Geomorphic features explain spatial patterns of landslides in Northern Vietnam
DOI:
https://doi.org/10.64862/Keywords:
geomorphometry, hillslope, mass movement, geohazard, landslideAbstract
The key triggering factor of landslide formation is excessive rainfall. However, other predisposing factors influence landslide formation intensity, clustering, and features. Topography belongs to the most important yet understudied factors controlling landslide activity and characteristics. We selected two regions in northern Vietnam and used extensive landslide datasets to explore potential terrain features and geomorphometric characteristics that might have been interpreted as predisposing agents of landslides. In Ho Bon and Xuan Minh regions, elevation, hillslope steepness, potential soil wetness, and slope height were the most important factors, differentiating regions and indicating the high occurrence of landslide forms. The results could aid different spatial prediction models and help to construct more robust landslide susceptibility maps.
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