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Aquifer vulnerability in the Coastal Northern Part of Lombok Island Indonesia

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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.

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Source: http://geo.cv.nctu.edu.tw

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source on homogeneous medium. Source (Telford et al., 1990)

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Most of the data used herein were collected and analyzed by the authors.

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Acknowledgements

We would like to thank to Deputy of Earth Sciences, Indonesian Institute of Sciences. Director of Research Center for Geotechnology, Indonesian Institute of Sciences. Mr. Gunardi Kusumah and Mr. Wisnu Arya Gemilang (Coastal Resources and Vulnerability Research Board, Ministry of Marine Affairs And Fisheries Republic Of Indonesia) for field assistance.

Funding

Data acquisition supported by Indonesian Institute of Sciences through competitive research funding year 2016 and Coastal Resources and Vulnerability Research Board, Ministry of Marine Affairs And Fisheries Republic Of Indonesia. Article (proof reading, proof editing, and publishing) charge has supported financially supported by the LIPI COREMAP-CTI 2021-2022 project, entitled “Research Priority and Capacity Development Program for Reef Management and Rehabilitation- Reef Triangle Initiative”.

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All authors contributed to the study of Aquifer Vulnerability in The Lombok Island Indonesia.

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Correspondence to Gumilar Utamas Nugraha.

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Nugraha, G.U., Bakti, H., Lubis, R.F. et al. Aquifer vulnerability in the Coastal Northern Part of Lombok Island Indonesia. Environ Dev Sustain 24, 1390–1410 (2022). https://doi.org/10.1007/s10668-021-01459-0

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  • DOI: https://doi.org/10.1007/s10668-021-01459-0

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