ANALISIS NERACA AIR SEBAGAI UPAYA PENINGKATAN PEMANFAATAN AIR DI DAERAH ALIRAN SUNGAI MARTAPURA, PROVINSI KALIMANTAN SELATAN
The water balance in Martapura watershed is calculated to maximise water utilization. The Martapura Watershed is located in Banjar Regency and Banjarmasin City. The utilization of Martapura River are for 6 irrigation area, 641 Ha fish ponds area, 25 Swamp Irrigation Areas, 7 intake for raw water, 8 intakes for industry and river maintenance using Q95%.Rainfall runoff calculation using the FJ Mock method. The Martapura watershed is divided into 10 sub-watersheds (sub-watershed A to sub-watershed J). Sub-watershed A is Riam Kanan Dam, so it uses outflow reservoir as inflow discharge. the average reservoir outflow discharge is 39,52 m3/s, except for the period from November I to December II. Reliable discharge calculation of water availability for other sub-watersheds uses flow duration curve method, for wet year discharge (Q20%), normal year discharge (Q50%) and dry year discharge (Q80%). Calculation of water balance using 2 type water demand, current water demand and potential increasing water demand. There are 3 type of water availability that used in this calculation, dry year discharge, wet year and normal year. The water balance is calculated for each sub-watershed and and followed with the calculation for the total Martapura watershed. The results of the calculation of the dry year water balance in total for one watershed are still in surplus, but the result calculation for each sub-watershed show that there is a deficit in sub-watershed B in November I – December II, due to the small discharge from Riam Kanan Reservoir. In dry years, raw and industrial water flow cannot be increased, but irrigation can be increased in the second planting season, covering an area of 2.065 ha in DI and 5.416 ha in DIR. The calculation of the water balance in a normal year, in total the Martapura watershed is still in surplus, but the result calculation for each sub-watershed shows that there is a deficit in sub-watershed B in November I - December II. In normal year discharge, raw water can still be increased by 1,11 m3/sec and irrigation area increase in planting season I, 328 Ha and 2.912 Ha in planting season II, while in swamp irrigation area there is an increase in area of 648 Ha in planting season I and 5.416 Ha in planting season II. The results of the calculation of the wet year water balance were in total surplus, but each sub-watershed experienced a deficit in sub-watershed B in November I – December II. For this wet year, the raw water can be increased by 2,76 m3/sec for irrigation area, there is an increase of 328 Ha in planting season I and 3.862 in planting season II, while in swamp irrigation area there is an increase of 648 Ha in planting season I and 5.416 Ha in planting season II.
 CV Karya Perdana Konsultan, “Penyusunan / Updating Neraca Air WS Barito,” Banjarmasin, 2021.
 T. Sudinda, “Analisis Neraca Air Daerah Aliran Sungai Cisadane,” J. Rekayasa Lingkung., vol. 14, no. 1, pp. 60–75, 2021, doi: 10.29122/jrl.v14i1.4917.
 R. K. Ilham, L. M. Limantara, and S. Marsudi, “Analisa Neraca Air Daerah Aliran Sungai Gandong,” J. Mhs. Jur. Tek. Pengair., vol. I, no. 2, 2018.
 K. S. Sisvanto, T. Mananoma, and J. S. F. Sumarauw, “Analisis Neraca Air Sungai Alo di Titik Bendung Alo Kabupaten Gorontalo,” J. Sipil Stat., vol. 8, no. 4, pp. 555–564, 2020, [Online]. Available: https://ejournal.unsrat.ac.id/index.php/jss/article/view/29976.
 N. Kadek, S. Dewi, I. B. Suryatmaja, and K. Kurniari, “Analisis Neraca Air Daerah Irigasi Tinjak Menjangan Pada Daerah Aliran Sungai ( Das ) Tukad Sungi Di Kabupaten Tabanan,” J. Ilm. Tek. UNMAS Denpasar, vol. 1, no. 2, pp. 81–85, 2021, [Online]. Available: https://e-journal.unmas.ac.id/index.php/jitumas/article/view/2974.
 L. M. Limantara, Rekayasa Hidrologi, Edisi Revi. Malang, 2018.
 F. Hanafi, “Analisis Neraca Air Di Das Kupang Dan Sengkarang,” RedCarpetStudio, Yogyakarta, 2017. [Online]. Available: https://www.researchgate.net/publication/319164460_ANALISIS_NERACA_AIR_DI_DAS_KUPANG_DAN_SENGKARANG/link/5996687fa6fdcc35c6bff56e/download.
 I. Taufik, “Analisis Neraca Air Permukaan DAS Ciliman,” J. Ilmu Lingkung., vol. 17, no. 3, p. 452, 2019, doi: 10.14710/jil.17.3.452-464.
 D. B. Irianto and K. F. Sulistyani, “Neraca Air Das Nangalili (Water Balance Analysis in Nangalili Watershed),” Reka Buana J. Ilm. Tek. Sipil …, vol. 3, no. 1, pp. 1–6, 2018, [Online]. Available: https://jurnal.unitri.ac.id/index.php/rekabuana/article/view/916.
 S. Mopangga, “Analisis Neraca Air Daerah Aliran Sungai Bolango,” RADIAL J. Perad. Sains, Rekayasa dan Teknol., vol. 7, no. 2, pp. 162–171, 2020, doi: 10.37971/radial.v7i2.191.
 A. Nurkholis et al., “ANALISIS NERACA AIR DAS SEMBUNG, KABUPATEN SLEMAN, DIY (Ketersediaan Air, Kebutuhan Air, Kekritisan Air),” Yogyakarta, 2018. doi: 10.31227/osf.io/ymhkg.
 Pusat Pendidikan dan Pelatihan, “Hidrologi, Ketersediaan dan Kebutuhan Air,” in Modul 5, 2018.
Copyright (c) 2022 Jurnal Qua Teknika
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Copyright on any article is retained by the author(s).
- Author grant the journal, right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work’s authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal’s published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
- The article and any associated published material is distributed under the Creative Commons Attribution-ShareAlike 4.0 International License