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All Journal Didaktik : Jurnal Ilmiah PGSD STKIP Subang Jurnal Bangunan Konstruksi
Arsyad
Universitas Muhammadiyah Enrekang
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Engineering Transportation

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Studi Perencanaan dan Pengembangan Jaringan Irigasi Tambak Daerah Sajoanging Kabupaten Wajo Arsyad; Suci fatmawati Marzuki; Muflihah Mantasa; Sry Wahyuni R; Musdalifah S; Zainal Arifin Halim
Jurnal Bangunan Konstruksi Vol 4 No 1 (2026): Barakka - Jurnal Bangunan Konstruksi
Publisher : PSTS FT UIM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63877/jbk.v4i1.253

Abstract

Pengembangan jaringan irigasi tambak di daerah pasang surut berperan penting dalam meningkatkan produktivitas budidaya perikanan. Penelitian ini bertujuan merencanakan jaringan irigasi tambak di Daerah Sajoanging, Kabupaten Wajo, untuk mengubah sistem budidaya bandeng dari tradisional menjadi semi intensif. Metode yang digunakan meliputi analisis pasang surut dengan metode Admiralty, perhitungan kebutuhan air irigasi tambak berdasarkan evaporasi, perkolasi, dan curah hujan efektif, serta perencanaan dimensi saluran pembawa dan pembuang menggunakan persamaan Strikler. Hasil penelitian menunjukkan elevasi dasar tambak rata-rata -0,65 m dan elevasi muka air tambak +0,55 m, yang berada di antara elevasi surut rencana (-1,00 m) dan elevasi pasang rencana (+1,03 m), sehingga memungkinkan sistem pemberian dan pembuangan air secara gravitasi. Kebutuhan air irigasi total untuk budidaya bandeng sebesar 8,69 lt/dt/ha, terdiri atas kebutuhan air asin 8,14 lt/dt/ha dan air tawar pencampur 0,55 lt/dt/ha. Perencanaan ini diharapkan meningkatkan frekuensi panen dari satu kali menjadi dua hingga tiga kali per tahun serta meningkatkan kesejahteraan petani tambak.
EVALUASI PERENCANAAN SALURAN PRIMER IRIGASI LAHAN PERTANIAN DUSUN GARUTU DESA BUTTU BATU KECAMATAN ENREKANG KABUPATEN ENREKANG Marheni; Arsyad; Saleh
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 03 (2026): Volume 12 Nomer 03, September 2026 Publication
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i03.18409

Abstract

The availability of irrigation water is an essential factor in increasing agricultural productivity and supporting sustainable farming activities. Garutu Hamlet, Buttu Batu Village, Enrekang District, Enrekang Regency has an agricultural area of 22.08 hectares; however, the distribution of irrigation water has not been optimal. Therefore, the planning of a primary irrigation canal is required to ensure an effective and equitable water supply.The data consisted of primary data obtained from field surveys and existing canal measurements, as well as secondary data including rainfall records from 2015–2024, climatological data, topographic maps, and agricultural land area. The analyses included the determination of design rainfall (R80), dependable discharge (Q80), Net Field Requirement (NFR), and the design of the primary irrigation canal using the Manning equation.The results indicate that the design rainfall (R80) is 312.48 mm, the average dependable discharge (Q80) is 0.469 m³/s, and the maximum irrigation water requirement is 0.138 m³/s with an irrigation efficiency of 61.2%. Based on the hydraulic analysis, the proposed trapezoidal primary irrigation canal has a bottom width of 0.80 m, a flow depth of 0.55 m, a freeboard height of 0.60 m, a total canal depth of 1.15 m, a side slope of 1:1, and a longitudinal bed slope of 0.021. The designed canal has a discharge capacity of 0.543 m³/s with a flow velocity of 0.73 m/s, indicating that it is capable of safely conveying the required irrigation discharge throughout the year. Therefore, the proposed canal dimensions satisfy the technical design requirements and are expected to improve water distribution efficiency and support increased agricultural productivity in Garutu Hamlet.
Co-Authors Marheni Muflihah Mantasa Musdalifah S Saleh Sry Wahyuni R Suci Fatmawati Marzuki Zainal Arifin Halim