Performance Evaluation of Five GIS-Based Models for Landslide Susceptibility Prediction and Mapping: A Case Study of Kaiyang County, China

Yigen Qin, Genlan Yang, Kunpeng Lu, Qianzheng Sun, Jin Xie and Yunwu Wu
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Yigen Qin: Guangdong Provincial Key Laboratory of Geodynamics and Geohazards, School of Earth Sciences and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
Genlan Yang: College of Resource and Environment Engineering, Guizhou University, Guiyang 550025, China
Kunpeng Lu: College of Resource and Environment Engineering, Guizhou University, Guiyang 550025, China
Qianzheng Sun: 104 Geological Brigade, Bureau of Geology and Mineral Exploration and Development of Guizhou Province, Duyun 558000, China
Jin Xie: College of Resource and Environment Engineering, Guizhou University, Guiyang 550025, China
Yunwu Wu: Guizhou Kaiyang Economic Development Industry Investment and Development Co. Ltd., Guiyang 550300, China

Sustainability, 2021, vol. 13, issue 11, 1-20

Abstract: This study evaluated causative factors in landslide susceptibility assessments and compared the performance of five landslide susceptibility models based on the certainty factor (CF), logistic regression (LR), analytic hierarchy process (AHP), coupled CF–analytic hierarchy process (CF-AHP), and CF–logistic regression (CF-LR). Kaiyang County, China, has complex geological conditions and frequent landslide disasters. Based on field observations, nine influencing factors, namely, altitude, slope, topographic relief, aspect, engineering geological rock group, slope structure, distance to faults, distance to rivers, and normalized difference vegetation index, were extracted using the raster data model. The precision of the five models was tested using the distribution of disaster points for each grade and receiver operating characteristic curve. The results showed that the landslide frequency ratios accounted for more than 75% within the high and very high susceptibility zones according to the model prediction, and the AUC evaluating precision was 0.853, 0.712, 0.871, 0.873, and 0.895, respectively. The accuracy sequencing of the five models was CF-LR > CF-AHP > LR > CF > AHP, indicating that the CF-AHP and CF-LR models are better than the others. This study provides a reliable method for landslide susceptibility mapping at the county-level resolution.

Keywords: landslide susceptibility; certainty factor; logistic regression; analytic hierarchy process (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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