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| Analysis of production efficiency of irrigation districts based on DEA method:Take Jiangsu province as an example |
| Cao Xinchun1,2, Wu Pute1,2,3, Wang Yubao1,2, Zhao Xining2,3, Liu Jing2 |
| 1.College of Water Resources and Architectural Engineering, Northwest A & F University, Yangling, Shaanxi 712100, China; 2. Institute of Water Saving Agriculture in Arid regions of China, Northwest A & F University, Yangling, Shaanxi 712100, China; 3. National Engineering Research Center for Water Saving Irrigation at Yangling, Yangling, Shaanxi 712100, China |
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Abstract Most agricultural production efficiency evaluations of irrigation district are based on single input and output index now. We used data envelopment analysis(DEA)method and set the input and output index system which can represent the characterization of production efficiency, after that we compared the relative production efficiency of 35 irrigation districts in Jiangsu using the CCR model as an example. Results showed that the comprehensive efficiency of Jiangsu province was not high; The differences between irrigation area were large; The average value of the comprehensive efficiency of Jiangsu was 0.634; Three irrigation districts were DEA effective; The popularization and utilization of agricultural production technology in different region were at the same rate; The imbalance of relative production efficiency of irrigation districts was mainly caused by the unreasonable production scale; We can increase the production efficiency of DEA ineffective irrigation area by reducing the input;The effective irrigation area, water resources and agricultural population we can saved in all the DEA ineffective irrigation districts were accounts for 20.7%,13.3% and 9.4% respectively by improving production efficiency when compared with the input. The comparison of the relative DEA efficiency can provide a new method for irrigation production efficiency improvement and the calculation of agricultural water saving potential.
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Received: 04 December 2012
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