引黄入冀补淀工程对地表水环境影响预测

为缓解河北省地下水超采状况及向白洋淀实施生态补水,修建引黄入冀补淀工程。利用所建位山引黄入冀工程模型相关试验参数及其他相关研究成果对研究设置的6个情景方案进行了模拟分析,研究此次工程对输水沿线及受水区白洋淀的地表水环境影响。结果表明:在实施输水沿线水污染治理后,多年平均情况下,当引水口水质满足其水功能区水质目标要求时,输水沿线各断面水质除TN外可达到Ⅲ类水质标准,引黄入冀补淀工程可有效改善沿线及入白洋淀地表水环境。由运行初期所存在的问题建议入白洋淀断面设置水质自动监测站,一旦水质超标应立即停止向白洋淀引水,确保初期输水安全。

Prediction of effect of Yellow River-to-Baiyangdian Water Transfer Project on surface water environment

The Yellow River-to-Baiyangdian Water Transfer Project will be built in order to alleviate the groundwater over-exploitation in Hebei Province and to provide ecological water supplement to the Baiyangdian area. Using the relevant parameters regarding the Weishan Yellow River-to-Hebei Water Transfer Project and other related research results, analysis and simulation were carried out to examine six scenario plans developed in this study, in order to investigate the effect of the project on the surface water environment along the water transfer routes and in the Baiyangdian area. The results are as follows: after the implementation of water pollution control along the water transfer routes and when the water quality at the intake meets the requirements of the water function area, multi-year averages of water quality indicators at cross-sections along the route can meet all grade III standards except for total nitrogen. In addition, the Yellow River-to-Baiyangdian Water Transfer Project can effectively improve the surface water environment along the water transfer routes and in the Baiyangdian area. It is suggested that automatic water quality monitoring stations should be set up at the cross-sections in order to solve the existing problems in the initial period of operation. Once the water quality exceeds the standards, water transfer into the Baiyangdian area should be stopped immediately to ensure water safety during the initial period.