黄河流域粮食—生态—能源安全的协调发展差异及障碍因素分析OACHSSCD

This research aims to rationally assess and analyse the coupling and coordinated relationships,regional differences and obstacles to the level of development of food security,ecological security and energy security in the Yellow River Basin.Based on the coupling coordination model,Dagum-Gini coefficient and the obstacle degree model,this research analyzed the level of integrated development of food-ecology-energy security,the coupling coordination relationship,regional differences and obstacle factors in the Yellow River Basin from 2010 to 2021.The results showed:(1)The integrated development level of the food-ecology-energy security system in the Yellow River Basin showed a steady upward trend,with a spatial distribution characterized by higher levels in the middle and lower reaches and lower level in the upper reaches.The development levels of food security and energy security were relatively high,showing a steady upward trend and a fluctuating downward trend respectively,while the development level of ecological security was relatively low and presented a fluctuating upward trend.(2)The coupling coordination degree of the food-ecology-energy security system in the Yellow River Basin showed a steady upward trend in time,with spatially higher coordination in the middle and lower reaches and lower coordination in the upper reaches.The types of coupling coordination were mainly concentrated in three levels:approaching imbalance,barely coordinated and initially coordinated.Most provinces in the middle and lower reaches have achieved a leap in the coupling coordination level over time,while a small number of provinces in the upper reaches have not,but their coupling coordination degree still showed an upward trend.(3)The difference in the integrated development level of the food-ecology-energy security system in the Yellow River Basin showed an upward and then a downward trend,and the difference mainly came from inter-regional and intra-regional differences.The intra-regional differences followed the order of upper reaches>lower reaches>middle reaches,and the inter-regional differences were manifested in the relatively large differences between the upper reaches and the middle reaches and lowerreaches respectively.Among the subsystems,the difference in ecological security development level was the smallest;the differences in food security and ecological security development levels were on the decline,while the difference in energy security development level was rising.(4)The analysis of obstacle factors indicated that the main obstacles came from the ecological security criterion layer.The obstacle effects of indicators such as per capita disposable income of residents has gradually weakened.Investment in industrial waste gas pollution control has been the primary long-term obstacle factor.Indicators like investment in industrial wastewater pollution control had a high frequency of being identified as obstacles.In summary,stabilizing food supply,strengthening ecological protection and optimising energy supply structure are effective ways to enhance the food-ecology-energy security coupling coordination relationship and promote the synergistic development of food-ecology-energy in the Yellow River Basin.