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Tinjauan Debit Andalan Untuk Irigasi Di Kecamatan Sungai Tabuk Kabupaten Banjar Fakhrurrazi Fakhrurrazi; Herliyani Farial Agoes; Desy Anggeriyani
Jurnal Teknik Sipil Vol 2 No 1 (2018): Jurnal Gradasi Teknik Sipil - Juni 2018
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v2i1.537

Abstract

Adequate water availability in irrigation systems is an important factor in the success of irrigation agriculture, including Sungai Tabuk irrigation system which land is planted with rice paddy, fields rice paddy and crops. The availability of water in Kecamatan Tabuk River was calculated by dependable flow analysis using flow data from Mock method calculation. The model of rainfall-flow relationship with the monthly interval used was Mock Method, and 80% dependable flow was used to calculate the availability of the irrigation water. Based on the rainfall and evapotranspiration data (Mock method) in irrigation system of Sungai Tabuk area, the average flow per year of 5.758 m3 / sec obtained. With the highest flow occurred in March of 9.405m3 / sec and the lowest flow was in September at 1.616 m3 / sec. The 80% dependable flow was an average of 3.504 m3 / sec with the highest 80% of the highest dependable flow recorded in February of 7.37 m3 / sec and the lowest flow was in October which 80% flow was 0.24 m3 / sec. The calculation of irrigation water needed was based on KP-01. The calculation results showed that the average water demand was 2.690 m3 / sec with the beginning of planting on December I by using ordinary rice-ordinary rice planting pattern; while the average water demand for crops was 0.029 m3 / sec. From the analysis, the availability of irrigation water of Sungai Tabuk (average value of 3,504 m3 / sec) can fulfil the irrigation water requirement (average value of 2,690 + 0,029 = 2,719 m3 / second).
Analisis Ketersediaan Dan Kebutuhan Air Irigasi Pada Petak Sawah Di Daerah Irigasi Rawa Kecamatan Mandastana Andri Iriansyah; Fitriani Hayati; Fakhrurrazi Fakhrurrazi
Jurnal Teknik Sipil Vol 3 No 1 (2019): Jurnal Gradasi Teknik Sipil - Juni 2019
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v3i1.730

Abstract

Kabupaten Barito Kuala adalah salah satu pemerintah kabupaten yang berbatasan dengan provinsi Kalimantan Tengah dan Kalimantan Selatan, Indonesia. Dalam musim hujan pada waktu pasang air Sungai Kapuas, Sungai Barito dan air kiriman dari Kabupaten Banjar yang berbatasan langsung dengan Kecamatan Mandastana dapat membanjiri sebagian besar wilayah ini dan mengakibatkan permukaan tanah tergenang terus menerus. Masalah yang dialami oleh persawahaan di Kecamatan Mandastana adalah masalah yang mempengaruhi tata kelola air terkait saluran irigasi yang ada di pertanian itu sendiri mengalami pasang surut air, yang bergerak naik turun yang disebabkan oleh pasang air pada Sungai Barito dan Sungai Kapuas, dimana pada saat pasang area persawahan mengalami kelebihan air. Metode perhitungan yang digunakan dalam penelitian ini adalah metode mock untuk perhitungan debit andalan dan neraca air dan metode penman dan standar KP-01 untuk perhitungan kebutuhan air. Berdasarkan analisis neraca air (ketersediaan air dari curah hujan dikurang kebutuhan air disawah kondisi eksisting) didapat hasil 3,017 m3/detik, sehingga pada petak sawah terjadi kelebihan air, jadi apabila ingin dilakukan perluasan lahan persawahan ketersediaan air masih mencukupi untuk mengairi air di sawah. Abstract Barito Kuala Regency is one of the district governments that borders the provinces of Central Kalimantan and South Kalimantan, Indonesia. During the rainy season at the time of the tide of the Kapuas River, the Barito River and consignment water from Banjar Regency, which is directly adjacent to Mandastana District, can overwhelm most of this area and result in continuous inundation of the land surface. The problem experienced by the field in Mandastana Subdistrict is a problem that affects water management related to irrigation channels in agriculture itself which experiences tidal water, which moves up and down caused by tides on the Barito River and Kapuas River, where at the time of tide the area rice fields experience excess water. The calculation method used in this study is the mock method for calculating the mainstay discharge and water balance and penman method and the KP-01 standard for calculating water requirements. Based on the analysis of water balance (availability of water from rainfall minus water requirements under existing conditions) obtained results of 3.017 m3 / sec, so that the paddy fields occur excess water, so if you want to expand rice fields the availability of water is still sufficient to irrigate water in the fields.
TINJAUAN DEBIT KEBUTUHAN AIR SALURAN DAERAH IRIGASI TELAGA LANGSAT BERDASARKAN STANDAR PERATURAN IRIGASI (KP) TAHUN 2013 Adriani Muhlis; Fakhrurrazi Fakhrurrazi; Abdul Khaliq
Jurnal Teknik Sipil Vol 4 No 2 (2020): Jurnal Gradasi Teknik Sipil - Desember 2020
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v4i2.988

Abstract

Daerah Irigasi Telaga Langsat Kabupaten Hulu Sungai Selatan dengan luas areal 3044,8 Ha, difungsikan untuk dapat mengairi persawahan pertanian dengan irigasi teknis, dalam beberapa tahun terakhir perlu adanya peninjauan kembali pendistribusian air yang hanya cukup berfungsi tapi kurang optimal. Apalagi dari pembangunannya sejak 1989 sampai sekarang sudah berumur lebih dari 30 tahun, dengan menggunakan Kriteria Perencanaan (KP) Tahun 1986. Tujuan penelitian adalah modifikasi dan menghitung ulang debit kebutuhan air agar dapat berfungsi optimal dengan berlandaskan Kriteria Perencanaan Irigasi dalam Peraturan Dirjen SDA KemenPU Tahun 2013, dengan metode penelitian meliputi data primer dan sekunder serta pengolahan data beracuan peraturan tersebut. Hasil didapat debit eksisting 5397 liter/detik dan debit hasil modifikasi sebesar 5652,49 liter/detik, sehingga terdapat selisih kurang debit sebesar 255,49 liter/det. Luasan petak tersier selayaknya diperkecil, idealnya 50 ha, dalam keadaan tertentu dapat ditolelir sampai 75 ha, yang disesuaikan dengan kondisi topografi agar pelaksanaan operasi dan pemeliharaan lebih mudah. Ada beberapa petak tersier dilakukan simulasi modifikasi, dengan memecah luasan petak tersier semula dan menambahkan petak tersier baru yang memungkinkan untuk pembagian secara merata dan terpenuhi sesuai kebutuhan. Abstract Telaga Langsat Irrigation Area, Kabupaten Hulu Sungai Selatan with an area of 3044.8 Ha, is functioned to be able to irrigate agricultural rice fields with technical irrigation, in recent years there needs to be a review of the distribution of water which is only functioning but not optimal, base on data of the left Telaga Langsat, it is only served 1264,45 Ha in a discharge is 2,231 m3/sec (Ikrimathus. S, 2013).. Moreover, from its development since 1989 until now it is more than 30 years old, using the 1986 Planning Criteria (KP). The aim of this research is to modify and recalculate the discharge of water needs based on the Irrigation Regulatory Standard (KP) of 2013, with research methods including primary and secondary data as well as data processing based on these regulations. The results show that the existing discharge is 5397 liters / second and the modified discharge is 5652.49 liters / second, so there is a difference of 255.49 liters / sec. The area of tertiary compartments should be reduced, ideally 50 ha, in certain circumstances can be tolerated up to 75 ha, which is adjusted to topographic conditions so that the implementation of operation and maintenance is easier. There are several tertiary plots that have been simulated with modification, by dividing the area of the original tertiary plot and adding new tertiary plots that allow for even distribution and fulfillment as needed
Co-Authors Abdul Khaliq Adriani Muhlis Andri Iriansyah Desy Anggeriyani Fitriani Hayati Herliyani Farial Agoes