Sensitivity to Erosion Based on Morphometry and the Erosion Rate in Blongkeng Watershed
- DOI
- 10.2991/absr.k.220305.005How to use a DOI?
- Keywords
- Erosion; Sensitivity; USLE; Watershed; Morphometry
- Abstract
The Blongkeng sub-watershed is one of the sub-watersheds in the Progo watershed and is located on the north-west slope of Mount Merapi. This sub-watershed is considered a priority because it plays an important role in the entire Progo watershed system. The existence of vegetation damage and land degradation due to the eruption of Mount Merapi has an impact on surface runoff and erosion of the western slopes of Mount Merapi. The impacts of erosion include drought and silting in rivers. Estimation of the erosion level using the USLE model, but this method has the disadvantage of requiring a lot of data and is not easy to obtain. A simple erosion assessment method in the form of erosion sensitivity using watershed morphometric parameters were applied. The morphometric parameters were analyzed quantitatively are then ranked to get the erosion sensitivity rating in the watershed. The purpose of this study was to determine the comparison of erosion assessment methods using morphometric parameters and using USLE. The results obtained from this study are the ranking of erosion estimation using morphometry and erosion estimation using USLE. The similarity of rankings is at ranks 1, 2, 3, and 10. Similarities and differences in rankings is a result of the morphometric parameters that are not suitable if they are involved in calculating the morphometric ranking in the research area of the Blongkeng Sub-watershed, namely the drainage density (Dd) parameter, stream frequency (Fs), texture ratio (T), mean length overflow (Lof), form factor (Rf), circulary ratio (Rc) and elongation ratio (Re).
- Copyright
- © 2022 The Authors. Published by Atlantis Press International B.V.
- Open Access
- This is an open access article under the CC BY-NC license.
Cite this article
TY - CONF AU - Faizal Nur Fahmi AU - Ambar Kusumandari PY - 2022 DA - 2022/03/10 TI - Sensitivity to Erosion Based on Morphometry and the Erosion Rate in Blongkeng Watershed BT - Proceedings of the 2nd International Conference on Smart and Innovative Agriculture (ICoSIA 2021) PB - Atlantis Press SP - 25 EP - 31 SN - 2468-5747 UR - https://doi.org/10.2991/absr.k.220305.005 DO - 10.2991/absr.k.220305.005 ID - Fahmi2022 ER -