Tình hình hạ thấp mực nước trên hệ thống sông Hồng và các giải pháp để thích ứng

Abstract

The article summarizes the research results of the Red River riverbed lowering situation and adaptation measures, showing that the construction of upstream reservoirs has retained a significant amount of sediment, plus uncontrolled sand mining is the cause of the riverbed lowering. According to recent research data shows that, on the Red River at the Son Tay section, comparing 2001 with 2009 was lowered by 2.0 m, from 2010 to now, about 14cm lower; from 2000 to 2013, the Duong river lowered 3.27m; Thai Binh river, the section from Pha Lai to Vinh Lap, is lowered by 1.73m; Van Uc river is lowered by 1.38m. The lowering of the riverbed has had significant impacts on the exploitation and use of water on the Red River system. It is necessary to study the sediment balance and propose solutions to cope in the immediate period to overcome the situation of lowering the riverbed.