Analysis of Coupling Coordination Between Industrial Water Resources Efficiency and Economic Development Level in Anhui Province
The coordinated development of industrial water resources efficiency and economic de-velopment level is an important guarantee for the high-quality development of Anhui.The Super-SBM model was used to estimate the industrial water resources efficiency of 16 cities in Anhui Province from 2012 to 2021.The economic development level evaluation index system was con-structed from three dimensions:economic scale,economic potential and economic vitality,and the economic development level was calculated by entropy weight-comprehensive index method.The coupling coordination degree model was introduced to explore the relationship between indus-trial water resources efficiency and economic development level,and the Dagum Gini coefficient was used to analyze the sources of spatial differences.The results showed that:From 2012 to 2021,the industrial water resource efficiency in Anhui was on the rise and remained in a state of ineffectiveness,Hefei was in a state of supereffect,and Huainan was on the decline instead of ri-sing.The coupling coordination degree between industrial water resources efficiency and economic development level of Anhui province has been promoted from the moderate imbalance decline type to the verge of imbalance decline type,and the coupling coordination degree of each city has in-creased,and the inter-regional development is unbalanced.The overall Gini coefficient of Anhui coupling coordination degree showed a downward trend,and central Anhui dominated the intra-regional differences,and the intra-regional spatial differences contributed the most.
industrial water resources efficiencyeconomic levelcoupling coordinationGini coef-ficient