Journal
APPLIED SCIENCES-BASEL
Volume 9, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/app9050942
Keywords
landslide susceptibility; random forest; boosted regression tree; information gain; landslide susceptibility map
Categories
Funding
- BK21 Plus Project of the Graduate School of Earth Environmental Hazard System
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [NRF-2017R1A2B2009033]
Ask authors/readers for more resources
This study aims to analyze and compare landslide susceptibility at Woomyeon Mountain, South Korea, based on the random forest (RF) model and the boosted regression tree (BRT) model. Through the construction of a landslide inventory map, 140 landslide locations were found. Among these, 42 (30%) were reserved to validate the model after 98 (70%) had been selected at random for model training. Fourteen landslide explanatory variables related to topography, hydrology, and forestry factors were considered and selected, based on the results of information gain for the modeling. The results were evaluated and compared using the receiver operating characteristic curve and statistical indices. The analysis showed that the RF model was better than the BRT model. The RF model yielded higher specificity, overall accuracy, and kappa index than the BRT model. In addition, the RF model, with a prediction rate of 0.865, performed slightly better than the BRT model, which had a prediction rate of 0.851. These results indicate that the landslide susceptibility maps (LSMs) produced in this study had good performance for predicting the spatial landslide distribution in the study area. These LSMs could be helpful for establishing mitigation strategies and for land use planning.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available