ORIGINAL RESEARCH
Multivariate Logistic Regression Model
for Soil Erosion Susceptibility Assessment
under Static and Dynamic Causative Factors
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1
Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS,
32610 Seri Iskandar, Perak, Malaysia
2
Department of Water Resources and Environmental Engineering, University of Ilorin,
PMB 1515, Ilorin, Kwara State, Nigeria
3
Centre for Urban Resource Sustainability, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS,
32610 Seri Iskandar, Perak, Malaysia
4
Department of Earth Sciences, Quaid-i-Azam University, 45320 Islamabad, Pakistan
5
Faculty of Industrial Management, Universiti Malaysia Pahang, 26300 Gambang, Pahang, Malaysia
Submission date: 2018-02-01
Final revision date: 2018-05-27
Acceptance date: 2018-06-03
Online publication date: 2019-05-07
Publication date: 2019-05-28
Corresponding author
Abdulkadir Taofeeq Sholagberu
Universiti Teknologi PETRONAS, Department of Civil & Environmental Engineering, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Malaysia
Pol. J. Environ. Stud. 2019;28(5):3419-3429
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ABSTRACT
Soil erosion is a devastating land degradation process that needs to be spatially analyzed for
identification of critical zones for sustainable management. Geospatial prediction through susceptibility
analysis assesses the occurrence of soil erosion under a set of causative factors (CFs). Previous studies
have considered majorly static CFs for susceptibility analysis, but neglect dynamic CFs. Thus, this study
presents an evaluation of erosion susceptibility under the influence of both non-redundant static and
dynamic CFs using multivariate logistic regression (MLR), remote sensing and geographic information
system. The CFs considered include drainage density, lineament density, length-slope and soil erodibility
as static CFs, and land surface temperature, soil moisture index, vegetation index and rainfall erosivity
representing the dynamic CFs. These were parameterized to establish geospatial relationships with
the occurrence of erosion. The results showed that length-slope had the highest positive impact on the
occurrence of erosion, followed by lineament density. During the MLR classification process, predicted
accuracies for the eroded and non-eroded locations were 89.1% and 83.6% respectively, with an overall
prediction accuracy of 86.6%. The model’s performance was satisfactory, with 81.9% accuracy when
validated using the area-under-curve method. The output map of this study will assist decision makers in
sustainable watershed management to alleviate soil erosion.