Evidence map›Paper›PMID 41258462›Full record

ArticleScientific reports2025

Relationship between plasticity index and soil erodibility: a case study of central Malaysian tropical soils.

Muhammad Ali Rehman, Norinah Abd Rahman, Ros Nadiah Rosli, Muhammad Noor Hisyam Jusoh, Suraya Sharil, Siti Fatin Mohd Razali

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Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Muhammad Ali RehmanDepartment of Civil Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor, 43600, Malaysia.
Norinah Abd RahmanDepartment of Civil Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor, 43600, Malaysia. norinah@ukm.edu.my.
Ros Nadiah RosliDepartment of Civil Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor, 43600, Malaysia.
Muhammad Noor Hisyam JusohFaculty of Engineering, Technology & Built Environment, UCSI Unniversity, Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur, 56000, Malaysia.
Suraya SharilDepartment of Civil Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor, 43600, Malaysia.
Siti Fatin Mohd RazaliDepartment of Civil Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor, 43600, Malaysia.

Funding

Fundamental Research Grant Scheme (FRGS), Ministry of Higher Education, Malaysia FRGS/1/2021/TK0/UKM/02/11
6 · The paper itself

Abstract

Nations located in tropical rainforest regions, such as Malaysia, face a heightened risk of soil erosion due to persistently warm and humid climates. Soil erodibility (K), a critical parameter in erosion prediction models, is influenced by intrinsic soil properties. Among these, the role of the plasticity index (PI) as a predictor of K remains underexplored in tropical environments, where high-intensity rainfall accelerates erosion processes. This study aims to quantify the relationship between K and PI for tropical soils in Malaysia. A total of 37 soil samples were collected from two locations, Melaka Tengah and the Sungai Langat Basin, in the central region of Malaysia. Laboratory tests were conducted to determine particle size distribution, Atterberg limits, organic matter content, and soil erodibility factors. Linear regression analysis revealed a significant positive relationship between the natural logarithm of the plasticity index (Ln(PI)) and the erodibility factor (K), with the resulting equation K = 0.0236 Ln(PI) - 0.0365. The model showed a strong fit, with a coefficient of determination (R

Indexed as

ErodibilityLiquid limitPlasticity indexRegression analysisSoil textureTropical climate

Identifiers

PMID41258462
PMCPMC12630922

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