First Outcomes from New Approach in Assessing Recharge of Highly Karstified Terrains – Cases Examples from Montenegro

Abstract

The recharge of a karst aquifer, in terms of its quantity and spatial distribution depends on various natural factors, such as: climate, topography, vegetation, soil, geology etc. Selection of adequate method for assessing recharge in karst often represents matter of dispute. Multi-parametermethods using GIS tools have been recently successfully developed and applied in karstic terrains of Spain (Andreo et al. 2008) and Lebanon (Shaban et al. 2005). Specific local conditions as highly karstified terrains could additionally complicate such an assessment. The Montenegro karstified terrain, as southern part of External Dinarides, is characterized by very high precipitation rate, irregular seasonal distribution and absence of surface waters (high infiltration capacity of karst). Considering such conditions, an attempt to adapt existing knowledge and experiences and develop appropriate multi-parameter method for assessing spatial distribution of autogenous recharge has been made. Method KARSTLOP has been developed, applied and calibrated at catchments of several large karst springs of Montenegro.Obtained results in tested catchment areas indicate that with some further improvements the KARSTLOP method can support research of karstic aquifer in similar highly karstified terrains.