Author(s): Pham Huu Sy
Linked Author(s):
Keywords: River bank erosion; Climate change; Sea water level increase
Abstract: The Southern delta is a plain delta formed by deposits of Cuu Long River system together with marine sediments in Pleistocen up to now. There are two main river systems in the plain which are Tien and Hau Rivers. Geological activities of the rivers in this area are mainly lateral erosion in the West-North part and deposition close to the river mouth in the East-South part. Erosion activity causes serious bank collapse and slip in many areas, threatens life and damages infrastructures, leading to economic losses. In the condition of increasing seawater level due to global climate change, changing erosion base will influence temporary balance of erosion–deposition processes, making new erosion places appear. This paper analyses basic theory of geological river activities, mechanism of the erosion and their relations to the increase of seawater level, eventually, proposes ideas for studying and forecasting river bank collapse, suitable long-term solutions for bank protection.
Year: 2014