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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) G-Tech : Jurnal Teknologi Terapan
Dimas Prabowo Harliando
Universitas Pembangunan Nasional “Veteran” Jawa Timur, Indonesia
Agriculture, Biological Sciences & Forestry Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering

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Spatial Modeling of Vegetation Cover for Soil Erosion Control Based on Arc GIS and the RUSLE Models Dimas Prabowo Harliando; Chandra Setyawan; Hanggar Ganara Mawandha
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.14-27

Abstract

Deforestation in the Serayu watershed, Central Java province, Indonesia for agriculture and other uses leaves only 0.73% of vegetation. It has triggered a number of problems such as soil loss (erosion), landslides, floods and sedimentation downstream. Environmental damage control needs to be applied through appropriate conservation programs. This study aims to understand the distribution of soil erosion and the effectiveness of soil erosion control by using vegetation cover. Soil erosion modeling and its correlation to vegetation cover was performed by using an Arc GIS based model of the Revised Universal Soil Loss Equation (RUSLE) through five scenarios of vegetation landscape cover such as 10%, 15%, 20%, 25%, and 30% of the total area of the study site. Five parameters namely rain erosivity (R), soil erodibility (K), slope-length (LS) and crop management (C) and conservation practices (P) factor were used to calculate soil erosion. The results indicated 82.25 tons/ha/year soil erosion reduction due to enhancement of vegetation cover from the actual condition 0.73% to the 30% vegetation cover condition. The increase of 5% vegetation landscape cover (forest) detracted the soil erosion rate by 10,20 tons /ha/year. Very high and high soil erosion hazard levels were found in the northern, east, and west watershed areasKeywords:   Soil erosion, RUSLE model, GIS, Serayu watershed, Vegetation cover
Analisis Erosi Aktual Menggunakan Software ArcGIS pada Sub DAS Durensewu, Waduk Gadjah Mungkur Wonogiri Haidar Fari Aditya; Muhammad Fikri Yuhdistira; Dinna Hadi Sholikah; Dimas Prabowo Harliando; Fitri Wijayanti
G-Tech: Jurnal Teknologi Terapan Vol 8 No 4 (2024): G-Tech, Vol. 8 No. 4 Oktober 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v8i4.5358

Abstract

Soil erosion is an environmental problem in the tropics that can cause the loss of topsoil. If it continues, it will result in a decrease in soil fertility and land productivity. So, it is necessary to quickly predict the erosion hazard level using the USLE method based on GIS. This research aims to analyze the distribution of erosion hazard levels in the Durensewu Sub-watershed, Gadjah Mungkur Reservoir Wonogiri, based on GIS. The research was conducted in the Durensewu Sub-watershed, Wonogiri, in January-April 2024. Data processed include rainfall (R), erodibility (K), slope (LS), and land cover and management (CP). The R-value in the Durensewu Subwatershed is 169.24-204.216. Soil groups of Ustropepts and Dystrudepts showed K values of 0.39 and 0.46, respectively. The topography of the Durensewu Subwatershed is gently sloping to very steep. Mixed gardens, settlements, and rice fields dominate land use. The erosion hazard level in the Durensewu Subwatershed is evenly distributed in the mild, moderate, and severe hazard classes.
Co-Authors Chandra Setyawan, Chandra Fitri Wijayanti Haidar Fari Aditya Hanggar Ganara Mawandha Muhammad Fikri Yuhdistira