Identification of Aquifer Characteristics and Potential Groundwater for Irrigation in the Data Sub-watershed of Wajo Regency, South Sulawesi

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Suhardi Suhardi

Abstract

Sustainable groundwater extraction can be achieved if there is a balance between the amount of groundwater extracted and recharge. The ability of aquifers to release groundwater that affects groundwater extraction and recharge depends on aquifer characteristics. Therefore, aquifer characteristics need to be known so that the amount of extraction does not exceed groundwater recharge. This study aims to determine the position, thickness, type, specific yield and hydraulic conductivity of aquifers and identify catchment areas as sources of groundwater and groundwater potential. This research was conducted by interpolating lithology data and measuring aquifer hydraulic conductivity by pumping test methods. Hydraulic conductivity values were processed using Solver Add Ins in Microsoft Excel to get optimal conductivity values. The source of groundwater recharge was predicted based on a flownet of groundwater surface contour data and groundwater potential calculated using the Darcy’s approach. The results showed that the hydraulic conductivity in the study area was 16.13 m / day, the specific result was 0.32 with aquifer in the form of sand. Based on the flownet, the source of recharge comes from the western side of the watershed which flows eastward with a potential of 14,517 m3 / day ≈ 168.02 lt / sec.

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How to Cite
Suhardi, S. (2020). Identification of Aquifer Characteristics and Potential Groundwater for Irrigation in the Data Sub-watershed of Wajo Regency, South Sulawesi. Jurnal Agritechno, 13(1), 42–50. https://doi.org/10.20956/at.v13i1.254

References

  1. Asdak, C. 2002. Hidrologi dan Pengelolaan Daerah Aliran sungai. Yogyakarta: Gadjah Mada University Press.
  2. [BAPPEDA KAB. WAJO] Badan Perencanaan Pembangunan Kabupaten Wajo, 2003. Laporan Akhir Studi Kelayakan Potensi Hasil Tambang Kabupaten Wajo. Sengkang: BAPPEDA KAB. WAJO.
  3. [BAPPEDA KAB. WAJO] Badan Perencanaan Pembangunan Kabupaten Wajo, 2003. Revisi Rencana Tata Ruang Wilayah Kabupaten Wajo. Fakta dan Analisis. Sengkang: BAPPEDA KAB. WAJO.
  4. Bear, J. and A. Verruijt, 1987. Modelling Groundwater Flow and Pollution. Dordrecht: D. Reidel Publ. Co.
  5. [DTLGKP] Direktorat Tata Lingkungan Geologi dan Kawasan Pertambangan, 2003. Penyediaan Prasarana dan Sarana Air bersih di Desa Wicudai,
  6. Kecamatan Pemana, Kabupaten Wajo, Provinsi Sulawesi Selatan. http://www.dgtl.esdm.go.id/airtanah/PPSA-WAJO2003.html. [1 Feb 2006].
  7. Hillel, D. 1980. Fundamentals of Soil Physics. New York: Academic Press.
  8. Irianto, S.G. 2007. Pedoman Teknis Pengembangan Irigasi Airtanah Dangkal. Jakarta: Direktorat Pengelolaan Air, Dirjen Pengelolaan Lahan dan Air, Deptan.
  9. Kusumayudha, S.B. 2003. Mengelola Airtanah, Perlu Model yang Pas http://publik.geopangea.or.id/saribk/artikel.shtml [6 Feb 2006].
  10. [P2AT SUL-SEL] Proyek Pengelolaan Air Tanah, Sulawesi Selatan, 2006. Uji Pendahuluan, Lakessi dan Manurung. Makassar: P2AT Sul-Sel, Tidak Dipublikasikan.
  11. Setiawan, B.I. and Suhardi, 2008. Optimization Models for Sustainable Utilization of Groundwater in Wajo District, South Sulawesi Province of Indonesia. Proceeding INWEPF 5th Steering Meeting and Symposium on Effect and Sustainable Water use to address Poverty Alleviation and Food Security. Bali, 13-15 November 2008.
  12. Suhardi, 2008. Model Pengelolaan Airbumi untuk Irigasi dengan Operasi Pompa Tunggal dan Ganda: Kasus Sub DAS Data, Kabupaten Wajo, Sulawesi Selatan. Disertas. Institut Pertanian Bogor.
  13. Suhardi, Budi Indra Setiawan, Hidayat Pawitan, Roh Santoso Budi Waspodo, 2011. Optimasi pemanfaatan air tanah untuk irigasi di kabupaten wajo, provinsi Sulawesi Selatan, Indonesia. Jurnal Irigasi: vol. 6 no. 2: 80-89.
  14. Todd, D.K. 1995. Groundwater Hydrology. Edisi ke-2. Singapore: John Wiley & Sons.