汾河流域城市化与水资源耦合协调关系研究

Coupling and Coordination Relationship Between Urbanization and Water Resources in the Fenhe River Basin

通过构建汾河流域城市化与水资源系统指标体系,利用综合评价法对2010—2019年汾河流域城市化和水资源综合水平的变化趋势进行分析,在此基础上构建耦合协调度模型,分析汾河流域城市化与水资源的耦合协调关系。结果表明:汾河流域城市化综合指数整体呈上升趋势,城市化子系统重要程度表现为经济城市化>社会城市化>空间城市化>人口城市化;水资源综合指数呈波动上升趋势,水资源子系统重要程度呈现出水资源利用>水资源水平>水资源保护,水资源环境不断优化,2013年出现短期下降,主要受水资源量和用水量等要素的影响;从时间上看,2010—2019年汾河流域城市化与水资源耦合协调度不断提高,经历了从2010年低水平轻度失调到2019年高水平协调发展过程;空间上,2010—2019年汾河流域六市城市化与水资源耦合协调度不断提升,吕梁、太原、忻州达到良好协调水平,临汾、运城处于勉强协调水平,而晋中则处于磨合阶段的濒临失调水平。

Carrying out the coordinated relationship between urbanization and water resources is of great significance to the ecological protection and high-quality development of the basin.The changing trends of the comprehensive level of the urbanization and water resources from 2010 to 2019 was analyzed in this study using comprehensive evaluation method by constructing two index systems for the urbanization development and the water resources in the Fenhe River Basin.On this basis,the coupling coordination model was constructed to analyze the coupling coordination relationship between urbanization and water resources in the Fenhe River Basin.The results show that the comprehensive urbanization index shows an overall upward trend,and the importance of the urbanization subsystem appears:economic urbanization>social urbanization>spatial urbanization>population urbanization;the comprehensive index of water resources shows a fluctuating upward trend,and the importance of the water resources subsystem appears:water resource utilization>water resource level>water resource protection.The water resources environment is continuously optimized,with a short-term decline in 2013 for the influence of water resource and water consumption and other factors.From a temporal perspective,the coupling coordination degree between urbanization and water resources has been continuously improved from 2010 to 2019 in the Fenhe River Basin.From a spatial perspective,the coupling and coordination degree of urbanization and water resources of the 6 cities in the Fenhe river basin has been continuously improved.Meanwhile,there are regional differences among them:Luliang,Taiyuan and Xinzhou are in good coordination stage;Linfen and Yuncheng are at a barely coordinated stage;and Jinzhong is on the verge of imbalance.This research can provide a theoretical basis and reference for the future coordinated development of water resources and spatial urbanization of the Fenhe River and adjacent basins.