| 河流静水滩区潜流带水交换空间分布模式研究（英文） |
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| 引用本文： | 宋进喜,程丹东,张军龙,张永强,龙永清,张妍,申卫博.河流静水滩区潜流带水交换空间分布模式研究（英文）[J].地理学报(英文版),2019(3):377-388. |
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| 作者姓名： | 宋进喜 程丹东 张军龙 张永强 龙永清 张妍 申卫博 |
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| 作者单位： | State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau;Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity;University of Chinese Academy of Sciences;College of Geography and Environment;CSIRO Land and Water |
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| 基金项目： | National Natural Science Foundation of China,No.51679200;No.51379175;Program for Key Science and Technology Innovation Team in Shaanxi Province,No.2014KCT-27;The Hundred Talents Program of the Chinese Academy of Sciences,No.A315021406;Specialized Research Fund for the Doctoral Program of Higher Education,No.20136101110001 |
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| 摘 要： | 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.
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| 关 键 词： | HYPORHEIC WATER exchange thermal method discharge RECHARGE surface water-groundwater interactions |
Estimating spatial pattern of hyporheic water exchange in slack water pool |
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| SONG Jinxi,CHENG Dandong,ZHANG Junlong,ZHANG Yongqiang,LONG Yongqing,ZHANG Yan,SHEN Weibo.Estimating spatial pattern of hyporheic water exchange in slack water pool[J].Journal of Geographical Sciences,2019(3):377-388. |
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| Authors: | SONG Jinxi CHENG Dandong ZHANG Junlong ZHANG Yongqiang LONG Yongqing ZHANG Yan SHEN Weibo |
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| Abstract: | 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. |
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| Keywords: | hyporheic water exchange thermal method discharge recharge surface water-groundwater interactions |
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