Evaluation of seasonal performance of irrigation systems and plants with ARIS index

Articles in Press

Document Type : Research Paper

Authors

1 Agricultural Engineering Research Department, West Azerbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Urmia, Iran

2 University of Tehran

3 Professor, Dept. of Irrigation and Reclamation Engineering, Univ. College of Agriculture and Natural Resources, Univ. of Tehran, Karaj, Iran.

4 Department of water engineering, university of mohaghegh ardabili, ardabil. iran

Abstract

Irrigation performance evaluation is needed for hydrological planning and as the first step to improve water management, one of the performance evaluation criteria is the relative annual irrigation supply index (ARIS), which is used in agriculture and water resources management to evaluate the adequacy of water supply for irrigation in the length of a cropping period is used. Therefore, the purpose of this research is to investigate the ARIS index and water productivity indices for different plants (wheat, seed corn, corn, maize, sugar beet, cotton, alfalfa and soybean) in two surface and center pivot irrigation systems in It was Moghan Plain where three indices 〖WP〗_T، 〖WP〗_eg and 〖WP〗_en were used to check water efficiency. This research was conducted in 13 combinations of irrigation system - crop in the area of 647 hectares. The results showed that the ARIS index for the studied area varied from 0.73 to 2.21, so that the overall average was 1.27 with an overall standard deviation of 0.15, which indicated the application of heavy irrigation in the fields. Regarding the irrigation systems, the average ARIS for surface and center pivot irrigation was 1.60 and 0.89, respectively. Also, in terms of plant type, soybean and corn had the lowest and highest ARIS values with 0.73 and 1.73, respectively. On the other hand, the investigation of technical and economic efficiency of water for main crops and irrigation systems showed that maize and seed corn and cotton in the surface irrigation system had the lowest value,

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Main Subjects

Iranian Journal of Soil and Water Research

Articles in Press, Accepted Manuscript
Available Online from 22 October 2024

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