谢蕾蕾, 邢凯悦, 位艳佳.黄河中下游沿黄城市水资源承载力贴近度空间结构及作用机理Journal of Water Resources and Water Engineering[J].,2023,34(1):50-57
黄河中下游沿黄城市水资源承载力贴近度空间结构及作用机理
Spatial structure and function mechanism of water resources carrying capacity closeness of cities along the middle and lower reaches of the Yellow River
The method of closeness degree was used to measure water resources carrying capacity of cities along the middle and lower reaches of the Yellow River, so as to investigate the spatial characteristics and function mechanism of water resources closeness degree. The results show that the carrying capacity of urban water resources in the middle and lower reaches of the Yellow River is generally low, resulting in the acute contradiction between the supply and demand of urban water resources in most cities in this area, especially the ones in the lower reaches. From the perspective of spatial structure characteristics, the water resources carrying capacity of 31 cities along the Yellow River presents spatial autocorrelation characteristics as a whole, and most cities show no differentiation characteristics, except that there are a few hot spots in some cities in the middle reaches of the basin and some low-lying areas in some cities in the lower reaches, especially in Henan Province. The analysis of the spatial function mechanism of urban water resources carrying capacity closeness shows that the urban water resources carrying capacity in the middle reaches of the basin is affected by five factors, namely, driving force (D), pressure (P), state (S), influence (I) and management (M). Moreover, water resources is in a state of spatial competition rather than spatial coordinated development, due to the spatial siphon effect between cities. However, the urban water resources carrying capacity in the lower reaches is only affected by D, S and I. The research results can provide some reference for the decision-making of strengthening water resources management and optimizing urban development mode in cities along the Yellow River.