QUANTIFICATION OF WATER EROSION USING THE RUSLE MODEL: Case of a zone in the Ankazobe district, Analamanga Region, MADAGASCAR

Anjatiana RAKOTOARIMALALA; Raymond RAKOTONDRAZAFY; Patrick Heritsalamarivo RABE; Voahangy RATRIMO

QUANTIFICATION OF WATER EROSION USING THE RUSLE MODEL: Case of a zone in the Ankazobe district, Analamanga Region, MADAGASCAR

July 2025

Vol-11, Issue-4

Paper ID: 27129

ISSN: 2395-4396

Downloads: 0

Abstract & Details

Research Area

PhD in geomatics and soil science

Keywords

Water erosion RUSLE GIS soil loss Madagascar Ankazobe District land degradation

Abstract

Water erosion is one of the most alarming soil degradation processes globally, with severe consequences on agricultural productivity and ecosystem sustainability. In Madagascar, particularly in the central highlands, erosion is especially severe. This study aims to quantify water erosion intensity in a selected zone of the Ankazobe district, Analamanga Region, Madagascar, using the RUSLE (Revised Universal Soil Loss Equation) model. The model integrates five key factors: rainfall erosivity (R), soil erodibility (K), topography (LS), vegetation cover (C), and conservation practices (P). These factors were calculated and mapped using GIS techniques and remote sensing data. The results indicate that erosion rates range from 0 to over 200 t/ha/year, with significant losses observed in steep slope areas and zones with degraded vegetation. This assessment highlights critical areas for land management interventions to reduce soil loss and enhance agricultural sustainability.

License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Author Information

#	Name	Institute / Affiliation
1	Anjatiana RAKOTOARIMALALA	Doctoral School of Earth Sciences and Evolution, Faculty of Sciences and Technologies, University of Antananarivo, Madagascar
2	Raymond RAKOTONDRAZAFY	Full Professor, Doctoral School of Earth Sciences and Evolution, Faculty of Sciences and Technologies, University of Antananarivo, Madagascar
3	Patrick Heritsalamarivo RABE	Doctor at the Vontovorona Polytechnic School, Specialization in Geology Engineering ,Madagascar
4	Voahangy RATRIMO	Dr HAB, Doctoral School INGE , University of Antananarivo, Madagascar

How to Cite

Use the following formats to cite this article in your research.

APA Style

RAKOTOARIMALALA, Anjatiana, RAKOTONDRAZAFY, Raymond, RABE, Patrick Heritsalamarivo, & RATRIMO, Voahangy (2025). QUANTIFICATION OF WATER EROSION USING THE RUSLE MODEL: Case of a zone in the Ankazobe district, Analamanga Region, MADAGASCAR. International Journal of Advance Research and Innovative Ideas In Education, 11(4), 1066-1077.

MLA Style

RAKOTOARIMALALA, Anjatiana, et al. "QUANTIFICATION OF WATER EROSION USING THE RUSLE MODEL: Case of a zone in the Ankazobe district, Analamanga Region, MADAGASCAR." International Journal of Advance Research and Innovative Ideas In Education, vol. 11, no. 4, 2025, pp. 1066-1077.

IEEE Style

Anjatiana RAKOTOARIMALALA, Raymond RAKOTONDRAZAFY, Patrick Heritsalamarivo RABE, and Voahangy RATRIMO, "QUANTIFICATION OF WATER EROSION USING THE RUSLE MODEL: Case of a zone in the Ankazobe district, Analamanga Region, MADAGASCAR," International Journal of Advance Research and Innovative Ideas In Education, vol. 11, no. 4, pp. 1066-1077, 2025.

Vancouver Style

RAKOTOARIMALALA Anjatiana, RAKOTONDRAZAFY Raymond, RABE Patrick Heritsalamarivo, RATRIMO Voahangy. QUANTIFICATION OF WATER EROSION USING THE RUSLE MODEL: Case of a zone in the Ankazobe district, Analamanga Region, MADAGASCAR. International Journal of Advance Research and Innovative Ideas In Education. 2025;11(4):1066-1077.

Harvard Style

RAKOTOARIMALALA, Anjatiana, RAKOTONDRAZAFY, Raymond, RABE, Patrick Heritsalamarivo, & RATRIMO, Voahangy (2025) 'QUANTIFICATION OF WATER EROSION USING THE RUSLE MODEL: Case of a zone in the Ankazobe district, Analamanga Region, MADAGASCAR', International Journal of Advance Research and Innovative Ideas In Education, 11(4), pp. 1066-1077.

Chicago Style

RAKOTOARIMALALA, Anjatiana, et al. "QUANTIFICATION OF WATER EROSION USING THE RUSLE MODEL: Case of a zone in the Ankazobe district, Analamanga Region, MADAGASCAR." International Journal of Advance Research and Innovative Ideas In Education 11, no. 4 (2025): 1066-1077.

Turabian Style

RAKOTOARIMALALA, Anjatiana, et al. "QUANTIFICATION OF WATER EROSION USING THE RUSLE MODEL: Case of a zone in the Ankazobe district, Analamanga Region, MADAGASCAR." International Journal of Advance Research and Innovative Ideas In Education 11, no. 4 (2025): 1066-1077.