| Comprehensive evaluation on the operation condition of large irrigation district based on the grey relation theory-osculating value method |
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| DOI：10.7606/j.issn.1000-7601.2016.01.37 |
| Key Words: large irrigation district the operation condition comprehensive evaluation grey relation method osculating value method |
| Author Name | Affiliation | | FEI Liang-jun | Institute of Water Resources and Hydro-electric Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China | | WANG Jin-hui | Institute of Water Resources and Hydro-electric Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China | | WANG Guang-she | Shaanxi Province Institute of Water Resources and Electric Power Investigation and Design, Xi'an, Shaanxi 710001, China | | FENG Chan-li | Shaanxi Province Institute of Water Resources and Electric Power Investigation and Design, Xi'an, Shaanxi 710001, China | | WU Jin-hua | Institute of Water Resources and Hydro-electric Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China |
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| Abstract: |
| The greater grey correlation between optimal point of evaluation objects and goals, the closer distance between them. When carrying out comprehensive evaluation on the operation condition of large irrigation district, grey relation method and osculating value method can be combined, both retaining good advantages in objectivity of the osculating value method and overcoming the defects of osculating value method under poor information condition through reasonable use of the grey relation method. A large-scale gravity canal Luohuiqu irrigation district in Shaanxi was then employed to validate the above hypothesis. The evaluation results showed that in years of 2007, 2008, 2009, 2010, 2011 and 2012, the osculating values in Luohuiqu irrigation district were 5.1238, 4.7421, 3.8396, 3.0147, 2.4679, and 1.2868, and the levels of operation conditions were medium, medium, medium, good, good, and good, respectively. The evaluation results were basically in accordance with the extension evaluation method. With time going, the evaluation level in Luohuiqu irrigation district gradually became improved and the operation condition was enhanced, which also confirmed the objective reality and the law of development in this district. This method was simple in comprehension and high in reliability, providing a new approach in overall evaluation of operational status in large-scale irrigation area. |
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