[1]TU Tao,ZHU Qingying,MEI Yun,et al.Spatio-temporal Pattern Changes and Optimal Strategies of Provincial Ecological Efficiency in China[J].Research of Soil and Water Conservation,2022,29(02):380-388.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 02
Page number:
380-388
Column:
Public date:
2022-03-20
- Title:
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Spatio-temporal Pattern Changes and Optimal Strategies of Provincial Ecological Efficiency in China
- Author(s):
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TU Tao, ZHU Qingying, MEI Yun, CHEN Yinrong
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(College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China)
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- Keywords:
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regional ecological efficiency; malmquist-super efficiency SBM model; input-output relaxation rate; spatial autocorrelation; optimal strategies
- CLC:
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X821
- DOI:
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- Abstract:
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In order to explore the optimization of regional ecological efficiency, the Malmquist-super-efficiency SBM model was used to measure Chinese provincial ecological efficiency from 2005 to 2016. Then, the composition of the regional ecological efficiency and causes of inefficiency were measured by Malmquist index and the factor of input-output relaxation rate respectively. In addition, the spatio-temporal dynamic characteristics of regional ecological efficiency were explored by the Spatial Autocorrelation Methods. Finally, the corresponding regional ecological efficiency optimal strategies were put forward based on aforementioned analysis. The results showed that:(1)the regional ecological efficiency of all studied areas presented a gradient distribution pattern of ‘East> Central> West'; and expect Beijing, Shanghai, Hunan and Chongqing, the ecological efficiency of most provinces and cities had shown a downward trend over years.(2)results of the decomposition of Malmquist index indicated that changes in technical efficiency and technological progress had little effects on regional ecological efficiency at most of provinces and cities, but changes in technical efficiency of four provinces in the western region had a positive effect on ecological efficiency, they are Sichuan, Yunnan, Qinghai and Xinjiang, at meanwhile, the changes in technological progress and technological efficiency both had a positive effect on ecological efficiency in Beijing and Guizhou.(3)the low ecological efficiency were ascribed to the contrasting redundancy rate of each factors including labor, energy, land and water resources, and excessive undesired output, and it is most serious in West, followed by Central and East.(4)the regional ecological efficiency presented an obvious spatial positive correlation, and its spatial correlation pattern was relatively stable over time, but there were some noticeable changes at local scale. There were different aspects and degrees of improvement of input-output factors in different provinces and cities, and the regional ecological efficiency could be promoted by strengthening management and technological innovation, optimizing the input-output structure, and coordinated regional governance.