Circulation in karst aquifers in which the water moves in certain preferred zones and does not occupy all or most of the openings below this level [10]. Synonyms: (French.) circulation preferentielle; (German.) Ortlich begrenzte Karstwaber- Zirkulation; (Italian.) circolazione carsica parziale; (Spanish.) circulacion localizada; (Turkish.) yersel dolasim; (Yugoslavian.) lokalizirana (lokalna) cirkulacija. Compare diffuse circulation.