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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Buletin Peternakan Journal of Degraded and Mining Lands Management Jurnal Wasian Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Forest and Society Jurnal Hutan Pulau-Pulau Kecil : Jurnal Ilmu-Ilmu Kehutanan dan Pertanian MAKILA: Jurnal Penelitian Kehutanan Jurnal Wasian Jurnal Ilmu Kehutanan Jurnal Ilmu Kehutanan Jurnal Penelitian Kehutanan Wallacea MARSEGU : Jurnal Sains dan Teknologi Indonesian Journal of Forestry Research Jurnal Wasian
Dwiko Budi Permadi
Departement Of Forest Management, Faculty Of Forestry, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Environmental Science Physics Social Sciences Veterinary Other

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Soil erodibility in Sangarus Catchment area: Linking soil properties to land degradation and sustainable management strategies Siregar, Diyanti Isnani; Kusumandari, Ambar; Permadi, Dwiko Budi; Santosa, Sigit Heru Murti Budi
Journal of Degraded and Mining Lands Management Vol. 13 No. 3 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.133.10349

Abstract

Land degradation resulting from agricultural expansion is a significant issue in the Sangarus Catchment area of Lampung, Indonesia, particularly in the upstream region. The conversion of forests into intensive agricultural land has led to declines in soil physical properties and increases in erosion rates. This study aimed to analyze the magnitude of soil erodibility (K-factor) and to evaluate its relationship with soil physical properties, to inform targeted management strategies. The research employed a Land Mapping Unit (LMU) approach, collecting 47 soil samples across the catchment based on soil type, slope, and land cover overlays. The soil samples underwent laboratory analysis for texture, structure, organic matter, and permeability. The K-factor was calculated following the Wischmeier and Smith equation. The results indicated that soil erodibility values (K) in the Sangarus Catchment area ranged from 0.01 to 0.33, with the highest erodibility observed in the upstream area, particularly within mixed dryland agriculture land use. In contrast, secondary forests exhibited the lowest soil erodibility. Statistical analysis revealed that soil permeability was the most significant factor influencing erodibility, followed by other soil properties. These findings suggest that mitigation strategies for the upstream mixed dryland agriculture zones should prioritize Nature-Based Solutions (NBS). Combining agroforestry systems with the intensive application of organic amendments is recommended as a primary strategy. These approaches are essential for improving soil permeability and maintaining organo-mineral complexes, thereby restoring hydrological functions and ensuring the sustainability of the catchment against the risks of degradation.
Co-Authors Agus Ngadianto Ahmad Maryudi Ahmad Maryudi Ambar Kusumandari Ananto Triyogo Andita Aulia Pratama Ari Susanti Asih, Siti Puji Avila Delvion, Bertila Azmi Amin Bekti Larasati Brandon Aristo Verick Purba Budiadi Budiadi Denni Susanto Diyanti Isnani Siregar, Diyanti Isnani Dwiananta, Yoga Epri Evelin Parera Evelin Parera Fujiwara, Takahiro Hajar Lutviah Handojo Hadi Nurjanto Handojo Hadi Nurjanto Heri Santoso Hermudananto Hermudananto Hermudananto Hermudananto Hero Marhaento, Hero Irfan Bakhtiar Ismariana, Ema Kartodihardjo, Hariadi Kusuma, Aprisep Ferdhana Makmun Sanjaya Muhammad Ali Imron Muhammad Iqbal Nur Madjid Nafiatul Umami Nanda Silatsa, Serge Pradiana, Yolla Ratih Madya Septiana Ratih Madya Septiana Rini Pujiarti Rini Pujiarti Ris Hadi Purwanto Rissaldy, Jovian Dito Rohman Rohman Rohman Santosa, Sigit Heru Murti Budi Santoso, Widodo Budi Sanudin Sigit Sunarta, Sigit Siti Maimunah Slamet Riyanto Suhartono Sumardi Sumardi . Sumardi Sumardi Sumardi Sumardi Teguh Yuwono Teguh Yuwono Ulhaq, Muhammad Fathi Dhiya Wahyu Wardhana Widiyatno