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All Journal LaGeografiA Civil and Environmental Science Journal (CIVENSE) Penelitian Pendidikan Geografi Indonesian Physical Review JAGAT (Jurnal Geografi Aplikasi dan Teknologi) Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Pengabdian kepada Masyarakat Jurnal Peternakan Lokal Jurnal Ilmiah AgriSains Sustainability (STPP) Theory, Practice and Policy Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS Sewagati Chalaza Journal of Animal Husbandry Joong-Ki E-Amal: Jurnal Pengabdian Kepada Masyarakat Geosfera Indonesia Jurnal Penelitian Pendidikan Geografi
La Ode Hadini
Universitas Halu Oleo
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Physics Public Health Social Sciences Veterinary Other

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Journal : Geosfera Indonesia

 1 
Sediment Flow Characteristics in The Upper Slope of Volcanic Landscapes With Dryland Agriculture La Ode Hadini; Junun Sartohadi; M. Anggri Setiawan; Djati Mardiatno; Nugroho Christanto
Geosfera Indonesia Vol. 6 No. 3 (2021): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v6i3.24480

Abstract

Increasing population densities and food demands are major factors contributing to the widespread use of agricultural drylands in upper volcanic slope areas. This phenomenon poses a high risk of severe erosional events that are environmentally hazardous. Therefore, this study aims to analyze the sediment flow characteristics, based on the relationship between sediment flow and water level as well as the sediment discharge rate and soil loss. Field surveys were conducted to determine the soil measurement, slope morphology and dryland cover characteristics. The sediment flow was evaluated at the gully outlet, where 169 suspension data pairs for the modeling and 130 suspension data pairs for the validation, as well as the bed load, water level, rainfall and water flow characteristics were obtained. Tables and figures were subsequently used to represent the measurement data and analysis results for the correlation between the flow rate effects, sediment and soil loss on the water surface. The results showed that the sediment flow in volcanic landscape slopes with dryland agriculture were possibly characterized by the polynomial relationship, using the suspension discharge model, Qs=0.0322Q2+6.0625Q–1.2658. Under this condition, the average rate of soil loss in the form of sediment load and erosion rate of the catchment area occurred at 953.53 and ​​1,657.94 ton/ha/yr, respectively. Furthermore, the sediment sources in the soil loss were believed to originate from 83% of the suspended sediments and 17% bed loads. Keywords: Discharge; Dryland; Landscape; Sediment; Volcano Copyright (c) 2021 Geosfera Indonesia and Department of Geography Education, University of Jember This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License
Analysis of the Dynamics of Water Flow and Suspension Flow Discharge in Volcano Watershed with Settlement Land Use La Ode Hadini; Junun Sartohadi; Muhammad Anggri Setiawan; Djati Mardiatno; Nugroho Crhristanto
Geosfera Indonesia Vol. 8 No. 1 (2023): GEOSFERA INDONESIA
Publisher : Department of Geography Education, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/geosi.v8i1.30921

Abstract

Suspension flow into the upstream of volcano watershed is sensitive to land use. In Indonesia, a settlement is a form of land use in several volcanic landscapes. There is currently no detailed study on the suspension flow sediment from the settlement land use. The purpose of this study is to investigate the characteristics of the relationship between water and suspension flow discharge. The study was conducted through the measurements at a gully outlet that produced 747 suspension load data. For each rainfall event, suspension load measurements were made in the field, followed by laboratory analysis. Additionally, field surveys were used to determine the characteristics of settlement land use and the water flow into the gully system. According to the findings, the peak flow discharge corresponds to the peak suspension discharge, the peak flow discharge comes before the peak suspension discharge, and the peak flow discharge happens after the peak suspension discharge. The average time lag between initial rainfall events and suspension flow was 10.36 minutes, and the suspension peak content varied by an average of 2.22 gl-1. The grain size was also dominated by the clay fraction, averaging 67.86% on the ascending branch and 67.82% on the descending branch.
Co-Authors Abdul Rizal Adin Fitra Irawan Ahmad Dzakir Ahmad Fitra Ahmad Hidayat Ahmad Hidayat Ahmad Hidayat Ahmad Hidayat Amniar Ati Andrias Andrias Armayanti Aris AS Aku, AS Astriana Napirah Ati, Amniar Bahtiar, . Christanto, Nugroho Deki Zulkarnain Djati Mardiatno Djati Mardiatno Eko Kiswanto Ema Hermawati Garusu Fadlan Arapah Bin Arifin Farid Restu Firmansyah Fitra Asgianti Lasahari Fitra Saleh Fitrani Fitriani Fitriani Fitriani Fitriyani Saudi Fitriyani, Saudi Fuji Astuti Auza Fuji Astuty Auza G. Gerhana Garusu, Ema Hermawati Golok Jaya, La Ode Muhammad Gusti Ngurah Sudarmayasa Harisma Buburanda, Harisma Haslini, Haslini Hasria Hasria, Hasria Hikma Wati Ibrahim, Aris Ida Usman Irfan Ido Irsan, Laode Muhamad Jamal Harimudin Jufri Karim Junun Sartohadi Kasmar Kasmar Katrin Almeisa Khaerul Alaudin L.M Iradat Salihin La Aba La Harudu La Ode Agus Salim Mando La Ode Amaluddin La Ode Amaluddin, La Ode La Ode Arsad Sani La Ode Muhamad Munadi La Ode Nafiu La Ode Restele La Ode Restele La Ode, Nursalam La, Harudu Lasahari, Fitra Asgianti Leni Marlina Lisa Ismayanti M. Anggri Setiawan Mamat Ruhimat, Mamat Moh. Dede Muhammad Amrullah Pagala Muhammad Anggri Setiawan Munadi Munadi Musdalifa Musdalifa Musram Abadi Natsir Sandiah Nugroho Crhristanto NUR HASANAH Nur Hasanah Nurgiantoro Nurgiantoro Nurgiantoro, Nurgiantoro Nurhasanah Nurhasanah Nurhasanah Nurul Hasanah Patuna, Helpan Ergianto Purba, Joshua Rahma Musyawarah, Rahma Restele, La Ode Restu Libriani Rumiani Rumiani Rusli Badaruddin Sainur Sainur Saudi, Fitriyani Septian Jackrianto Setiawan, Muhammad Anggri Sitti Kasmiati Sitti Kasmiati Sitti Kasmiati Sitti Kasmiati Sitti Kasmiati Solehati, Firda Surahmanto Surdin Surdin, Surdin Tahir, Tahir TAKDIR SAILI W. Kurniawan Yuni Lestari