Effect of no-flow in the Lower Yellow River on groundwater formation and usage in areas along the banks |
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| Authors: | Jianfeng CAO Xueyan YE Kaijun WANG Jiyi JIANG |
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| Institution: | (1) College of Environment and Resources, Jilin University, Changchun, 130026, China;(2) Hydrology and Water Resource Bureau of Jilin Province, Changchun, 130022, China |
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| Abstract: | Frequent flow cutoff has a serious effect on the eco-environment of the region along the Lower Yellow River. The authors study
the impact on lateral seepage quantity and groundwater cycling caused by cutoff of the Yellow River and compare it with that
of the year 1999 through the numerical simulation model of groundwater flow system of the affected zone. The lateral seepage
quantity decreased 53.8% on flow cutoff stage from Huayuankou to the river entrance and breaking time of 300 d. The lateral
seepage quantity will decrease 46.3% if flow cutoff is from Jiahetan to the river entrance and breaking time is 300 d, and
it will decrease 75.2% if flow cutoff occurs throughout the year. The lateral seepage quantity will decrease 19.8% if flow
cutoff is from Luokou to the river entrance and breaking time is 300 d, and it will decrease 25.1% if flow cutoff occurs throughout
the year. The lateral seepage quantity will decrease 4.7% if flow cutoff is from Lijin to the river entrance and flow cutoff
occurs throughout the year. Flow cutoff of the Yellow River has a minor effect on the shape of groundwater flow domain of
the affected zone. Thus, the boundary condition of the shallow groundwater system will not change. Although flow cutoff has
a major influence on the riverside source fields in the Lower Yellow River, it will not have a significant effect on groundwater
resources macroscopically in the affected zone of the Yellow River due to its large storage capacity.
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Translated from Journal of Jilin University (Earth Science Edition), 2007, 37(5): 937–942 译自: 吉林大学学报(地球科学版)] |
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| Keywords: | no-flow Lower Yellow River lateral seepage quantity of Yellow River groundwater circulation |
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