浙北引水对钱塘江河口段主要水环境的影响分析

Impact of water diversion from Xinanjiang Reservoir to north Zhejiang Province on water environment at Qiantang Estuary

基于实测资料相关分析以及一维咸水入侵模型,分析了浙北引水对钱塘江河口段江道淤积和咸水入侵的影响.结果表明,浙北引水将减少进入河口的径流量,造成钱塘江河口淤积的增加和盐水上溯距离加长,且对不同位置取水口的取水条件有着不同程度的影响.

Based on the correlative analysis of field data and one-dimensional numerical model for saltwater intrusion, the impact of water diversion from Xinanjiang Reservoir on river course silting and saltwater intrusion at Qiantang Estuary was discussed. The result demonstrates that water diversion reduces the runoff volume toward the estuary and makes silting and saltwater intrusion at the river estuary more serious. Besides, it also causes different negative influences on water intake condition at different water intakes.