Assessing Sediment Connectivity in the Petane Catchment, Sumatra Utara, Indonesia

DOI

10.2991/978-2-38476-499-0_19How to use a DOI?

Keywords

Structural Connectivity; Sediment Transfer; GIS; IC; Petane Catchment

Abstract

Sediment connectivity, which describes the degree to which sediment is transferred from source areas to downstream locations, is a fundamental factor influencing hydro-geomorphological processes and sediment dynamics within a catchment. Assessing sediment connectivity is essential for understanding soil erosion patterns, predicting sediment transport, and informing effective watershed management strategies. This study investigated sediment connectivity in the Petane catchment using the Index of Connectivity (IC). The Sedln-connect 2.3 was used to calculate sediment connectivity. This tool provides quantitative measures of potential sediment pathways and allows evaluation of the likelihood that sediment from various parts of the catchment will reach the outlet. A land cover map derived from Sentinel-2 imagery was used to calculate cover management factors, which quantify the influence of land cover on sediment transfer. Results reveal spatial variation in sediment connectivity across the catchment. Settlement areas and cropland exhibit the highest connectivity, indicating elevated potential for sediment transfer toward the outlet, whereas forested areas and water bodies demonstrate the lowest connectivity, acting as natural barriers to sediment movement. The results of the study emphasize the critical role of land cover in controlling sediment pathways and provide valuable insights for soil conservation, erosion mitigation, and integrated catchment management in the Petane catchment.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Anik Juli Dwi Astuti
AU  - Dwi Wahyuni Nurwihastuti
AU  - Riki Rahmad
AU  - Elsa Kardiana
AU  - Dinny Fauziah
PY  - 2025
DA  - 2025/12/12
TI  - Assessing Sediment Connectivity in the Petane Catchment, Sumatra Utara, Indonesia
BT  - Proceedings of the International Conference on Social Sciences and Interdisciplinary Studies (ICSSIS 2025)
PB  - Atlantis Press
SP  - 242
EP  - 251
SN  - 2352-5398
UR  - https://doi.org/10.2991/978-2-38476-499-0_19
DO  - 10.2991/978-2-38476-499-0_19
ID  - Astuti2025
ER  -