Volume 29, Issue 1 (Spring 2025)
jwss 2025, 29(1): 97-110 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Karimi Shiasi J, Fotouhi Firoozabad F, Fathzadeh A, Hayatzadeh M, Shirmardi M. Investigation of Changes in Soil Erodibility Using the USLE Model and Determination of Effective Factors (Case Study: Dorahan Watershed-Borujen City). jwss 2025; 29 (1) :97-110
URL: http://jstnar.iut.ac.ir/article-1-4438-en.html
URL: http://jstnar.iut.ac.ir/article-1-4438-en.html
Department of Nature Engineering, Faculty of Agriculture and Natural Resources, Ardakan University, Ardakan, Iran. , f.fotouhi@ardakan.ac.ir
Abstract: (31 Views)
One of the main factors contributing to water erosion is the inherent characteristic of soil erodibility. Erodibility depends on particle size distribution, organic matter, structure, and soil permeability. This research aimed to investigate changes in the soil erodibility factor across geomorphological facies. The soil erodibility index was estimated by sampling 58 points within the geomorphological facies of the Dorahan watershed, using the Wischmeyer and Smith method. In the laboratory, soil granularity distribution, organic matter, soil structure, the amount of gravel, lime, salinity, acidity, and sodium absorption ratio were measured. Results indicated that soil erodibility across the entire area ranges from 0.0148 to 0.0661 (t.hr/Mj.mm). The soil erodibility index (K) for the hro-p1 and hro-p2 facies is higher than for others and exhibits the widest range of variations compared to the other facies. The lowest range of changes within geomorphological facies is associated with the hrc facies. The erodibility index decreases from the east to the west of the basin due to the presence of exposed rock faces, which protect the soil as a cover layer.
Type of Study: Research |
Subject:
Ggeneral
Received: 2024/07/18 | Accepted: 2025/01/7 | Published: 2025/04/30
Received: 2024/07/18 | Accepted: 2025/01/7 | Published: 2025/04/30
| Rights and permissions | |
 | This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
