Measurement Of Water-energy Coupling Relationship And Regional Differentiation Characteristics Of The Yellow River Basin

Being the basic natural and strategic resources,water resources and energy are closely related.With the rapid socioeconomic development,the demand for water resources and energy will continue to increase,the security situation of which is facing huge challenges.Research on the measurement of water-energy coupling relationship and regional differentiation characteristics of the Yellow River Basin has important scientific research value and practical significance for the in-depth understanding of the interaction mechanism between water and energy,and for the guidance of water resources and energy management and precise policy implementation in the Yellow River Basin.In this paper,the Yellow River Basin is selected as the research object,and methods such as spatial auto-correlation analysis,decoupling model,and coupling coordination model are used.Focusing on the Yellow River Basin,the paper quantitatively analyzes its current status and spatial differentiation characteristics of energy and water consumption,the spatial matching pattern of water resources and energy,the decoupling effect of socioeconomic development and water resources and energy,as well as the coupling and coordination of water resources and energy.The paper also objectively describes and evaluates on the relationship between water resources and energy in the Yellow River Basin from time and space scales.The results show:(1)The water-energy of the Yellow River Basin is unbalanced and unmatched in space scale.Inner Mongolia,Shaanxi and Shanxi are relatively concentrated in energy,but water resources in the regions are relatively scarce.The results of the total water consumption of various primary energy sources in the Yellow River Basin are quite different.The water consumption intensity of energy has dropped by 38% from 2.12 to 1.31,which shows water use efficiency has been increasing year by year and the water-energy relationship has gradually improved.(2)In Inner Mongolia,the water consumption intensity of raw coal is in a state of high-high aggregation.In Shaanxi Province,the water consumption intensity of crude oil is in a state of high-low aggregation.And in Shanxi Province,the water consumption intensity of power and primary energy is in a state of high-low aggregation.(3)The total water-energy decoupling state is highly consistent with the efficiency index decoupling state,both presenting from strong to weak.It indicates that energy and water consumption deviate from the socioeconomic relationship,and the efficiency index elasticity value(energy water consumption intensity)is the dominant factor resulting in the total decoupling state of water and energy in the basin.(4)The coupling degree between the water resources and the primary energy system in the Yellow River Basin from 2007 to 2017 is at a minimum of 0.777 and a maximum of 0.999,which has been in a high-level coupling stage;The average coupling coordination degree of the entire basin is 0.691,the level of which is in the junior coordination development.The research results can provide important theoretical basis for the precise implementation of water resources and energy distribution in the Yellow River Basin in the country,and provide certain reference value for promoting the coordinated and efficient use of water and energy in the Yellow River Basin,ensuring the coordinated realization of both water security and energy security in the Yellow River Basin.