Study on Groundwater Dynamics and Its Coupling Coordination with Social Economy in Main Basins of the Fenhe River
In order to grasp the dynamic development law of groundwater in the Fenhe River Basin under the new situation,improve the lever of groundwater resources protection and management,and promote the high-quality development between groundwater and social economy,based on the confined groundwater depth data of Taiyuan and Linfen basins from 2010 to 2019,this paper analyzed the spatio-temporal varia-tion of groundwater and used nonparametric tests and grey correlation methods to study the relationship between groundwater depth and influ-encing indicators,and finally,the coupling coordination trend between groundwater and socio-economic development were discussed through coupling coordination model.The results show that the annual average groundwater level shows a fluctuating rising trend from 2010 to 2019,and spatially,the area of rising groundwater level is much larger than that of decreasing in Taiyuan and Linfen basins,with accounting for 71.1%and 50.1%,respectively.Human activities such as the sown area of grain crops,average water consumption per hectare for farmland irrigation,groundwater consumption have the greatest influence on groundwater depth,which are positively correlated,while population,eco-nomic indicators and precipitation are negatively correlated with groundwater depth.The coupling coordination degree is gradually increasing between groundwater and socio-economic development in two basins,both of which shift from disorder in 2010 to well coordinated coupling in 2019.The research indicates that the confined groundwater level has rebounded with the implementation of groundwater treatment and protec-tion measures in recent years,and synergistic development can be achieved between groundwater system affected by multiple factors and re-gional social economy.
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