The Cost of Irrigation Water Delivery: An Attempt to Reconcile the Concepts of Cost and Efficiency

2012 ◽  
Vol 26 (7) ◽  
pp. 1865-1877 ◽  
Author(s):  
Gabriele Dono ◽  
Luca Giraldo ◽  
Simone Severini
Keyword(s):  
Irrigation Water ◽  
Water Delivery ◽  
The Cost

The Cost of Irrigation Water in the Jordan Valley

10.1596/k8697 ◽  
2016 ◽  
Author(s):  
Caroline van den Berg ◽  
Sana Kh. H. Agha Al Nimer
Keyword(s):  
Irrigation Water ◽  
Jordan Valley ◽  
The Cost

scholarly journals Efisiensi Penyaluran Air Irigasi BKA Kn 16 Lam Raya Daerah Irigasi Krueng Aceh

2015 ◽  
Vol 8 (1) ◽  
pp. 19-28 ◽  
Author(s):  
Andriani Asarah Bancin ◽  
Dewi Sri Jayanti ◽  
T. Ferijal
Keyword(s):  
Water Resources ◽  
Water Loss ◽  
Irrigation Water ◽  
Water Delivery ◽  
Surface Irrigation ◽  
Secondary Channel ◽  
Irrigation Network ◽  
Irrigation Area ◽  
Average Water ◽  
Delivery Efficiency

Abstrak. Daerah Aliran Sungai (DAS) Krueng Aceh memiliki jaringan irigasi permukaan teknis untuk mengairi 7.450 ha lahan sawah di Kabupaten Aceh Besar. Peningkatan tekanan pada sumber daya air yang tersedia untuk irigasi dan kebutuhan lainnya, terutama selama musim kemarau, membutuhkan jaringan irigasi yang memiliki efisiensi yang tinggi untuk menyalirkan air irigasi. Penelitian ini bertujuan untuk mengetahui efisiensi penyaluran dan jumlah kehilangan air di saluran sekunder dan tersier dari jaringan irigasi pilihan yaitu Jaringan Lam Raya.Hasil penelitian menunjukkan bahwa efisiensi penyaluran rata-rata untuk BKA Kn 16 Lam Raya adalah 52,47%. Rata-rata kehilangan air dan efesiensi penyaluran air di saluran sekunder berturut-turut adalah 0.048 m3/dtk dan 81,11%. Kehilangan tersebut disebabkan oleh penguapan 2,73 x 10-7 m3/dtk, rembesan 0,00212 m3/dtk dan faktor lainnya 0,04548 m3/dtk. Kehilangan air rata-rata di saluran tersier adalah 0.01 m3/dtk yang merupakan kehilangan akibat adanya penguapan 5,046 x 10-8 m3/dtk, rembesan 0,00033m3/dtk dan faktor lainnya 0,00994 m3/dtk. Hal tersebut menyebabkan efisiensi penyaluran air di saluran tersier sekitar 71,88%. Namun, kinerja jaringan irigasi masih dikategorikan baik karena memiliki efisiensi penyaluran air yang lebih besar dari 60%. Kehilangan air di saluran tersier sebagian besar disebabkan oleh banyak bagian dinding dan dasar saluran yang rusak, dan adanya vegetasi dan sedimen pada saluran yang memperlambat aliran air. Conveyance Efficiency Of Irrigation Water At BKA Kn 16 Lam Raya Krueng Aceh Irrigation Area Abstract. Krueng Aceh Watershed has technical surface irrigation network to irrigate 7.450 ha of paddy fields in Aceh Besar District. Increasing pressure on available water resources for irrigation and other needs, particularly during dry season, requires an irrigation network having a higher level of efficiency to deliver irrigation water. This study aims to determine the delivery efficiencies and amount of water loss in secondary and tertiary channels of selected irrigation network. Lam Raya network was selected for the study area. Results showed that average delivery efficiency for BKA Kn 16 Lam Raya was 52.47%. The average water loss and water delivery efficiency in secondary channel were 0,048 and 81,11%, respectively. The loss was caused by evaporation 2.73 x 10-7 m3/s, seepage 0.00212 m3/s and other factors 0.04548 m3/s. The average water loss in tertiary channels was 0,01 m3/s contributed by losses from evaporation 5.046 x 10-8 m3/s, seepage 0.00033 m3/s and other factors 0.00994 m3/s. It caused tertiary channel's water delivery efficiency was approximately 71,88%. However, performance of irrigation network was classified as good since it has water delivery efficiency greater than 60%.  Water loss in tertiary channel largely due to many parts of wall and base of the channels were broken, and the presence of vegetation and sediment in the channel slowed the water flow.

Irrigation Water Delivery Performance

1984 ◽  
Vol 110 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Albert J. Clemmens ◽  
Allen R. Dedrick
Keyword(s):  
Irrigation Water ◽  
Water Delivery ◽  
Delivery Performance

scholarly journals Desain Pintu Air Berbantu Komputer Untuk Saluran Irigasi Tersier di Daerah Irigasi Cikarawang Bogor

2021 ◽  
Vol 5 (3) ◽  
pp. 137-152
Author(s):  
Eka Sulaecha ◽  
Budi Indra Setiawan
Keyword(s):  
Irrigation Water ◽  
Effective Rainfall ◽  
Computer Design ◽  
Irrigation Water Demand ◽  
Gate Opening ◽  
Water Gate ◽  
Computer Aided ◽  
Using Data ◽  
The Cost ◽  
Data Plotting

Irrigation water gate was one of the supporting components of agricultural activities, especially the management of rice fields, because it was utilized in the management of water flow. The implementation of water gate has a complex and interdependent set of tasks. So that was the problem which can made undesired effects. So that, the planning can be shorted by computer design . Besides, the changes in a design could be overcome quickly and precisely. The purpose of this research is to the effective rainfall, evapotranspiration, discharge of irrigation water needs in the Cikarawang irrigation area, produce a design of computer-aided water gate, and know RAB for the construction of the water gate. The study was conducted from April to July 2020. The place to do the research was Cikarawang Village, Bogor Regency, West Java. The results of the study were the design of water gate by using data plotting with computer-aided script files (SCR). The effective rainfall of 1806.3 mm, the highest evapotranspiration of 5.5 mm/day and the lowest evapotranspiration of plants at 4 mm/day, the highest irrigation water demand was 2.18 lt/dt/ha,  The dimensions of 0.5 x 0.75 x 0.012 m, and water gate opening 0.27 m. These water gate openings were used when the plant's water requirements are highest. The cost of making water gate made from fiberglass is Rp. 838.000,-while for steel costs Rp. 3.500.000,-.

scholarly journals Synthetic- and bio-polymer use for runoff water quality management in irrigated agriculture

2005 ◽  
Vol 51 (3-4) ◽  
pp. 107-115 ◽  
Author(s):  
R.E. Sojka ◽  
J.A. Entry ◽  
W.J. Orts ◽  
D.W. Morishita ◽  
C.W. Ross ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Water Quality Management ◽  
Raw Material ◽  
Irrigated Agriculture ◽  
Runoff Water ◽  
Low Concentrations ◽  
The Us ◽  
Environmentally Safe ◽  
The Cost ◽  
Micro Organisms

Low concentrations of synthetic- or bio-polymers in irrigation water can nearly eliminate sediment, N, ortho- and total-P, DOM, pesticides, micro-organisms, and weed seed from runoff. These environmentally safe polymers are employed in various sensitive uses including food processing, animal feeds, and potable water purification. The most common synthetic polymer is anionic, high purity polyacrylamide (PAM), which typically provides 70–90% contaminant elimination. Excellent results are achieved adding only 10 ppm PAM to irrigation water, applying 1–2 kg ha−1 per irrigation, costing $4–$12 kg−1. Biopolymers are less effective. Using twice or higher concentrations, existing biopolymers are ≈60% effective as PAM, at 2–3 times the cost. A half million ha of US irrigated land use PAM for erosion control and runoff protection. The practice is spreading rapidly in the US and worldwide. Interest in development of biopolymer surrogates for PAM is high. If the supply of cheap natural gas (raw material for PAM synthesis) diminishes, industries may seek alternative polymers. Also “green” perceptions and preferences favor biopolymers for certain applications.

Structure Design and Mechanics Calculation of Aqueduct Model

2014 ◽  
Vol 488-489 ◽  
pp. 381-384
Author(s):  
Xue Chen Li ◽  
Peng Chen ◽  
Yong Ye ◽  
Cheng Hao Wang
Keyword(s):  
Mechanical Properties ◽  
Irrigation Water ◽  
Static Load ◽  
Water System ◽  
Structure Design ◽  
Structure Calculation ◽  
Continuous Beam ◽  
Water Delivery ◽  
Practical Application ◽  
Whole Process

Aqueduct is a conveyance structure which can across the channel, depressions, roads and railways and its conveyance water system is mainly composed of bridges, tunnels or ditch. Aqueduct is widely used in hydraulic engineering, and plays a role in irrigation ,water delivery , drainage and desilting. A large aqueduct can also be used for navigation. In the paper, based on the aqueduct design, aqueduct model making, aqueduct structure calculation and static load experiment, the whole process of design and calculation of continuous beam truss aqueduct model are performed, and the analysis of its mechanical properties are also carried on. These results are useful for the practical application of aqueduct structure.

scholarly journals Evaluating the performances of a flexible mechanism of water diversion: application on a northern Italy gravity-driven irrigation channel

2021 ◽  
Author(s):  
Daniele Masseroni ◽  
Alessandro Castagna ◽  
Claudio Gandolfi
Keyword(s):  
Irrigation Water ◽  
Irrigation District ◽  
Water Diversion ◽  
Regulation System ◽  
Water Requirements ◽  
Flow Measurements ◽  
Lombardy Region ◽  
Mediterranean Countries ◽  
The Cost ◽  
The Eu

AbstractImproving the management of irrigation schemes is a priority in the Mediterranean countries of the EU to achieve the objectives of the Water Framework Directive 2000/60EC. In the case of schemes based on open-channel networks for water conveyance and delivery, a limitation to the management efficiency is the huge number of gates that need to be controlled and regulated manually to adapt the flow to the actual irrigation water demand. Automated and coordinated gate regulation of large irrigation schemes has been successfully implemented in some areas of the world (e.g., NSW, Australia), but it implies huge public investments that are often unavailable. Opposite to this top–down approach, the Lombardy region (the largest irrigated region in the EU) has explored an approach based on funding small projects, which should demonstrate the potential of innovation in irrigation practice and foster the expansion of the most effective measures. In this paper, we analyze the effects of one of these projects, consisting in the substitution of a manual gate, controlling the supply of irrigation to a 150 ha irrigation district, with an automated, remotely controlled gate. Nine years of daily flow measurements at the district inlet, provided by the irrigation consortium that manages the gate, were compared with the rigid flow regulation that was applied when the inlet gate was manually regulated and with the irrigation water requirements simulated with a distributed agro-hydrological model widely used in the region for irrigation accounting and planning. The results show that the flexible regulation allowed by the new gate provided an average water saving of 12,000 m3/ha/year compared to the rigid regulation system. A further, though smaller, margin of improvement of 5000 m3/ha/year can be achieved with an optimal regulation that follows exactly the crop water requirements. A further interesting empirical evidence is that the simulation model fits very well the irrigation water requirements of the district using only easily accessible meteorological input data, without exploiting any information from ground or remote sensors to update soil moisture or crop developments during the season. This indicates that it could be effectively used, with very limited costs and effort, to support and improve the gate management. Finally, a preliminary economic analysis shows that the cost of the gate installation is sustainable, but the upscaling of this type of intervention to larger areas requires the support of public funding to cover approximately half of the cost of investment needed for the networking infrastructures.

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