宁夏艾依河银川段河湖水与地下水水量转换研究

为了掌握艾依河在银川市段排泄两岸地下水或对两岸地下水的补给情况,选择具有代表性的河段,建设河道水位、两岸地下水位监测断面2处,试验监测不同时段河道水位与两岸地下水位的关系。试验监测结果分析表明:部分河段河道水位长期高于两岸地下水位,河道年补给两岸地下水量达到80.6万m3/km,抬高了河道两岸地下水位,造成河道两岸土壤盐渍化较重;部分河段河道水位低于两岸地下水位,河道承担地下水的排泄,年排泄地下水量2.558万m3/km。研究成果可为艾依河水量调度、两岸土壤盐渍化的防治提供技术支撑。

Study on water exchange between river lake and groundwater in Yinchuan section of Aiyi river

In order to master the recharge situation between the two sides of the Aiyi river and groundwater in Yinchuan section,the paper selected the representative section of the river and built two monitoring sections of water level of river and groundwater on both sides of the river,and monitored the relationship between river water level and groundwater level in different time.The results show that in certain sections of the river, the water level of river is higher than that of groundwater level in long term, the amount of water recharge of river to underground reach 806000 m³/km,which enhanced the underground level on the two sides of river and resulted in the more serious salinization river soil ; in another section of the river, the water level of river is lower than that of groundwater, the river undertakes the discharge of groundwater which achieves 25580 m³/km every year. The result can provide technical support for the water regulation and soil salinization prevention and treatment on both sides of the Aiyi river.