Đánh giá toàn diện và đề xuất giải pháp chống chịu với hạn hán, xâm nhập mặn và khai thác nước thượng nguồn đến hạ lưu sông Vu Gia - Thu Bồn thuộc thành phố Đà Nẵng

Abstract

The Vu Gia - Thu Bon river system is one of eight large river basins in Vietnam with a total annual flow of over 10 billion m3 of water. In recent years, the impact of climate change and sea level rise, the depletion of watersheds, or the construction of a series of major upstream hydropower projects have altered the flow of water downstream. This leads to frequent droughts and saline intrusion and has a great impact on irrigation water supply for the agricultural sector and especially downstream water supply. This problem causes many difficulties and challenges for the water supply sector in Da Nang and Quang Nam, especially in Danang, a large urban area with high population growth rate in recent years. Therefore, a comprehensive study and assessment of a comprehensive wing to identify the main factors affecting the surface water resources in this river basin from which to propose suitable response solutions is very necessary. This article will present some key findings on this issue.