关键词: 北运河, 运河核心区, 来水量, 生态需水量, 可利用量

Abstract: Based on the analysis of the catchment relationship in the core area of the North Canal and the historical changes of the Beiguan flood control project, the hydrological data of Beiguan sluice and Gaobeidian station of Tonghui River from 1981 to 2018 were collected, and the precipitation, water inflow in different periods, ecological water demand and downstream water consumption in the control basin and available water quantity were calculated. The result indicates that the surface water resources in the core area of the canal were abundant and the inflow was relatively stable.The degree of available water resources was relatively high. The research results could have reference significance for regional scientific water intake and sustainable utilization of water resources as well as the effective practice of related industries.

Key words: the North Canal, canal core area, inflow, ecological water demand, available water resources