Volume 8 Issue 3
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Ming-hui Wang, Guang-cheng Shao, Jia-jia Meng, Chang-ren Chen, Dou-dou Huang. 2015: Variable fuzzy assessment of water use efficiency and benefits in irrigation district. Water Science and Engineering, 8(3): 205-210. doi: 10.1016/j.wse.2014.06.002
Citation: Ming-hui Wang, Guang-cheng Shao, Jia-jia Meng, Chang-ren Chen, Dou-dou Huang. 2015: Variable fuzzy assessment of water use efficiency and benefits in irrigation district. Water Science and Engineering, 8(3): 205-210. doi: 10.1016/j.wse.2014.06.002
shu

Variable fuzzy assessment of water use efficiency and benefits in irrigation district

doi: 10.1016/j.wse.2014.06.002

  • a Suqian Water Surey and Design Research Co. Ltd, Suqian 223800, PR China

  • b Key Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China, Ministry of Education, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, PR China

  • c Huai’an Water Resources Planning Office, Huai’an 223005, PR China

  • d Water Resources Department of Jiangsu Province, Nanjing 210029, PR China

Funds:  This work was supported by the National Natural Science Foundation of China (Grant No. 51279059), the Excellent Innovation Talents Plan of Hohai University, and the Fundamental Research Funds for the Central Universities.
More Information
  • Corresponding author: Guang-cheng Shao
  • Received Date: 2013-12-10
  • Rev Recd Date: 2014-07-20
    Abstract
  • In order to scientifically and reasonably evaluate water use efficiency and benefits in irrigation districts, a variable fuzzy assessment model was established. The model can reasonably determine the relative membership degree and relative membership function of the sample indices in each index’s standard interval, and obtain the evaluation level of the sample through the change of model parameters. According to the actual situation of the Beitun Irrigation District, which is located in Fuhai County, in Altay City, Xinjiang Uyghur Autonomous Region, five indices were selected as evaluation factors, including the canal water utilization coefficient, field water utilization coefficient, crop water productivity, effective irrigation rate in farmland, and water-saving irrigation area ratio. The water use efficiency and benefits in the Beitun Irrigation District in different years were evaluated with the model. The results showed that the comprehensive evaluation indices from 2006 to 2008 were all at the third level (medium efficiency), while the index in 2009 increased slightly, falling between the second level (relatively high efficiency) and third level, indicating an improvement in the water use efficiency and benefits in the Beitun Irrigation District, which in turn showed that the model was reliable and easy to use. This model can be used to assess the water use efficiency and benefits in similar irrigation districts.

     

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