scholarly journals ANALISIS KERENTANAN SISTEM IRIGASI AKIBAT PERUBAHAN IKLIM DENGAN TOLOK UKUR INDEKS KELENTINGAN DI EMPAT DAERAH IRIGASI WILAYAH DAERAH ALIRAN SUNGAI BRANTAS

2019 ◽  
Vol 38 (4) ◽  
pp. 413
Author(s):  
Wahyuni Setyo Lestari ◽  
Didik Suprayogo ◽  
Sugeng Prijono
Keyword(s):  
Climate Change ◽  
Climate Variability ◽  
Water Availability ◽  
Irrigation System ◽  
Management Policy ◽  
System Management ◽  
Irrigation Area ◽  
K Factor ◽  
Resilience Index ◽  
Irrigation System Management

Climate change which mainly affected by the increase of climate variability from time to time is highly impacted to the vulnerability of irrigation system, in a way that by the increase of water demand can not be fulfilled by water availability (the decrease of capacity). While, basic measure of conducting irrigation system management currently is solely based on comparison value between demand and irrigation water availability (K-factor) without considering the increase of climate variability. Resilience Index (Ik)  as one of basic measures in water resource management can be used as a limitation in irrigation system operational management.  The results of the study show that  Molek, Jatikulon, Menturus  and Konto irrigation areas (DI) are impacted by climate change with different scales of resilience. The resilience index of 100% for Molek Irrigation area, 80% for Jatikulon irrigation area, 50% for Menturus irrigation area, and 33% for Konto irrigation area. Climate change is predicted causing the decrease of harvested area, in such a way that in the condition of El Niño around 48% in Konto Irrigation Area, 34% in the Menturus Irrigation Area, 28% at the Jatikulon Irrigation Area, and 15% in the Molek Irrigation areas.  Nevertheless, in the La-Nina condition, there was no the increase of harvested area in the entire of irrigation area studied, even, there was a decreased of harvested area of 28% in Konto irrigation area, and 6% in Menturus irrigation area.  The most powerful threat toward irrigation system sustainability is the environment, followed by physical, social, and economic aspects respectively. The results of this study implicate to the imprevement of irrigation management policy, namely to the operational pattern of irrigation system, which use resilience index (Ik) as basic measure of irrigation system management out of the K-factor.

scholarly journals OPTIMASI BIAYA PEMELIHARAAN

2020 ◽  
Vol 6 (3) ◽  
pp. 201-208
Author(s):  
Hardiman Hardiman ◽  
Manyuk Fauzi ◽  
Imam Suprayogi
Keyword(s):  
Irrigation System ◽  
Irrigation Management ◽  
Functional Condition ◽  
System Management ◽  
Irrigation Network ◽  
Irrigation Area ◽  
Physical Conditions ◽  
Management Function ◽  
Budget Optimization ◽  
Irrigation System Management

The performance of the irrigation system management in Riau Province has not shown an optimal irrigation management function and irrigation conditions and functions due to budget constraints that have an impact on the performance of one of the irrigation areas in this province, namely the Uwai irrigation area. The purpose of this research is to get the performance value of the irrigation network system in the Uwai irrigation area and get budget optimization in the Uwai irrigation area. The results showed that the greatest assessment of damage to physical conditions in the Uwai irrigation network was found in the carrier channel RU 4, RU 5, RU 6, RU 7 left, which was 40% of the total channels and buildings and the smallest functional condition assessment in the Uwai irrigation network. found on channel RU 4, RU 5, RU 6, RU 7 left, which is 75% so that this channel is only able to serve 85.5 Ha from 342 Ha, 71 Ha from 284 Ha, 59.5 Ha from 238 Ha, 36.75 Ha of 147 Ha to be served.   Abstrak Kinerja Pengelolaan sistem irigasi Provinsi Riau belum menunjukkan fungsi manajemen irigasi dan kondisi serta fungsi irigasi yang optimal akibat adanya keterbatasan anggaran yang ada sehingga berdampak pada kinerja salah satu daerah irigasi di provinsi ini yaitu daerah irigasi Uwai. Tujuan dari penelitian ini adalah untuk mendapat nilai kinerja sistem jaringan irigasi pada daerah irigasi Uwai  dan mendapat optimalisasi anggaran pada daerah irigasi Uwai. Hasil penelitian menunjukkan Penilaian kerusakan kondisi fisik di jaringan irigasi Uwai paling besar terdapat pada saluran pembawa RU 4, RU 5, RU 6, RU 7 kiri, yaitu sebesar 40% dari keseluruhan saluran dan bangunan dan penilaian kondisi fungsional di jaringan irigasi Uwai yang paling kecil terdapat pada saluran RU 4, RU 5, RU 6, RU 7 kiri yaitu sebesar 75% sehingga pada saluran ini hanya mampu melayani 85.5 Ha dari 342 Ha, 71 Ha dari 284 Ha, 59,5 Ha dari 238 Ha, 36,75 Ha dari 147 Ha yang harus dilayani.  

scholarly journals PERENCANAAN POLA TANAM PADA JARINGAN IRIGASI GANGSIRAN DESA TEBEL KABUPATEN JOMBANG

EXTRAPOLASI ◽  
2021 ◽  
Vol 18 (1) ◽  
pp. 42-49
Author(s):  
Faradlillah Saves
Keyword(s):  
Water Availability ◽  
Irrigation System ◽  
Rainfall Data ◽  
System Management ◽  
Cropping Pattern ◽  
Water Requirements ◽  
Irrigation Network ◽  
Cropping Patterns ◽  
Irrigation System Management ◽  
The Village

AbstractThe availability ofiwateriin the jombang area tends to be uneven because it is influenced by the rain and dry season. This makes the implementation of the cropping pattern in the village of Tebel Bareng district not in accordance with the available water availability, to obtain maximum production a goog irrigation system management is required. By conducting an analysis to determine the value of the monthly reliable discharge with the transformation of monthly rainfall data, water requirements and cropping patterns are expectedito be able to overcome problems that occur in the existing irrigation network in Tebel village Bareng sub-district Jombang district. To find out the average rainfalliusingitheialgebraic averageimethod with 10 years of rainfall data, then to find out the evapotranspiration is calculated using the penman method and reliable discharge calculations using the FJ Mock method. From the results of the analysis on the village irrigation in Tebel the reliable discharge value is 0,0165 m³/sec. Analysis of rrigation water needs was carried out using 24 alternatives. TheiNFR value of 88,29 mm/day was converted to 0,001021875 m³/sec or 10,022 l/sec. The alternative used is the 24 th alternative with the initial planting period in December II period. The cropping pettern used is paddy-paddy-secondary crops.AbstrakKetersediaan air didaerah jombang cenderung tidak merata karena dipengaruhi oleh musim hujan dan kemarau. Hal itu membuat pelaksanaan pola tanam di desa Tebel Kecamatan Bareng tidak sesuai dengan ketersediaan air yang ada, sehinga untuk mendapatkan hasil produksi yang maksimal diperlukan sebuah pengelolahan sistem irigasi yang baik. Dengan melakukan analisis untuk mengetahui nilai debit andalan bulanan dengan transformasi data curah hujan bulanan, kebutuhan air dan pola tata tanam diharapkan mampu mengatasi masalah yang terjadi pada jaringan irigasi yang ada di Desa Tebal Kecamatan Bareng Kabupaten Jombang. Untuk mengetahui curah hujan rata-rata menggunakan metode rata-rata aljabar dengan data curah hujan 10 tahun, lalu untuk mengetahui evapotranspirasi dihitung menggunakan metode penman dan perhitungan debit andalan diperoleh dengan menggunakan metode FJ. Mock. Dari hasil analisis pada daerah irigasi desa Tebel diperoleh nilai debit andalan sebesar 0,0165 m³/detik. Analisis kebutuhan air irigasi dilakukan menggunakan 24ialternatif Didapat nilai NFR sebesar 88,29 mm/hari dikonversikan menjadi 0,001021875 m³/detik atau 10,022 lt/detik. Alternatifiyang digunakan adalah alternatifike 24 dengan masa awal tanam pada Desember priode II. Pola tanam yang digunakan adalah padi-padi-palawija.

scholarly journals Improving the efficiency of operational measures on reducing the sediment capture in the irrigation system water intake

Vestnik MGSU ◽  
2019 ◽  
pp. 1167-1179
Author(s):  
Tatyana V. Naumova ◽  
Anatoliy M. Kusher ◽  
Irina F. Рikalova
Keyword(s):  
Water Intake ◽  
Large Scale ◽  
Irrigation System ◽  
Field Research ◽  
Climatic Conditions ◽  
Practical Implementation ◽  
System Management ◽  
Channel Processes ◽  
Sediment Loads ◽  
Irrigation System Management

Introduction. The article considers operational measures of channel process regulation in the headwater of low-pressure front water intake located on rivers with abundant sediment loads. In addition to deep hydraulic flushing, the study proposes the method of task-oriented handling of the watergate screens. It allows reducing the amount of irrigation system channel siltation and significantly reducing the expenses for mechanical cleaning. An analysis of the problems of practical implementation of hydraulic methods to reduce the sediment capture in water intakes and the necessity of moving to the advanced technological level of irrigation system management is given. The international experience of irrigation system management modernization based on the principle of integration and activation of interested parties in the decision-making process is considered. Materials and methods. The studies of hydraulic methods of impact on channel processes during the water intake operation were carried out on physical eroded models (large-scale one and fragmented one). When conducting field research, the article analyzed the economic situations in addition to the hydraulic studies. Results. The research has developed a schematic diagram for the creation of artificial circulation zones, Based on the results of the research on a large-scale field eroded model of the frontal water intake. This makes it possible to redirect a part of the sediment flow from the water intake to the spillway dam open gates and reduce the channel siltation intensity. The dependences were obtained for the amount of sediment captured in the water intake on the ratio of water flow taken into the main channel and discharged through the bottom flushing galleries, which allow interactive schedule adjustment of water supply to agricultural producers depending on hydrological and climatic conditions. Conclusions. The hydraulic methods usage scale and their efficiency depend on applying modern analytical methods and digital technologies in the development of operational patterns as well as on the improvement of the regulatory framework and the organizational and economic mechanism for the irrigation system management.

scholarly journals Potential and Challenges in Use of Thermal Imaging for Humid Region Irrigation System Management

2012 ◽  
Vol 4 (4) ◽  
Author(s):  
Steven J. Thomson ◽  
Claudiane M. Ouellet-Plamondon ◽  
Sherri L. DeFauw ◽  
Yanbo Huang ◽  
Daniel K. Fisher ◽  
...  
Keyword(s):  
Thermal Imaging ◽  
Irrigation System ◽  
System Management ◽  
Humid Region ◽  
Irrigation System Management
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