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INDONESIA
Jurnal Irigasi
Published by Puslitbang Sumber Daya Air
ISSN : 19075545     EISSN : 26154277     DOI : -
Core Subject : Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Engineering
Jurnal Irigasi merupakan publikasi ilmiah yang memuat hasil-hasil penelitian, pengembangan, kajian dan studi kasus terkait irigasi dan drainase. Ruang lingkup Jurnal Irigasi meliputi survei, investigasi, desain, akuisisi lahan, konstruksi, operasi, pemeliharaan di sistem irigasi yang ditinjau baik dari sisi teknis, ekonomi dan kelembagaan. Terbit pertama kali tahun 1986 dengan nama Jurnal Informasi Teknik dan pada tahun 2006 berganti nama menjadi Jurnal Irigasi. Jurnal Irigasi diterbitkan 2 (dua) kali dalam setahun yakni pada bulan Mei dan Oktober.
Arjuna Subject : -
Articles 5 Documents
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Search results for , issue "Vol 14, No 2 (2019): Jurnal Irigasi" : 5 Documents clear
Faktor yang Berpengaruh Terhadap Kinerja Sistem Irigasi di Wilayah Semi Arid Pulau Timor melalui Pendekatan Principal Component Analysis Ida Nurwiana
Jurnal Irigasi Vol 14, No 2 (2019): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (408.843 KB) | DOI: 10.31028/ji.v14.i2.35-48

Abstract

Irrigation system is very complex aspects, including irrigation water, irrigation area, the physical infrastructure of irrigation, human resources, irrigation institutional, management, financing, and technology which are interrelated to support agriculture. To increase agricultural production, the efforts made need to be formulated by considering the performance of the irrigation system and the influence of each related factor. This study aims to analyze the factors that influence of performance of the irrigation systems the irrigation area of district/municipality, province, central government in the semi-arid regions of Timor Island through the Principal Component Analysis (PCA) approach. Principal component analysis method uses fifteen indicators from 345 irrigation areas. This study concludes that fifteen variables showed a significant relationship both positive and negative towards the performance of the irrigation systems. The order of the biggest contribution of influences affecting the performance of the irrigation system in the main model component is the institutional aspects of the authority of the district/municipality irrigation area, productivity of rice, availability of supporting facilities for operation and maintenance, damage rate of drainage system, damage rate of secondary canals and damage rate of primary canals. The total cropping intensity shows a negative relationship to the performance of irrigation systems in semi-arid areas which water is limited. Meanwhile, the area of irrigation scheme, rice productivity, level of the participation of water user association, availability of supporting facilities for operation and maintenance, ratio of the number of operation and maintenance officers to irrigation area, frequency of maintenance of infrastructures, operation and maintenance costs, rehabilitation costs, authority of provincial irrigation areas show a positive relationship to system performance irrigation.
Pendugaan Komponen Keseimbangan Air di Lahan Sawah dengan Linear Programming Chusnul Arif; Budi Indra Setiawan
Jurnal Irigasi Vol 14, No 2 (2019): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (508.043 KB) | DOI: 10.31028/ji.v14.i2.79-88

Abstract

Managing water in the paddy fields, water balance analysis is usually performed to determine the effectiveness of water used. However, with limited advanced instrumentation, time and cost, some water balance components are not measured. This study proposed a novel method, Linear Programming (LP) model, to estimate non-measurable water balance components. The aims of this study were to develop LP model in estimating non-measurable water balance components such as irrigation, runoff and percolation with measured soil moisture data in non-flooded irrigation, and then to evaluate performance of the model by comparing measured and estimated soil moisture. This study was carried out based on two season field experiments of non-flooded irrigation with System of Rice Intensification (SRI) in NOSC, Sukabumi West Java during 20 August to 15 December 2011 (first season) and 22 March to 5 July 2012 (second season). The developed LP model has the objective function by minimizing the differences between total measured and estimated soil moisture. In addition, the LP model has also constraint function and initial condition that were formulated based on actual field conditions. The results showed the LP model estimated non-measurable water balance accurately with the indicators of R2 > 0.85 (p value < 0.01) and percentage error less than 8%. Based on the estimation model results, irrigation only contributed 34-38% of inflow, while crop evapotranspiration and percolation contributed of 40-44% and 11-15%, respectively. Precipitation and runoff were the most contributors of inflow and outflow from the fields. By the current model, water use efficiency and water productivity can be determined with estimated irrigation.
Teknik Identifikasi Saluran Irigasi pada Citra Satelit Resolusi Tinggi dengan Penggabungan Komposit RGB, Indeks Saluran, dan Interpretasi Visual Bambang Trisakti; Udhi Catur Nugroho; Hanhan Ahmad Sofiyuddin; Naufal Syauqi
Jurnal Irigasi Vol 14, No 2 (2019): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (514.968 KB) | DOI: 10.31028/ji.v14.i2.1-8

Abstract

One of the important programs to support the national food security is the development and rehabilitation of the irrigation network infrastructure. Spatial data on the location of existing irrigation networks becomes very important information for the policy of regional expansion of irrigation and monitoring of the damage of irrigation network infrastructure. High spatial resolution satellite imagery such as SPOT 7 and the Pleiades is capable of visually exposing the earth's surface objects, such as roads, rivers, and irrigation canals. Research was conducted to develop an irrigation canal identification procedure using high-resolution imagery. The identification procedure is done by combining the RGB composite image with false color, the canal index, and visual interpretation by recognizing the characteristics of the irrigation canal. Development of RGB composites and canal index was conducted based on the spectral pattern differences from the irrigation canal with spectral patterns of some similar objects. RGB composite imagery combined with canal index can clarify and isolate irrigation canals from surrounding object with some constraints in the canal width and crop shadows. Imagery interpretation techniques can ensure precise identification and distinguish irrigation canals with crop shadows. An image of SPOT 6/7 can be utilized for canal identification of more than 4 m in width, and the image of Pleaides for canal of less than 4 m in width. The total accuracy of the irrigation canal identification results using Pleaides imagery was around 82%.
Akselerasi Waktu Pelaporan Operasi Irigasi Menggunakan Perangkat Lunak Berbasis Web Sistem Manajemen Operasi dan Pemeliharaan Irigasi (SMOPI) Sofiyuddin, Hanhan Ahmad; Rahmandani, Dadan
Jurnal Irigasi Vol 14, No 2 (2019): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (465.466 KB) | DOI: 10.31028/ji.v14.i2.9-24

Abstract

More efficient irrigation management is needed in the face of limited water availability and the increasing water requirements for other than agricultural sectors. This can be done by improving the accuracy of irrigation water through the optimizing of irrigation operation intervals. One effort which can be done is minimizing the time needed to report irrigation operation activities. using web-based application Irrigation Operations Management System (SMOPI). Research is conducted to identify the minimum time required for the reporting of irrigation operations, either manually or using SMOPI. The research was conducted as a case study in the Bondoyudo irrigation area by means of the collection of data through discussions and questionnaires as well as analysis of the time needed to report irrigation operation activities using the Critical Path Method. The result showed that the manual irrigation operations take 43 hours at the crop planning stage, 41 hours at the water delivery management, and 45 hours at the result recapitulation stage. The requirement of about 5 days at the implementation stage indicates that the operating interval of existing irrigation every 10 days is quite feasible. SMOPI is able to accelerate so that the operation time at the crop planning, water delivery management, and result recapitulation stage are 24.5 hours, 14 hours, and 31,5 hours. This indicates that SMOPI can be used to help shorten the interval of irrigation operations to support irrigation modernization.
Optimasi Operasi Irigasi pada Kondisi Darurat Pasca Bencana Gempa di Daerah Irigasi Gumbasa, Sigi, Sulawesi Tengah Haryo Istianto; Hanhan Ahmad Sofiyuddin
Jurnal Irigasi Vol 14, No 2 (2019): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31028/ji.v14.i2.49-58

Abstract

Earthquake incident in Sigi District, Central Sulawesi has damaging  the  Gumbasa Irrigation Scheme. Rehabilitation of irrigation network will be carried out gradually starting at firtst stage from the intake until the canal section of BGKn 8 (Sibalaya) which affected by the liquefaction. Irrigation operations need to be carried out gradually for the section which has been rehabilitated and ready to be operated so that the local community can immediately grow crops and not lose their livelihood.  Nevertheless, the service area and required canal discharge will be much lower than the design so it will cause some water distribution problems. This research was conducted to formulate a pattern of irrigation operations in Gumbasa Irrigation Scheme in emergency situations where the canal discharge is much lower than the designed.  Research was conducted by means of data collection and formulation of irrigation operation scenarios through hydraulic analysis. Simulated scenario was an operation without optimization, optimization by using existing sluice gate, and optimization using the skot beam. The results showed that irrigation operation without optimization can not be done because the elevation of water can not rise and flows to the secondary canal due to the large primary canal dimension. The use of a sluice gate optimization can only elevate water elevation by ±1 m from the base of the canal. In addition, closing the sluice gate can result in overflow in some canal segment. In the last scenario, utilization of the skot beam for optimization is the best solution. Skot beams can elevate water at the required height. Skot Beam is a infrastructure which quite good  for a temporary irrigation operation where the water level can be adjusted  even though the discharge is relatively small.

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