Đánh giá đặc trưng hình thái lưu vực suối đến sự hình thành lũ bùn đá khu vực miền núi phía Bắc

Abstract

Due to their potential devastation, flash floods have increasingly caused tremendous losses to humans and the economy in Vietnam, especially in small basins in mountainous areas. Flash flood events are characterized by occurring suddenly in a short period, fast-moving flow, and containing a large quantity of debris and wood. As a result, it has the considerable potential of devastating nature. One typical type of flash flood is known as a debris flow, which has the most potential devastation. Because it is a fast-moving flow of water, debris, and wood; it frequently occurs in small basins with short streams and steep slopes. This study aims at characterizing the principal features of debris flow basins using data from field surveys and Google Earth interpretation in 33 debris flow basins in the northern region of Vietnam. The characteristics of debris flow provide scientific evidence-based information to interpret the causes, mechanisms, and processes of debris flow, thus supporting the prevention and mitigation of the debris flow disasters.