, results of long-term monitoring of precipitation and stages of the Drava and Sava rivers were also used. Linear regression was used to analyse changes in groundwater levels, the Drava and Sava river stages and precipitation quantities. The results generally show that there is a negative groundwater level trend over almost the entire area of the Drava and Sava alluvial aquifer. This is a consequence of deepening of the Drava and Sava river beds and lowering of their stages, together with a decreasing trend of total annual precipitation.

Creator (Dublin Core)

Željka Brkić

Ozren Larva

Kosta Urumović

Subject (Dublin Core)

monitoring, groundwater level trend, stages of the Drava and Sava rivers, precipitation

Geology

QE1-996.5

Publisher (Dublin Core)

Croatian Geological Survey

Date (Dublin Core)

2010-10-01T00:00:00Z

Type (Dublin Core)

article

Identifier (Dublin Core)

1330-030X

1333-4875

10.4154/GC.2010.23

https://doaj.org/article/397e029e78cd4aac85dc8180385bb8b0

Source (Dublin Core)

Geologia Croatica, Vol 63, Iss 3 (2010)

Language (Dublin Core)

EN

Relation (Dublin Core)

http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/106

https://doaj.org/toc/1330-030X

https://doaj.org/toc/1333-4875

Provenance (Dublin Core)

Journal Licence: CC BY

Item