Tschaikowski, Jarrid M. P. ORCID: https://orcid.org/0000-0003-3383-7459, Putra, Doni P. E., Pracoyo, Atas and Moosdorf, Nils ORCID: https://orcid.org/0000-0003-2822-8261 (2024) Tourism-Related Pressure on the Freshwater Lens of the Small Coral Island Gili Air, Indonesia. Water, 16 (2). p. 237. DOI https://doi.org/10.3390/w16020237.

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Abstract

Tourism on Gili Air, a small coral island in Indonesia, has increased significantly. Groundwater is the primary water source on the island. This study aims to estimate the sustainability of groundwater use on this small coral island. It conducts an initial assessment of the freshwater lens system using cost-effective methods to evaluate the available freshwater volume and sustainability of water withdrawals related to tourism. The results and methods can be transferred to other low-lying islands. The results show that Gili Air has a well-developed freshwater lens, estimated to contain 2 million cubic meters of water, with an annual recharge rate four times higher than the water demand of the island’s inhabitants. However, our findings suggest that the rapid increase in tourism resulted in unsustainable water withdrawals between 2016 and 2019. Without proper groundwater monitoring and management, this could lead to seawater intrusion into the aquifer.

Document Type: Article
Programme Area: PA1, PA2
Research affiliation: Biogeochemistry and Geology > Submarine Groundwater Discharge
Refereed: Yes
Open Access Journal?: Yes
DOI: https://doi.org/10.3390/w16020237
ISSN: 2073-4441
Date Deposited: 16 Jan 2024 08:00
Last Modified: 16 Jan 2024 08:00
URI: http://cris.leibniz-zmt.de/id/eprint/5340

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