| Cite this article: | 陈璇璇,张旖旎,刘莉,等.基于超效率DEA模型的水资源利用效率评价[J].灌溉排水学报,0,():-. |
| Chen Xuanxuan,Zhang Yini,Liu Li,et al.基于超效率DEA模型的水资源利用效率评价[J].灌溉排水学报,0,():-. |
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| DOI： |
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| Evaluation and Analysis of Water efficiency: Based on the Super Efficiency DEA Model |
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Chen Xuanxuan1, Zhang Yini2, Liu Li3, Wang Lina2
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1.School of Geography;2.South China Normal University;3.Guangzhou 510631
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| Abstract: |
| In this work, a super-efficiency data envelopment analysis (DEA) models was conducted to measure and analyze the problem of efficiency facing industrial sectors in 21 cities in Shaanxi and Shanxi province, China, which are resource-deficient areas. An indicator system involves 4 water resources condition, 6 water utilization and 5 economic indices is proposed for measuring the water consumption caused by water resources condition output, economic output of water resources condition and economic output of water utilization in each industrial sectors respectively. The results show that the water resources productivity in 16 cities except for Xi’an, Taiyuan, Xianyang, Weinan and Yuncheng city is low when water resources condition is treated as input, while water utilization of industrial sectors as output. Secondly, when water utilization condition is used as input and economic status used as output, only 14.29% cities are productivity effective in water resources. Furthermore, the economic output of water utilization condition in Shangluo and Ankang city are inefficiency when the water utilization condition applied as input and economic status as output, while the other 19 cities are DEA effective. It is evident that even though the condition of water resources in Shaanxi and Shanxi province is restricted, and the inefficiency in water resources output and economic output of water resources, the economic output of water utilization of the industrial sectors would be ideal. The result implied that in 2017, methods were used to weakening the disadvantage in water resources condition in order to raise the productivity in water utilization economy in Shaanxi and Shanxi province. |
| Key words: Water resources condition, Water utilization, Economic indices, Water efficiency |
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