Abstract
The landslide inventory helps to develop landslide susceptibility maps which further assist to minimize economic and
human losses as well as towards hazard management. This work investigates landslide hazard mapping in the rugged mountain terrain
vis-a-vis highly economically significant route between China and Pakistan i.e. Karakuram Highway (KKH). KKH is passing through
the Karakorum mountainous region where landslides events occur frequently and prone to serious risk to local travelers, tourists, and
to trading caravans. In this work, landslide inventory was developed (302 landslides) along KKH by visual interpretation of Sentinel
and google images. Field survey was also carried to validate landslide datasets. Traditional knowledge-based model i.e. Analytic
Hierarchy Process (AHP) and data-based models that include Frequency Ratio (FR) and weight of evidence were applied and compared
to develop landslide susceptibility maps (LSM). The landslide dataset was divided into modelling/training (70%) and testing/validation
(30%) datasets. LSMs are validated by Area Under Curve (AUC) criterion. The results show that weight of evidence, AHP and FR
have success rate curves of 61%, 72% and 84%, respectively. In addition, most highly accurate models are validated for their prediction
power using testing landslide datasets. The results for prediction capacity for weight of evidence, AHP and FR are 72%, 58%, and 64%,
respectively. Further, landslide susceptibility index (LSI) maps are classified into susceptibility zones. The validation and prediction
results show that FR model is the most reliable and accurate model for our study area. Our results will be helpful to minimize landslide
hazard losses along KKH, ultimately assisting in successful implementation of CPEC idea between China and Pakistan.
Hasnain Abbas, Aftab Ahmed Khan, Dostdar Hussain, Garee Khan, Syed Najam Ul Hassan, Isma Kulsoom, Sadiqa, Sibghat Ullah Bazai. (2021) Landslide Inventory and Landslide Susceptibility Mapping for China Pakistan Economic Corridor (CPEC)’s main route (Karakorum Highway), Journal of Applied and Emerging Sciences, Volume-11, Issue-1.
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