潮白河流域南水北调水源回灌监测与影响分析

Monitoring and impact analysis of the South-to-North Water Diversion Project artificial groundwater recharge in the Chaobai River Basin

根据规划,南水北调中线工程通水后,利用密云水库调蓄工程,盈余水量可以引入潮白河流域,回补地下水。2015年8月21日至11月3日经京密引水渠的李史山闸,通过小中河、怀河下游首次向潮白河牛栏山橡胶坝地区引水;2015年10月14日至10月28日,经京密引水渠雁栖泄洪闸首次向雁栖河引水。通过在研究区建立地下水监测网络,监测南水北调水源回灌效果,分析评价了回灌对研究区地下水水位和水质的影响。为后续利用地表水与地下水联合调蓄提高北京市供水保证程度提供技术支撑。

According to the program,after the operation of the South-to-North Water Diversion Project,the redundant water can be recharged into underground water in the Chaobai Basin.From August 21 to 11 March in 2015,the first time,the water separate from Jing mi Aqueduct Li Shi-shan sluice by xiaozhong river,Huai River downstream transfer to the Niu Lan-shan rubber dam,and also transfer to the Yanxi River diversion by Yanxi sluice between October 14 to October 28 in 2015.Through establish groundwater monitoring network in the study area,monitoring the effect of the artificial groundwater recharge of the South-to-North Water Diversion Project.The effects of recharge on the groundwater level and water quality in the study area were analyzed and evaluated.In order to provide technical support for subsequent utilize surface water and groundwater joint regulation and storage to improve the water supply guaranteed rate in Beijing.