Garuda - Garba Rujukan Digital

Studi Penentuan Skala Prioritas Berdasarkan Kinerja Jaringan Irigasi Pada Jaringan Irigasi Batujai, Gde Bongoh, Dan Sidemen Di Kabupaten Lombok Tengah Supriyono, Supriyono; Rispiningtati, Rispiningtati; Montarcih, Lily; Sayekti, Rini Wahyu
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.703 KB)

West Nusa Tenggara Province is a national food barn, and it is not surprising because of most people in this province are working in agriculture sector. The Ministry of Public Work, through its Public Work Official at West Nusa Tenggara Province and also River Region Bureau of West Nusa Tenggara I, has allocated the budget to finance the irrigation network every year in order to improve agriculture production. This research is a case study of the performance of the irrigation network. The performance is measured to help the determination of the priority scale of the management of irrigation network. The study area is located at irrigation regions of Batujai, Gde Bongoh and Sidemen. These three regions are under the work region of Water Official of Central Lombok District. Batujai irrigation network has 3,315 ha wide with water sufficiency rate (Factor K) of 58.33 %. Gde Bongoh irrigation network has 2,644 ha wide with water sufficiency rate of 66.67 %. Sidemen irrigation network has 3,315 ha wide with water sufficiency rate of 95.83 %. The assessment methods are based on The Decree of The Minister of Public Work No.32/PRT/M/2007. Result of the assessment indicates that Batujai and Gde Bongoh irrigation network are in low performance category with the point 65,67% and 67,60% respectively.Therefore that need improvement on the area of increase the field of personnel management and organizational management of Farmer Water User Association (P3A). Whereas Sidemen irrigation network is in good performance category with the point of 73.68 %.Keywords: Priority Scale, Factor K, Water Sufficiency, Irrigation Performance

Model-Model Pembangkitan Data Sintetis Untuk Curah Hujan Harian Di Wilayah Brantas Tengah Soetopo, Widandi; Limantara, Lily Montarcih; Sayekti, Rini Wahyu; Purwati, Endang; Chandrasasi, Dian; Ilham, Muhammad; Rahmadi, Agung
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 6, No 1 (2015)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.741 KB)

This research is for finding the suitable synthetic daily rainfall generating model in the Middle Brantas River Basin - East Java. There are 7 models being considered, 4 single-site models, (1) the two-part, (2) the transition probability matrix, (3) the resampling, and (4) the time series, and 3 multisite models, (5) the conditional, (6) the extension of single site Markov chain, and (7) the random cascade. All time-series produced by the models are then tested statistically. The results show that the differences between the historial time series and the synthetical time series are not too significant. It turn out that the synthetic time series of multisite models are better than the synthetic time series of single-site models.Keywords: generating model, synthetic data, daily rainfall.

Studi Evaluasi Kualitas Dan Status Trofik Air Waduk Selorejo Akibat Erupsi Gunung Kelud Untuk Budidaya Perikanan Sayekti, Rini Wahyu; Yuliani, Emma; Bisri, Mohammad; Juwono, Pitojo Tri; Prasetyorini, Linda; Sonia, Fauzia; Putri, Ayu Pratama
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 6, No 1 (2015)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (654.69 KB)

Selorejo dam in Malang regency has been used as a water storage and for freshwater fishery. On February 13 th 2014, Mount Kelud was erupted and produced volcanic ash which fell into the reservoir and caused an imbalanced water quality.The research was conducted in order to (a) observe a comparison between field measurement (temperature, turbidity, DO, pH, ammonia, nitrite, nitrate, total-P, Cu, Zn, Pb, Cr, and silica) and water quality standard in both upstream and middle station,(b) to determine time interval needed by each parameter to meet permitted value for freshwater fishery, (c) to determine water quality status using Pollution Index method, (d) to determine main contributors to the water pollution, (e) to determine trophic status index of Selorejo dam prior to and after the eruption, and (f) to analyze trophic status index fluctuation and pollution load capacity after the eruption.Method that was used to determine water quality status was Pollution Index. Trophic status index determined by comparing trophic status index standard on PerMenLH tahun 2009 with total-P, NO3N, chlorophyll a, and water clarity.The result from this research shows (a) before eruption, 40% of field measurement in upstream station and 28% of field measurement in middle station do not meet the standard values required. After eruption, 31% of field measurement in upstream station and 36% of field measurement in middle station do not meet the standard values required, (b) time interval needed for each parameters to meet permitted values are 111 days (pH and nitrate), 71 days (DO), 54 days (turbidity), while total-P and silica have not meet the required values up to the end of observation period, (c) water quality status in Selorejo dam on both stations are â€œLightly pollutedâ€, before and after the eruption of Mount Kelud, (d) main contributors to the water pollution on upstream station are total-P and nitrate. On middle station, the main contributors are total-P, silica, and nitrate, (e) Trophic status index of Selorejo dam is â€œhypereutrophicâ€ for chlorophyll a, (f) pollution load capacity of Selorejo dam for total-P is 12.072, 58 kg P/year and has to be increased 69, 61% to 39.722, 33 kg P/year to lower trophic status index to â€œOligotrophicâ€.Keywords: Water quality, water quality status, trophic status index, load capacity index, pollution index

Studi Penentuan Status Mutu Air Di Sungai Surabaya Untuk Keperluan Bahan Baku Air Minum Citri Priyono, Thesa Septine; Yuliani, Emma; Sayekti, Rini Wahyu
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 1 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1692.466 KB)

The water of Surabaya River is the raw material of drinking water and one of water supply source for PDAM Surabaya. Over the last ten years pollution in Surabaya River is worsened. Pollution not only from domestic waste but also from existing industries around Surabaya River. This study aimed to determine the status of water quality in the Surabaya River. Determination water quality status in the Surabaya River conducted to closest monitoring station to the PDAM Waste Water Treatment Karangpilang. They are Cangkir Tambangan Monitoring Station, Bambe Tambangan Monitoring Stations, and Karangpilang Monitoring Station. The method used for the determination of water quality status are STORET and Pollution Index Method. Analysis of water quality status determination aims to determine the level of impurity in the nearest monitoring station. From the research it can be concluded, water quality status in Surabaya River is 49.44% heavily polluted by STORET for grade two. While 100% is being polluted by Pollution Index Method for grade two.Keywords: Water Quality Status, STORET, Pollution Index Method, Surabaya River

STUDI PENENTUAN SKALA PRIORITAS PENINGKATAN KINERJA JARINGAN IRIGASI PADA DAERAH IRIGASI BODOR KABUPATEN NGANJUK Utaya Kusuma, Olvi Pamadya; Rispiningtati, Rispiningtati; Sayekti, Rini Wahyu
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 3, No 1 (2012)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1594.775 KB)

Kabupaten Nganjuk merupakan daerah agraris, dimana sebagian besar penduduknya bekerja pada sektor pertanian. Pemerintah Kabupaten Nganjuk dalam hal ini adalah Dinas Pekerjaan Umum Pengairan setiap tahun, dalam pengalokasian anggaran untuk biaya jaringan irigasi dalam upaya peningkatan produksi pertanian terus mengalami peningkatan. Hal ini disebabkan karena meningkatnya Anggaran Pendapatan dan Belanja Daerah (APBD) . Dalam penentuan alokasi anggaran suatu kegiatan khususnya jaringan irigasi antara lain harus mempertimbangkan juga kinerja pada aspek kondisi prasarana fisik jaringan dan aspek penunjang yang terdiri dari produktifitas tanam, Sarana Penunjang, Organisasi Personalia, Dokumentasi, Petani Pemakai Air. Sebagai salah satu studi kasus dalam penentuan kinerja jaringan irigasi dalam hal ini penentuan skala prioritas penanganan maka diambil lokasi studi adalah di Daerah Irigasi Bodor yang berada pada Wilayah Kerja UPTD Dinas Pengairan Pace kabupaten Nganjuk dengan luas baku sawah 1886 ha .Pada Daerah Irigasi Bodor mempunyai tingkat kecukupan air sesuai dengan pola pemberian air eksisting pada Jaringan Irigasi Mlilir dengan luas areal tanam 795 ha mempunyai tingkat kecukupan air 55,55% , Jaringan Irigasi Ngrambe Kanan dengan luas areal tanam 112 ha mempunyai tingkat kecukupan air 91,67%, Jaringan Irigasi Ngrambe Kiri dengan luas areal tanam 292 ha mempunyai tingkat kecukupan air 55,55%, Jaringan Irigasi Banaran Kanan dengan luas areal tanam 174 ha mempunyai tingkat kecukupan air 50,00%, Jaringan Irigasi Banaran Kiri dengan luas areal tanam 513 ha mempunyai tingkat kecukupan air 55,55% dalam satu periode tanam.Penentuan Kinerja Jaringan irigasi pada Daerah Irigasi Bodor ditinjau dari aspek prasarana fisik, produktifitas tanam, sarana penunjang, organisasi personalia, dokumentasi, P3A dengan penilaian yang didasarkan pada Peraturan Menteri Pekerjaan Umum no 32/PRT/M/2007 tentang Pedoman Operasi dan Pemeliharaan Jaringan Irigasi diperoleh Jaringan Irigasi Mlilir 74,07 dengan kriteria kinerja baik, Jaringan Irigasi Ngrambe Kanan 79,14 dengan kriteria kinerja baik, Jaringan Irigasi Ngrambe Kiri 76,85 dengan kriteria kinerja baik, Jaringan Irigasi Banaran Kanan 74,51 dengan kriteria kinerja baik, Jaringan Irigasi Banaran Kiri 77,42 dengan kriteria kinerja baik. Penentuan skala prioritas berdasarkan evaluasi Faktor Indeks Kinerja maka ditentukan pada aspek fisik Jaringan Irigasi Mlilir dengan nilai prosentase 32,17 sebagai skala prioritas penanganan yang pertama, selanjutnya Jaringan Irigasi Banaran Kanan, Jaringan Irigasi Ngrambe Kanan, Jaringan Irigasi Ngrambe Kiri, dan Jaringan Irigasi Banaran Kiri.Kata kunci: Tingkat kecukupan air,kinerja irigasi,skala prioritas.

Status Trofik Dan Daya Tampung Beban Pencemaran Waduk Sutami Juantari, Gilang Y.; Sayekti, Rini Wahyu; Harisuseno, Donny
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 1 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (825.576 KB)

Sutami reservoir water quality declined due to the high character of organic waste disposal. This degradation is attributed by contamination due to natural erosion and agricultural waste, is also due to the entry of domestic waste (household) and industrial waste in upstream reservoirs Sutami. The addition of organic and inorganic materials in the form of waste into the reservoir in addition to changing the chemical composition of water, also affects the biological properties of these waters.The purpose of this study was to determine the load capacity of pollution that occurred in the reservoir Sutami and trophic status based on the Regulation of the Minister of Environment No. 28 of 2009.The study was conducted in the reservoir Sutami using primary and secondary data. Sampling locations in the central part of the reservoir at a depth of 0.3 m and 5 m and the lower reaches of the reservoir at a depth of 0.3 m and 10 m. Observed variables include levels of P (Phosphorus), water clarity, and Chlorophyll-a is contained in water reservoirs Sutami. Chlorophyll-a and the brightness of the water obtained from the sampling process independently, while the number of secondary data from phosphorus (P) obtained from Perum Jasa Tirta I from January 2010 until May of 2011. The data obtained were analyzed with descriptive statistics showing the average and standard deviation.The results showed that the condition of the water reservoir was contaminated Sutami in moderate to severe, both in the location of reservoirs upstream and downstream reservoirs. Trophic status of reservoirs Sutami is eutrofik to hypertrophic occurs on the downstream and middle reservoirs. Impacts arising from pollution levels that occur in the Sutami reservoir is the potential for algae bloom due to the high amount of phosphorus and chlorophyll-a. Load carrying capacity of the reservoir pollution Sutami for total phosphorus (kg / year) at the upstream location; 39 kg P / year, the middle; 195 kg P / year and downstream; 178.5 kg P / year.Keywords: pollution, trophic status, chlorophyll-a, reservoirs Sutami

Studi Penentuan Kinerja Pengelolaan Das Di Sub Das Konto Hulu Wibowo, Anggara Cahyo; Sayekti, Rini Wahyu; Rispiningtati, Rispiningtati
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.448 KB)

At the Sub Konto watershed upstream, Malang Regency, the success of watershed management was certainly related to the analysis of watershed sustainability performance indicators. Key performance indicators of sustainable management of watersheds in the region was covered environmental sustainability (land use and water management) as well as the sustainability of social, economic, and institutional. Therefore, an increase in cultivation area function requires integrated planning that some watershed management goals and objectives achieved, such as: 1) soil erosion control, 2) optimal water yield, and 3) productivity and carrying capacity of the land preserved. Thus land degradation can be controlled and wellbeing of the community can be assured. The purpose of this study was to determine the performance of sustainability in watershed management upstream Sub Konto watershed, and to know the results of the classification index parameters examined include land cover, land use suitability, erosion index, coefficient of river regime, the coefficient of variance, index of water use, sedimentation, runoff coefficient in Sub Konto watershed upstream. From this study it can be seen the results of the classification and calculation of the average in 2003 - 2012 include indices for land cover classification were 45.71% medium, the suitability of the land use classification of 85.21% good, erosion index of 85.98 classifications medium, the coefficient regime river classification either 8.88 good, coefficient variance of 0.18 medium, classification, water use index of 0.34 good classification, sedimentation of 2.23 medium classification ,runoff coefficient of 0.52 bad classification on the Sub Konto watershed upstream.Keywords: DAS, erosion, land use

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (723.343 KB)

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.

Evaluasi dan Alternatif Penanggulangan Genangan Berbasis Konservasi Air di Kota Kupang Das Dendeng â€“ Merdeka Propinsi Nusa Tenggara Timur Suparmanto, Joko; Bisri, Mohammad; Sayekti, Rini Wahyu
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 2, No 2 (2011)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.449 KB)

Kawasan padat penduduk Kelurahan Naikoten I, Kecamatan Oebobo, Kota Kupang setiap terjadi hujan dengan intensitas yang cukup tinggi selalu terjadi banjir/genangan air. Hal tersebut terjadi hampir di semua jalan/gang terutama di ruas Jalan Soeharto, Pasar Inpres Naikoten, depan SMU Kriten Nikoten dan Jalan Untung Suropati. Genangan disebabkan hampir semua permukaan tanah tertutup dengan lapisan kedap air, kesadaran masyarakat yang minim serta sebagian jalan/gang tidak memiliki saluran drainase. Studi dilakukan di Wilayah DPS Drainase Dendeng dan Merdeka, Kelurahan Naikoten I. Hasil studi menunjukkan besarnya debit rencana sistem DPS Drainase Dendeng dan Merdeka untuk kala ulang lima tahun masing-masing sebesar 24,017 m3/dt dan 4,775 m3/dt. Terdapat 9 saluran yang tidak mampu menampung debit rencana pada DPS Drainase Dendeng dan 8 saluran pada DPS Drainase Merdeka. Beberapa penyebab terjadinya saluran yang tidak mampu menampung debit rencana yaitu kurang terawat dan terdapatnya sampah pada saluran drainase.Upaya penanganan pada beberapa saluran yang tidak mampu menampung debit rencana yaitu dengan mendesain ulang dimensi saluran dan merencanakan kolam penampung. Selain penanganan tersebut dilakukan pula rekomendasi penanganan secara menyeluruh mengenai kebijakan-kebijakan pemerintah daerah yang melibatkan masyarakat setempat dan mengarah kepada pemberdayaan masyarakat dalam memelihara saluran drainase, pembangunan sumur resapan pada setiap rumah, serta izin dalam pendirian bangunan.Kata Kunci : Sistem Drainase, Genangan, Konservasi Air

PENENTUAN KINERJA IRIGASI PADA 16 BANGUNAN UTAMA (SECARA SERI) DI DAERAH IRIGASI JILU, KABUPATEN MALANG Sayekti, Rini Wahyu; Soetopo, Widandi; Agisaqma, La Ode
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 3, No 1 (2012)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (499.478 KB)

Irrigation is necessary in the management are of determining the existence of an effort to assess the performance of a Regionnal Irrigation that in the future can be evaluated for better performance. At the time Jilu Irrigation Region there are 16 irrigation and served the rice irrigation area of 992 ha.In this study of irrigation performance assessment of physical and non physical condition. Where the physical assassement include the condition of building ang irrigation channels on each network, where as the non physical assessment procedures include the application of cropping pattern and techniques of water. The techniques here is the uniformity of water delivery, water delivery efficiency, and adequacy. The data used is the physical data of buildings on time Jilu Irrigation Region, the Global Plan of planning, rainfall data 2001 to 2011, discharge data on intake in the year 2001 to 2011.The result on condition assessment of the Jilu Irrigation Region time overall result obtained for 72,6% obtained from the percentage of the physical condition of 78,09% the percentage of cropping pattern of the application of 64,582, and the percentage of assessment techniques for 75,358% of water, then from the results analysis is performed of determining the overall performance of irrigation.Based on standart guidelines regarding the performance of irrigation areas. Research and Development Center of Water Resources in 2003 mentions irrigation performance assessment result is good if > 70%, is enough if the results of the assessment range from 50% to 70% and said to be badly damaged or if the results of assessment < 50% . Of the parameters that already axists then the overall performance of the Jilu Irrigation Region time said to be good with the percentage value of 72,6%Keywords: assessment of physical, the application of cropping pattern, adequacy, the uniformity, water delivery efficiency, Research and Development Center of Water Resources.

Title

Found 21 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 21 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 21 Documents
Search