河流静水滩区潜流带水交换空间分布模式研究（英文）

编号 zgly0001660572

文献类型 期刊论文

文献题名 河流静水滩区潜流带水交换空间分布模式研究（英文）

作者 宋进喜  程丹东  张军龙  张永强  龙永清  张妍  申卫博 

作者单位 StateKeyLaboratoryofSoilErosionandDrylandFarmingontheLoessPlateau  InstituteofSoilandWaterConservation  CAS&MWR  ShaanxiKeyLaboratoryofEarthSurfaceSystemandEnvironmentalCarryingCapacity  CollegeofUrbanandEnvironmentalScie 

母体文献 Journal of Geographical Sciences 

年卷期 2019年03期

年份 2019 

分类号 P641.132 

关键词 hyporheicwaterexchange  thermalmethod  discharge  recharge  surfacewater-groundwaterinteractions 

文摘内容 Hyporheic zone(HZ) influences hydraulic and biogeochemical processes in and alongside streams, therefore, investigating the controlling geographic factors is beneficial for understanding the hydrological processes in HZ. Slack water pool (SWP) is an essential micro-topographic structure that has an impact on surface water and groundwater interactions in the HZ during and after high flows. However, only a few studies investigate HZ surface water and groundwater exchange in the SWP. This study used the thermal method to estimate the HZ water exchange in the SWP in a segment of the Weihe River in China during the winter season. The findings show that on the flow-direction parallel to the stream, river recharge dominates the HZ water exchange, while on the opposing flow-direction bank groundwater discharge dominates the water exchange. The water exchange in the opposing flow-direction bank is about 1.6 times of that in the flow-direction bank. The HZ water exchange is not only controlled by flow velocity but also the location and shape of the SWP. Great water exchange amount corresponds to the shape with more deformation. The maximum water exchange within the SWP is close to the river bank where the edge is relatively high. This study provides some guidelines for water resources management during flooding events.