ANALYSIS OF CONNECTIVITY AND CHARACTERISTICS OF PASSAGE USING TRACER TEST IN BETON RESURGENCE HYDROGEOLOGICAL SYSTEM, GUNUNGSEWU KARST AREA, INDONESIA
Ahmad Cahyadi, Eko Haryono, Tjahyo Nugroho Adji, M Widyastuti, Indra Agus Riyanto, Muhammad Naufal, Fajri Ramadhan, Romza Fauzan Agniy
Department of Environmental Geography, Faculty of Geography, Universitas Gadjah Mada
Abstract
An understanding of the hydrogeological system and catchment area of spring is very important. This is to help manage that maintains its sustainability. Beton Resurgence is one of the springs that have a very important role in the Ponjong area, Gunungkidul Regency. Water supply from the spring is used to supply clean water, irrigated rice fields, and fisheries. This study aims to determine the connectivity and characterization of Passage in the Beton hydrogeological system. The method used is a tracer test using fluorescent dyes. The results of the analysis of breaktrough curve indicate that Seropan Sinking Stream has connectivity with Beton resurgence, and has passage characteristics in the form of a single conduit. The further development of the passage shows that the hydrogeological system is strongly influenced by groundwater recharge originating from an allogenic system that originates in non-karst areas and has a high susceptibility to groundwater pollution.
Keywords: Karst, Allogenic River, Gunungsewu Karst Area, Tracer Test, Beton Resurgence
Topic: Environment, Health, and Safety