Nghiên cứu xác định yêu cầu mực nước, lưu lượng phục vụ công tác quản lý và khai thác nguồn nước trên dòng chính sông Cả trong mùa cạn

Abstract

In recent years, trends of river bed evolution are observed in most major rivers in the country such as the Red River, the Ma River, the Ca River, etc., making management and exploitation of riverine irrigation systems (especially sluices and pumping stations) in the water abstraction periods very difficult. Although the inter-reservoir operation rules have been issued for all the large river basins, the regulations on the control points of minimum water level and discharge as a basis for managers and operators to develop their business plan and operation plan are only available for the Red River Basin. For other river basins, such as Ca river basin, the regulations on minimum release of the irrigation and hydropower reservoirs are made available only, without downstream control points. This study applies different approaches including survey to collect data and information, mathematical modeling, consultation to determine suitable control points, and minimum value of water discharge and water level during stressful water supply periods (i.e., periods 4 and 5 from April 1 to July 19), based on which water resources management and abstraction on the Ca river mainstream can be informed and implemented in low flow season.