Subbasin Prioritization Based on The Morphometric Parameters and Sediment Yield Using Geospatial Analysis: A Case Study of Tamor Basin, Nepal

Animesh Khadka; Ravi Acharya; Suman Thapa

Subbasin Prioritization Based on The Morphometric Parameters and Sediment Yield Using Geospatial Analysis: A Case Study of Tamor Basin, Nepal

Abstract

This research article presents a case study of watershed prioritization based on morphometric parameters and sediment yield in the Tamor basin of eastern Nepal using geospatial analysis. In this research, watershed prioritization was done by dividing into 8 sub watersheds. The SRTM DEM was used for the analysis of morphometric parameters such as linear, arial and relief whereas the data’s such as rainfall, soil map, slope map, LANDSAT 7 image and landcover map were used to determine the sediment yield in the study area. The compound values were estimated for the prioritizing the subbasin of the watershed by morphometric parameters. The subbasin 1 and Subbasin 2 had lowest value of 2.67 and 1.67 respectively which means that it falls under highly priority. The higher priority for this subbasin was due to higher drainage density, lower bifurcation ratio and higher Ruggedness number. The subbasin 7 and Subbasin 6 falls under lower priority with the compound values of 5.22 and 4.33 respectively. The lower priority was due to lower drainage density, bifurcation ratio and lower Ruggedness number. The sediment yield was maximum in the upper reaches of the basin i.e., subbasin 1 and subbasin 2 with the average yield of 26.9 million Tons/year and 18.1 million Ton/Year. The sediment yield was seen minimum in the subbasin 7 with the figure of 5.5 million Tons/year. Based on the sediment yield, the subbasin 2 should be prioritized at the top and subbasin 7 should be least prioritized. The contribution of the sediment by subbasin 2and subbasin 7 to the Tamor watershed were 27% and 5% respectively.

Keywords

References

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Details

Primary Language

English

Subjects

Sustainable Agricultural Development

Journal Section

Research Article

Authors

Animesh Khadka ^*
Nepal

Ravi Acharya This is me
Nepal

Suman Thapa This is me
Nepal

Publication Date

June 30, 2026

Submission Date

January 14, 2026

Acceptance Date

May 30, 2026

Published in Issue

Year 2026 Volume: 10 Number: 1

IZ

https://izlik.org/JA77JU65EW

Cite

RIS / Bibtex

APA

Khadka, A., Acharya, R., & Thapa, S. (2026). Subbasin Prioritization Based on The Morphometric Parameters and Sediment Yield Using Geospatial Analysis: A Case Study of Tamor Basin, Nepal. Eurasian Journal of Agricultural Research, 10(1), 36-59. https://izlik.org/JA77JU65EW

AMA

1.Khadka A, Acharya R, Thapa S. Subbasin Prioritization Based on The Morphometric Parameters and Sediment Yield Using Geospatial Analysis: A Case Study of Tamor Basin, Nepal. EJAR. 2026;10(1):36-59. https://izlik.org/JA77JU65EW

Chicago

Khadka, Animesh, Ravi Acharya, and Suman Thapa. 2026. “Subbasin Prioritization Based on The Morphometric Parameters and Sediment Yield Using Geospatial Analysis: A Case Study of Tamor Basin, Nepal”. Eurasian Journal of Agricultural Research 10 (1): 36-59. https://izlik.org/JA77JU65EW.

EndNote

Khadka A, Acharya R, Thapa S (June 1, 2026) Subbasin Prioritization Based on The Morphometric Parameters and Sediment Yield Using Geospatial Analysis: A Case Study of Tamor Basin, Nepal. Eurasian Journal of Agricultural Research 10 1 36–59.

IEEE

[1]A. Khadka, R. Acharya, and S. Thapa, “Subbasin Prioritization Based on The Morphometric Parameters and Sediment Yield Using Geospatial Analysis: A Case Study of Tamor Basin, Nepal”, EJAR, vol. 10, no. 1, pp. 36–59, June 2026, [Online]. Available: https://izlik.org/JA77JU65EW

ISNAD

Khadka, Animesh - Acharya, Ravi - Thapa, Suman. “Subbasin Prioritization Based on The Morphometric Parameters and Sediment Yield Using Geospatial Analysis: A Case Study of Tamor Basin, Nepal”. Eurasian Journal of Agricultural Research 10/1 (June 1, 2026): 36-59. https://izlik.org/JA77JU65EW.

JAMA

1.Khadka A, Acharya R, Thapa S. Subbasin Prioritization Based on The Morphometric Parameters and Sediment Yield Using Geospatial Analysis: A Case Study of Tamor Basin, Nepal. EJAR. 2026;10:36–59.

MLA

Khadka, Animesh, et al. “Subbasin Prioritization Based on The Morphometric Parameters and Sediment Yield Using Geospatial Analysis: A Case Study of Tamor Basin, Nepal”. Eurasian Journal of Agricultural Research, vol. 10, no. 1, June 2026, pp. 36-59, https://izlik.org/JA77JU65EW.

Vancouver

1.Animesh Khadka, Ravi Acharya, Suman Thapa. Subbasin Prioritization Based on The Morphometric Parameters and Sediment Yield Using Geospatial Analysis: A Case Study of Tamor Basin, Nepal. EJAR [Internet]. 2026 Jun. 1;10(1):36-59. Available from: https://izlik.org/JA77JU65EW