Research on the spatiotemporal characteristics and obstructive factors of urban resource and environmental carrying capacity in the Yellow River Basin
This study uses 72 prefecture-level and above cities in the Yellow River Basin as research samples to comprehensively evaluate the resource and environmental carrying capacity from 2013 to 2022.It analyzes the spatiotemporal evolution characteristics,regional disparities,and identifies the obstructive factors.The results show that:First,over the past decade,the urban resource and environmental carrying capacity in the Yellow River Basin has fluctuated but generally increased,with an average annual growth rate of 1.05％.The trend of multipolarization has weakened,forming a gradient distribution pattern of"higher in the east and lower in the west"with the center of gravity located near the boundary of the middle and lower reaches,showing signs of migration toward the northwest.Second,the Gini coefficient for resource and environmental carrying capacity within the cities of the Yellow River Basin has fluctuated downward,leading to a reduction in overall disparities.The middle reaches exhibit the most significant intra-regional disparities,while intra-regional disparities in the lower reaches have expanded.Inter-regional disparities between the upper and lower reaches are minimal,at 0.058,with the middle reaches showing the greatest reduction in inter-regional disparities with the upper reaches,amounting to 5.88％.The average contribution rate of hyper variable density is 39.37％,much higher than the contribution from intra-regional disparities(32.37％)and inter-regional disparities(28.26％),making it the core source of regional disparities.Third,the main obstacles to improving the urban resource and environmental carrying capacity in the Yellow River Basin stem from resource carrying capacity and socio-economic support.The specific obstructive factors include the proportion of built-up areas,per capita water resources,average number of hospital beds per thousand people,per capita regional GDP,and per capita total fixed asset investment in society.The study suggests improving the resource and environmental carrying capacity of cities in the Yellow River Basin through three approaches:implementing policies suited to local conditions,enhancing mechanisms for regional collaboration,and optimizing industrial structure adjustments to narrow regional disparities.
resource and environmental carrying capacityspatiotemporal evolutionregional disparitiesobstructive factorsYellow River Basin
万方数据
