[1]LUO Zhanfu,ZHU Lixiang,CHANG Fei,et al.Spatiotemporal Differences and Change Characteristics of Urban Water Supply Efficiency in China[J].Research of Soil and Water Conservation,2020,27(02):307-314,322.
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Spatiotemporal Differences and Change Characteristics of Urban Water Supply Efficiency in China
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 02
Page number:
307-314,322
Column:
Public date:
2020-03-30
- Title:
- Spatiotemporal Differences and Change Characteristics of Urban Water Supply Efficiency in China
- Keywords:
- urban water supply; efficiency; DEA model; Malmquist index; China
- CLC:
- F299.4
- DOI:
- -
- Abstract:
- With respect to the efficiency of urban water supply, it not only reflects the simple economic benefits, but also is related to the social benefits of the normal operation of urban production and life. In addition, it is also related to the quality of urbanization of the high-quality development and high-quality life. The water supply efficiency and productivity of 290 cities at prefecture level in China in 2006, 2010 and 2016 were quantitatively measured by DEA model and the Malmquist productivity index model. The results show that:(1)the overall efficiency of urban water supply in China is at a medium level, and the scale efficiency of urban water supply is higher than that of pure technical efficiency, which has become the main driving force of the comprehensive efficiency;(2)the efficiencies of urban water supply among cities in China have significant differences, and can be divided into five different types such as high efficiency, medium-high efficiency, medium efficiency, medium-low efficiency and low efficiency, for all that, their efficiency level is constantly improving at every stage;(3)the change trend of urban water supply efficiency in China is upward and the role of technological change is enhanced, different types of water supply efficiency change of cities, such as double-drive ascending type and double-lag descending type, comprehensive efficiency-driven ascending type and lag descending type, technical change-driven ascending type and lag descending type have formed;(4)the change levels of urban water supply efficiency and Malmquist productivity in deferent regions in China decrease in the order: east>center>west, which are basically consistent with the regional economic development patterns in our country; furthermore, the technological changes in the eastern region are more prominent than those in the central and western cities;(5)the change level of urban water supply efficiency and Malmquist productivity in cities of different scales in China present the hierarchical difference characteristics, and decrease in the order: large cities>medium cities>small cities, and the technological changes of large cities are more prominent than those of small and medium-sized cities.
- References:
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Last Update:
2020-02-25