Landslide Susceptibility Assessment in Quang Nam Province Using Statistical Index and Analytical Hierarchical Process

More than 70% of the areas of Quang Nam province are mountainous terrain with heavy and seasonal rainfall. In recent years, economic activities and the work of humans have increased dramatically, destroying vegetation cover, and causing the natural environment to change significantly, which promotes the occurrences, development, and increase of landslides. This research uses the statistical index to determine the weight of each class in each factor and an analytical hierarchical process (AHP) to determine the weight of factors. A landslide susceptibility assessment map was established by integrating the factor maps. The result showed that landslide susceptibility in Quang Nam was categorized as 28.53% for low and very low; 39.66% for moderate, and 31.82% for high and very high.