Aquifer vulnerability in the Coastal Northern Part of Lombok Island Indonesia

Gumilar Utamas Nugraha (), Hendra Bakti, Rachmat Fajar Lubis, Yayat Sudrajat and Ilham Arisbaya
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Gumilar Utamas Nugraha: Indonesian Institute of Sciences
Hendra Bakti: Indonesian Institute of Sciences
Rachmat Fajar Lubis: Indonesian Institute of Sciences
Yayat Sudrajat: Indonesian Institute of Sciences
Ilham Arisbaya: Indonesian Institute of Sciences

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2022, vol. 24, issue 1, No 59, 1390-1410

Abstract: Abstract Northern part of Lombok island has a unique geological phenomenon of submarine groundwater discharge. Submarine groundwater discharge needs to be conserved for its sustainability. This study asseses groundwater vulnerability for SGD conservation in the northern part of Lombok Island Indonesia. The assessment was conducted using aquifer vulnerability index methods. Vulnerability index value in the study area is high vulnerability index. This vulnerability index is getting higher toward the coast. The layer is tuffaceous pumice layer with a hydraulic conductivity value of 5 m/day. This layer makes the aquifer in the study area very vulnerable to contamination, especially for pollution involving vertical percolation and infiltration. Protective management is needed to prevent groundwater hazard in the research location due to groundwater pollution and heavy pumping. Anthropogenic activity at the study area should be anticipated because of the high index of aquifer susceptibility at the study area.

Keywords: Aquifer vulnerability index; Electrical resistivity tomography; Hydraulic conductivity; Protective layer (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10668-021-01459-0

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