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All Journal Jurnal Mahasiswa Jurusan Teknik Pengairan Jurnal Teknik Pengairan: Journal of Water Resources Engineering Jurnal Teknik Sipil Civil and Environmental Science Journal (CIVENSE)
Lily Montarcih Limantara
Jurusan Teknik Pengairan Fakultas Teknik Universitas Brawijaya Malang.
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science

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Studi Optimasi Pengelolaan dan Pengembangan Sub Daerah Aliran Sungai (DAS) Lesti Kabupaten Malang Limantara, Lily Montarcih; Masrevaniah, Aniek; Subiyantoro, Eka Agus
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 1, No 2 (2010)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Kerusakan lingkungan yang semakin luas akibat kerusakan lahan yang signifikan telah menyebabkan penurunan daya dukung Daerah Aliran Sungai (DAS) terhadap terjadinya bahaya erosi dan banjir. Mengingat hal tersebut, akan semakin terasa perlunya pengembangan dan pengelolaan DAS secara optimal. Dan Sub DAS Lesti bagian hilir yang meliputi kecamatan Sumbermanjingwetan, Turen, Wajak, Bululawang, Gondanglegi, Pagelaran, Gedangan, Banturdan Pagak merupakan salah satu DAS yang memiliki permasalahan di atas. Oleh karena itu perlu adanya optimasi penggunaan lahan untuk mendapatkan besar debit dan erosi yang optimal. Pada studi ini dilakukan analisa hidrologi dan erosi menggunakan metode USLE masing-masing guna mendapatkan nilai debit limpasan dan laju erosi pada Sub DAS Lesti sebagai data eksisting. Dari nilai tersebut dibuat perumusan model matematika berupa kendala/batasan dan fungsi sasaran dengan variabel hutan, perkebunan, sawah/tegalan dan pemukiman. Pada optimasi ini digunakan bantuan program solver pada Microsoft Excel 2007. Hasil analisis optimasi dengan bantuan program solver pada Microsoft Excel 2007, diperoleh penggunaan lahan serta debit limpasan dan erosi optimal. Penggunaan lahan optimal dari analisis tersebut dibuat kendala/batasan baru guna mendapatkan kombinasi debit limpasan dan erosi optimal. Dengan 4 macam alternatif, dari keempat alternatif di tersebut kombinasi debit dan erosi optimal yang didasarkan pada kondisi sosial dan budaya masyarakat adalah alternatif 2 dengan nilai masing-masing sebesar 351,43 m3/dt dan 7.549.695,54 ton/thn.Kata kunci: daerah aliran sungai, debit limpasan, erosi, optimasi
Climate Changed Effect on Irrigated Water Supply at Segaran Malang, Indonesia Limantara, Lily Montarcih; Djunaedi, Djunaedi; Ibrahim, Mochammad
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 1, No 2 (2010)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

This paper studied the effect of climate change to optimization of irrigated water supply atSegaran Irrigation Area. Global climate exchange caused some effects to hydrological factorssuch as temperature, humidity, seasonal time exchange and the quantity of rainfall. These exchanges would give contribution exchange to the operation of water irrigation. The methodology consisted of optimization irrigated water supply with Simplex Linear Programmingfor two time series such as before and after climate exchange. Results can use as the pattern of allocating water supply at Segaran irrigation area, due to the effect of climate exchange. Global climate exchange did not cause irrigated water supply and crop intensity.Key words: climate exchange, irrigation water, linear programming
Analisa Ketersediaan dan Kebutuhan Air pada DAS Sampean Sari, Indra Kusuma; Limantara, Lily Montarcih; Priyantoro, Dwi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 2, No 1 (2011)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Perkembangan wilayah pada suatu daerah akan menyebabkan kebutuhan air terusmeningkat seiring dengan laju pertumbuhan penduduk. Pemenuhan kebutuhan pangan dan aktivitas penduduk selalu erat kaitannya dengan kebutuhan akan air. Tuntutan tersebut tidak dapat dihindari, tetapi haruslah diprediksi dan direncanakan pemanfaatan sebaik mungkin. Kecenderungan yang sering terjadi adalah adanya ketidakseimbangan antara ketersediaan dan kebutuhan air. Untuk mencapai keseimbangan antara kebutuhan air dan ketersediaan air di masa mendatang, diperlukan upaya pengkajian komponen-komponen kebutuhan air, serta efisiensi penggunaan air.Kebutuhan air domestik dan Non Domestik sebesar 50,93 lt/dt untuk saat ini, 68,34lt/dt untuk 2 tahun mendatang, 87,09 lt/dt untuk 5 tahun mendatang, 111,96 lt/dt untuk 10 tahun mendatang dan sebesar 160,06 lt/dt untuk 20 tahun mendatang. Kebutuhan air irigasitotal sebesar 37.305,7 lt/dt mengairi sawah seluas 36.180 ha. Kebutuhan air Industrisebesar 4,68 lt/dt untuk saat ini, 4,74 lt/dt untuk 2 tahun mendatang, 4,84 lt/dt untuk 5tahun mendatang, 5,04 lt/dt untuk 10 tahun mendatang dan sebesar 5,54 lt/dt untuk 20tahun mendatang. Kebutuhan air Perikanan sebesar 281,72 lt/dt untuk saat ini, 296,13 lt/dtuntuk 2 tahun mendatang, 319,92 lt/dt untuk 5 tahun mendatang, 366,52 lt/dt untuk 10 tahun mendatang dan sebesar 495,48 lt/dt untuk 20 tahun mendatang.Dari hasil perhitungan diatas daerah layanan yang mengalami defisit air pada saat ini : Pakem, Botolinggo, Tlogosari, Bondowoso, 2 tahun mendatang : Pakem, Botolinggo,Tlogosari, Bondowoso, 5 tahun mendatang : Pakem, Botolinggo, Tlogosari, Bondowoso,Tenggarang, Sukosari, 10 tahun mendatang : Pakem, Botolinggo, Tlogosari, Bondowoso,Tenggarang, Sukosari, Maesan, 20 tahun mendatang : Pakem, Botolinggo, Tlogosari, Bondowoso, Tenggarang, Sukosari, Maesan, Prajekan, Curahdami.Ketersediaan dan Kebutuhan air pada Das Sampean mengalami defisit pada beberapa daerah layanan yang pada kondisi 2,5,10 hinggga 20 mendatang semakin bertambah daerah layanan yang mengalami defisit, Kebutuhan air yang mendominasi penggunaan air permukaan di Das Sampean adalah kebutuhan air irigasi, pada kondisi di daerah studi penggunaan air untuk kebutuhan industri dan perikanan banyak menggunakan air dari saluran irigasi yang mengakibatkan berkurangnya kapasitas air yang masuk pada petak sawah. Keadaan ini ditunjang dengan belum dimanfaatkan dan minimnya saranabangunan air dari sumber-sumber air lainnya. Oleh sebab itu direkomendasikan agar dilakukan studi dan survey lebih lanjut dari aspek topografi, geologi, hidrologi untuk mengatasi penyediaan air pada daerah defisit, baik interkoneksi dari daerah surplus kedaerah defisit serta perlu dilakukan studi, survey dan investigasi lebih lanjut untuk mencarisumber air baru (bawah permukaan, permukaan) sebagai pemenuhan kebutuhan domestik dan non domestik.Kata kunci : Ketersediaan, Kebutuhan, Neraca Air.
Pola Penyediaan Air D.I. Tibunangka dengan Sumur Renteng pada Sistem Suplesi Renggung Kunaifi, Azwar Annas; Limantara, Lily Montarcih; Priyantoro, Dwi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 2, No 1 (2011)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

D.I. Tibunangka mempunyai luas layanan 2.284 ha yang terletak di Kabupatenlombok tengah Propinsi NTB. Pengaturan eksisting pemberian air yang ada di D.I.Tibunangka adalah pemberian air selama 5 hari pada setiap 20 hari. Akan tetapi karenapengaturan pemberian air yang ada tidak dilaksanakan dengan baik dan infrastrukturjaringan irigasi banyak mengalami kerusakan, intensitas tanam rerata yang terealisasihanya 175% dari rencana 208%.Perencanaan pola pemberian air yang dilakukan dengan pergiliran pemberian airdengan sistem golongan. D.I. Tibunangka dibagi kedalam 3 golongan yaitu hulu, tengah,dan hilir. Lalu dibagi lagi menjadi sub golongan yaitu hulu menjadi 3 golongan, tengah menjadi 2 golongan, dan hilir menjadi 3 golongan. Dari pengaturan pemberian air sistem golongan mampu meningkatkan intensitas tanam menjadi 219% atau mengalami peningkatan sebesar 44%. Sedangkan perencanaan sumur renteng dibuat dalam 2 skenarioyaitu skenario pertama, sumur langsung mengambil air dari saluran sekunder. Skenario kedua, selain sumur mengambil langsung dari saluran sekunder tetapi ada juga sumur yang dihubungkan dengan pipa secara seri untuk pengisiannya. Skenario pertama didapatkan waktu pengisian sebesar 4,7 hari dan skenario kedua sebesar 4,5 hari. Selanjutnya dipilih skenario yang kedua untuk penentuan penambahan intensitas tanam. Skenario kedua yang dioperasikan untuk mengairi tembakau pada musim kering, didapatkan luas layanan yang mampu disuplai sumur renteng sebesar 100,81ha atau kenaikan intensitas tanamnya menjadi 223,41%.. Selain berguna untuk pengairan pada musim kemarau, diharapkan adanya sumur renteng mampu memberikan nilai lebih untuk konservasi air dan tanah dilokasi studi.Kata kunci: Sistem Golongan, Sumur Renteng, dan Intensitas Tanam.
PENGARUH PERUBAHAN IKLIM TERHADAP OPTIMASI KETERSEDIAAN AIR DI IRIGASI WAY MITAL PROPINSI MALUKU Hukom, Edison; Limantara, Lily Montarcih; Andawayanti, Ussy
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 3, No 1 (2012)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Global climate change affects to temperature, relative humidity, solarradiation length, wind speed, rainfall and river discharge. Due to climate change the high of rainfall intensity impact on river discharge fluctuations in the wet anddry season. Floods and droughts as anatural event are more often occurred at this time. Waymital Irrigation area has a127 hectares command area consisting of the fourtertiary those are 7 hectares Kairatutertiary, 10 hectares Gembatertiary, 10 hectares Hatusuatertiary and 100 hectares way Mitaltertiary, therefore to deal with that extreme impact, required a systematically irrigation management plansin order to be still profitable, especially for farmers.The methodology used in the analysis of irrigation water availability optimization at Mital Way command area using the Simplex Linear Programming that will be obtained cropping area, discharge and maximum benefit of agricultural production.Based on the analysis results indicates that has occurred the climate change on Way mital command area in 2009 that is marked by a shifted in the rainy and dry seasons and increased the amount of annual rainfall. Increasing the amount of rainfall has an impact on the volume availability of water intake changes, before the climate change, the volume availability of water intheintake (cropping season) are MTI =699000 m3, MTII = 444 000 m3and MTIII =502 000 m3. While from the study result also showed that after the occurrence of climate change, volume of water available in the intake are MTI =715000 m3, MTII = 487000 m3and MTIII =537000 m3. Volume of water availability from the optimization of the existing cropping pattern at Way Mitalboth before and after climate change is still sufficient to water requirement for everycropping season and the difference inprofit is 418.875.000 rupiahs peryear which is obtained from agricultural production.Keywords: Climate Change, WaterAvailability, Linear Programming.
Rasionalisasi Jaringan Penakar Hujan Di Das Kedungsoko Kabupaten Nganjuk Rodhita, Muhamad; Limantara, Lily Montarcih; Dermawan, Very
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 3, No 2 (2012)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Kedungsoko River and its tributaries is located in Kediri and Nganjuk district. Kedungsoko river has approximate 416,54 km2 of watershed area number. Kedungsoko catchment area is affected by approximate 8 rain stations. There has not been studied theoretically about the optimum density and dispersal patterns of rainfall station networks that have been installed in the Kedungsoko watershed.Based on the results of assessment and analysis using Kagan-Rodda method, it was acquired 4 selected stations, while Kriging method obtained results of 8 selected stations that spreaded in Kedungsoko watershed. Relative error for design rainfall of Kagan-Rodda method is 1,906% and Kriging method is 2,802%. Relative error of hidrograf discharge unit for Kagan-Rodda is 38,53% and 19,83% for Kriging.Keywords: Rainfall station networks, Kagan-Rodda, Kriging
Kajian Kalibrasi Hidrograf Representatif Di Das Samiran Kabupaten Pamekasan Priombodo, Agus; Limantara, Lily Montarcih; Suhartanto, Ery
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 3, No 2 (2012)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Samiran watershed is including Semajid River and its tributaries has an approximate to 69,76 km2of number area. This watershed is located in Pamekasan distric, East Java. Samiran catchment area is affected by approximate to 5 rain stations scattered in the watershed. Has not been studied theoretically about the optimum density and dispersal patterns of their rainfall station networks have been installed and comparative studied in hidrograf in the Samiran watershed. Based on the results of the assessment and analysis by using Kagan-Rodda method, it was acquired 3 selected stations, while the Kriging method obtained results 5 selected stations that spreads in the Samiran watershed. Relative error for the design rainfall of Kagan-Rodda method was 14,53 and 13,96 for Kriging method.Ordinat control to get runoff area of 1 mm from watershed is19,378 m3/sec/year by using the method of Collins. It was obtained the average time to peak was 2 hours for GAMA I, peak discharge is 300 m3/sec with a time of peak discharge 14 hour basis. the Limantara hydrograf the average time to peak was 2 hours, peak discharge is 170 m3/sec with a time of peak discharge 8 hour basis. the hydrograf of observatian have the average time to peak at 8 hours, peak discharge is 4,27 m3/sec with a time of peak discharge 11 hour basis.Keywords: Rainfall station networks, Kagan-Rodda, Kriging, Hidrograf
Studi Optimasi Distribusi Air Irigasi Di Daerah Irigasi Lodoyo Ekorini, Lucky Dyah; Limantara, Lily Montarcih; Suhartanto, Ery
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Lodoyo Irrigation Area covers two districts namely Blitar and Tulungagung. Irrigation Area Lodoyo itself has intakes in Dam Wlingi in Blitar. Wlingi dam located on the Brantas River in the Village District Jegu Sutojayan Blitar ± 30 km in the downstream dam Sutami. The expected benefits and purpose of the construction of this dam is Wlingi Raya for the supply of irrigation water and generate hydropower. Irrigated area has a wide DI Lodoyo raw rice 12,219 ha, comprising 12 204 irrigation and 15 ha for ponds. Types of crops grown in the area of DI Lodoyo for each growing season are: (1) rainy season, planting season I: Rice - Crops; (2) Dry Season I, II Planting season: Rice - Crops; (3) Dry Season II, Planting season III: Rice - Crop. While the availability of discharge in irrigated areas Lodoyo is based on the availability of existing discharge in the Brantas River, in this case is Wlingi Reservoir catchment. Based on the results of the optimization analysis conducted extensive rice plants obtained optimum results: in dry conditions 4,041 ha, 4,242 ha under normal conditions;, in wet conditions: 4,682 ha. While the results of the maximum benefit in dry conditions Rp. 58,780,404,629.00; under normal conditions Rp. 59,792,367,463.00;, in wet conditions Rp. 62,009,795,069.00. To obtain the results of the sensitivity analysis results are sensitive land: in dry conditions between 2844-15359 ha; under normal conditions between 3051-15999 ha while in wet conditions between 305117400 ha.Keywords : Irrigation, Optimization, Sensitivity
Study On The Value Of A Medium Reservoir Storage Capacity (Case Study: Karalloe Reservoir) Soetopo, Widandi; Limantara, Lily Montarcih; Pagatiku, Agustina
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 10, No 1 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (276.673 KB) | DOI: 10.21776/ub.pengairan.2019.010.01.6

Abstract

In this article, the value of storage capacity of a medium sized Karalloe reservoir is discussed. Together with an uncontrolled weir, the Karalloe reservoir is supplying an irrigation area. The purpose of the study is to estimate the value of reservoir storage capacity at the various storage states and at different dependable inflow levels. The Linear Programming model is used to optimize the irrigation benefit for various storage capacity and various dependable inflow levels. The results are used to estimate the values of storage capacity at various conditions. The results show that for inflow of the dry year, there is no value for the additional storage capacity. But for inflow of the wetter years, there are significant values for adding more storage capacity
Studi Ketersediaan Airtanah Guna Menentukan Pola Pemberian Air Untuk Kebutuhan Irigasi Di Kecamatan Mojosari Kabupaten Mojokerto Hariyadi, Achmad; Bisri, Mohammad; Limantara, Lily Montarcih; Sayekti, Rini Wahyu
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Groundwater is currently one of the alternative to meet the needs of irrigation water. In the Mojosari District there is no surface water irrigation system and there are 7 production wells with 261.33 hectares of agricultural land. How the performance of wells producing seen from the C, Fd and T with wells test and aquifer test. How the pattern schedule of groundwater with rotation method. The aim of this study to plan the pattern schedule of water delivery system with reference to the of the existing plant pattern in Mojosari District.Based on the availability of existing groundwater on the 7 production wells, the first DI Menanggal SDMJ 113 Q = 14 l / dt, A = 20ha (2 blocks), Q planting I 15.39 l / dt (91%), continuously, Q planting II 46.77 l / dt and III Q = 39.76 l / dt (31% and 35%), rotation. Second DI Belahan Tengah SDMJ 521.410 Q = 28 l / dt, A = 92.67 ha (4 blocks), Q planting I 71.31 l / dt, II Q = 212.09 l / dt and III Q = 184.23 l / dt (39%, 13% and 15%), rotationally. Third DI Mojosulur SDMJ 473, 461 Q = 32 l / sec), A = 57ha (4 blocks), Q planting I 43.86 l / dt (73%), rotationally, cropping Q II 130.45 l / dt and III Q = 113.32 l / dt (25% and 28%), rotationally. Fourth source DI Sumber Tanggul SDMJ 283 Q = 12 l / s, A = 50 ha (4 blocks), Q planting I 38.47 l / dt (69%), rotationally, cropping Q II 114.43 l / dt and III Q = 99.40 l / dt (23% and 27%), rotationally. Fifth DI Randubango SDMJ 551 Q = 30 l / s, A = 39 ha (3 blocks), Q planting I 30.01 l / sec (100%), continuously, Q planting II 89.26 l / dt and III Q = 77.53 l / dt (34% and 39%), rotationally. Based on the 7 wells discharge production, the availability of groundwater discharge is sufficient for the needs of irrigation in the district of Mojosari with rotation method.Keywords: existing discharge, wells test, aquifers test, water delivery systems, rotation.
Co-Authors A.A. Ketut Agung Cahyawan W Achmad Hariyadi Adiputra, Dhimas Satibi Agung Rahmadi Agus Priombodo Alamsyah, Muhammad Bayu Ambarwati, Arum Nurwidya Aniek Masrevaniah Arfiyanti, Anandini Fatma Arif Rahmad Darmawan Azwar Annas Kunaifi Chandrasasi, Dian Dian Chandrasasi Dian Sisinggih Djunaedi Djunaedi Donny Harisuseno Dwi Priyantoro Edison Hukom Eka Agus Subiyantoro Endang Purwati RN Ery Suhartanto Fauziyah, Fauziyah Ferina, Marisa Ayu Haris Djafar, Haris Harisuseno, Donny Hermawan, Oksa Ega Ikrar Hanggara, Ikrar Ilham, Rendy Khoirul Indra Kusuma Sari INDRIANI, YULIA Islamiyanto, Yudho Putra Juni, Riska Wulan Lalu Sigar Canggih Ranesa, Lalu Sigar Canggih Lenny Febriana Ideawati, Lenny Febriana Lucky Dyah Ekorini M. Bisri Mahendra, Hardiman Mochammad Ibrahim Moh. Sholichin Mohammad Bisri Mohammad Sholichin Muhamad Rodhita Muhammad Ilham nalurita, sari Nuf'a, Hilma Nurdiyanto Nurdiyanto, Nurdiyanto nurfitriani, Alvina nurfitriani, Alvina Pagatiku, Agustina Pitojo Tri Juwono Putra, Whima Regianto Qomarul Huda, Qomarul Rachma, Siti Talitha Rahmah Dara Lufira ramdhani, fitroh Rini Wahyu Sayekti Rini, Firda Agustiya Riwin Andono Rossy Tamaya, Hana Arum Runi Asmaranto Semuel J. Ch. Ahab, Semuel J. Ch. Soetopo, Widandi Sri Wahyuni Suhardjono Suhardjono Sulianto Sulianto Suwanto Marsudi Tamaya, Hana Arum Rossy Tri Budi Prayogo, Tri Budi Tyas Daru, Tyas Ussy Andawayanti Very Dermawan Wahyuni, Sri Wahyuni, Sri Whima Regianto Putra Widandi Soetopo