Performance Of Irrigation Networks Research Articles

Assessing irrigation network performance based on different climate change and water supply scenarios: a case study in Northern Iran

The aim of this paper was to investigate the performance of irrigation networks under climate change, through a case study of a sprinkler irrigation network in Bilesavar, Northern Iran. In this study, the performance of the irrigation network was evaluated using WaterGems in terms of the equity and the adequacy of pressure, and minimum and maximum velocity at the outlets based on different scenarios. The results showed that ETo may be around 6% higher than the baseline (1971-2000) by 2010-39, and 12% higher by 2050-79, consequently, irrigation requirements may be higher in the future. Owing to climate change, it was seen that the irrigation network may experience challenges in terms of pressure and discharge supply. With increasing demand on the network, equity and adequacy indices of pressure distribution were seen to decline. In order to adjust to these changes, adaption strategies such as changes in the area of cultivation showed the greatest impact in reducing the volume and demand of water in the network. In general, the results showed that the various potential climate change scenarios may have a significant impact on irrigation network performance.

The simulation of cropping pattern to improve the performance of irrigation network in Cau irrigation area

Cau irrigation area located in Madiun district, East Java Province, irrigates 1.232 Ha of land which covers Cau primary channel irrigation network, Wungu Secondary channel irrigation network, and Grape secondary channel irrigation network. The problems in Cau irrigation area are limited availability of water especially during the dry season (planting season II and III) and non-compliance to cropping patterns. The evaluation of irrigation system performance of Cau irrigation area needs to be done in order to know how far the irrigation system performance is, especially based on planting productivity aspect. The improvement of irrigation network performance through cropping pattern optimization is based on the increase of water necessity fulfillment (k factor), the realization of planting area and rice productivity. The research method of irrigation system performance is by analyzing the secondary data based on the Regulation of Ministry of Public Work and State Minister for Public Housing Number: 12/PRT/M/2015. The analysis of water necessity fulfillment (k factor) uses Public Work Plan Criteria Method. The performance level of planting productivity aspect in existing condition is 87.10%, alternative 1 is 93.90% dan alternative 2 is 96.90%. It means that the performance of the irrigation network from productivity aspect increases 6.80% for alternative 1 and 9.80% for alternative 2.

Pengaruh Penerapan Sistem Manajemen Mutu terhadap Kualitas Pelaksanaan Kegiatan Operasi dan Pemeliharaan (Studi Kasus: Tugas Pembantuan Operasi dan Pemeliharaan Daerah Irigasi Kedung Asem dan Daerah Irigasi Bodri Provinsi Jawa Tengah)

A decrease in irrigation network performance system operation and maintenance are the impact of the operation management system and irrigation maintenance which does not suitable with the technical demands of the irrigation network design. The purpose of this study is to determine the effect of the application of quality management system in ministry of public works to the quality of the operations and maintenance on the Tasks Operation and Maintenance. The object of the research was in Kedung Asem and Bodri Irrigation Area, it was seen from three variables, namely: (1) the management of resources, (2) the implementation of the activities, (3) measurement, analysis and improvement. Data were obtained from observation andquestionnaire, and then were processed by using descriptive method and linear regression method. The results says that the quality management system in resource management is perceived as good enough category; the implementation activities, measurement, analysis and improvement were perceived good by the respondents. Identification of the quality of the operations and maintenance were also perceived good; further, performance index ratings of irrigation systems are performing well. The results of multiple linear regression equation is Y =12.883+1,181X1+0,449X2 +1,210X3, the conclusions hypothesis testing shows that the implication of quality management system give positive and significant effect on improving the quality of operations and maintenance work on the Tasks Operation and Maintenance of (DI) Kedung Asem and (DI) Bodri Irrigation Area.

Extracting physical homogeneous regions out of irrigation networks using fuzzy clustering method: a case study for the Ghazvin canal irrigation network

Improving the current operation and maintenance activities is one of the main steps in achieving higher performance of irrigation networks. Improving the irrigation network management, influenced by different spatial and temporal parameters, is confronted with special difficulties. One of the controversial issues often faced by decision-makers is how to cope with the spatial diversity of irrigation systems. Homogeneous area detection out of the irrigation networks could improve the current management of networks. The idea behind this research is to present a quantitative benchmark for exploring the homogeneous areas with similar physical attributes out of the network region. Five physical attributes, such as length, capacity, number of intakes, number of conveyance structures and the covered irrigated area for each canal reach, are used for spatial clustering. Two fuzzy clustering algorithms, namely FCM and GK, are applied to the Ghazvin irrigation network. Using a clustering validity index, SC, shows that the GK algorithm is the more appropriate tool for clustering of the considered dataset. According to the results the optimal number of clusters for the Ghazvin irrigation project is derived as nine clusters and the irrigated district is classified into nine homogeneous areas. Physical homogeneous regions provide a context for better and easier decision-making.

Irrigation Distribution Networks’ Vulnerability to Climate Change

Climate change will lead to changed demands on existing irrigation systems. This paper presents a methodology for investigating the performance of irrigation networks under climate change, and applies this to an irrigation network in Cordoba, southern Spain. The methodology uses emission scenarios (A2 and B2) developed by the Intergovernmental Panel on Climate Change. A global climate model (HadCM3) is used with downscaling to predict climate variables for 2050 and 2080 under the emission scenarios. European agricultural policy scenarios are used to predict future cropping patterns. Irrigation water requirements are then estimated for various combinations of these climate and cropping pattern scenarios, and the performance of the irrigation network is evaluated in terms of the equity and adequacy of pressure at the outlets, using EPANET. The methodology was applied to the Fuente Palmera irrigation district, which supplies water on-demand for drip irrigation. The results show that climate change would have a major impact on network performance with the existing cropping pattern, but that expected changes in cropping pattern would reduce this impact.