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All Journal Naturalis : Jurnal Penelitian Pengelolaan Sumberdaya Alam dan Lingkungan Journal of Degraded and Mining Lands Management JOURNAL ONLINE OF PHYSICS MAJALAH ILMIAH GLOBE Civil and Environmental Science Journal (CIVENSE) Jambura Geoscience Review Journal of Environmental Science and Sustainable Development Journal of Geography Science and Education Journal of Applied Geology
Setiawan, Muhammad Anggri
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Energy Engineering Environmental Science Physics Social Sciences

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DINAMIKA SPASIAL DAN TEMPORAL KERENTANAN SOSIAL TERHADAP DAMPAK BENCANA GEMPA BUMI STUDI KASUS: DUSUN JOGO Nurmaya, Acintya; Setiawan, Muhammad Anggri; Purwanto, Taufik Hery
MAJALAH ILMIAH GLOBE Vol 21, No 2 (2019)
Publisher : Badan Informasi Geospasial

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (770.727 KB) | DOI: 10.24895/MIG.2019.21-2.915

Abstract

Peningkatan kepadatan penduduk dan permukiman berbanding lurus terhadap kerentanan sosial. Penelitian ini mengintegrasikan teknologi geoinformasi dalam penilaian kerentanan sosial secara spasial dan temporal dengan skala detail. Tujuan dari penelitian ini untuk menganalisis tingkat kerentanan sosial secara spasial setiap unit rumah pada pagi, siang, sore, dan malam hari. Metode pengolahan data dengan teknik sensus untuk mendapatkan informasi anggota penghuni rumah. Interpretasi citra Quickbird dilakukan untuk menganalisis kenampakan tapak bangunan. Bobot dari tiap parameter kerentanan sosial menggunakan metode Analitycal Hierarchy Process (AHP). Dinamika spasial dan temporal kerentanan sosial terhadap gempa bumi di Dusun Joho didukung dengan hasil analisis data berupa nilai kerentanan tertinggi terdapat pada parameter penduduk lansia sebesar 41% dan parameter kerentanan sosial terendah adalah kepadatan penduduk sebesar 7%. Di antara 354 total bangunan, 126 rumah terklasifikasikan dalam tingkat kerentanan sosial rendah (36%) pada pagi dan siang hari. Kerentanan sosial sedang (39%) pada sore dan malam hari sebanyak 138 bangunan dan kerentanan sosial tinggi (51%) pada sore dan malam hari sebanyak 179 rumah.
The Dynamics of Flow Discharge and Suspension Flow Discharge in Volcano Watershed with Agroforestry Land Cover Hadini, La Ode; Sartohadi, Junun; Setiawan, Muhammad Anggri; Mardiatno, Djati
Civil and Environmental Science Journal (CIVENSE) Vol 4, No 2 (2021): IN PRESS
Publisher : Fakultas Teknik UB

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Abstract

The suspension flow from the upper part of a volcano watershed, which has a very thick soil condition, is sensitive to landuse form. Agroforestry is the dominant landuse form in the volcanic landscape of Indonesia. There is a lack of detailed studies about suspension flow in the upper watershed where agroforestry is the land cover. This research, performed in agroforestry area, covered the correspondence between flow discharge and suspension flow discharge, the time lag of initial rain events and the formation of suspension flow; and the characteristics of the grain size of the suspensions during the flow. The suspension flow was measured at the outlet of a gully in key watershed areas, which yielded a total of 436 suspension data. The measurement analysis was conducted at every rain event in the field and in the laboratory. The crop characteristics in the rain catchment area were recorded in details during the field survey. The characteristics of the channels converging toward the gully system were observed during the field survey. There were three relationship patterns between the peak flow discharge and the peak suspension discharge, namely (1) the peak flow discharge corresponded to the peak suspension discharge, (2) the peak flow discharge preceded the peak suspension discharge, (3) the peak flow discharge occurred after the peak suspension discharge. The average time interval between the rain events and the occurrence of suspension flow was 17.7 minutes. The peak suspension content varied from 0.0016 g/L up to 4.71 g/L with an average of 1.03 g/L. The grain size of the suspension was dominated by 71-76% of clay fraction with an average of 73% at the rising phase and 68-71% of clay fraction with an average of 69% at the falling stage.
RIVER MEANDERS ON ALLUVIAL PLAINS AND HILLY TOPOGRAPHY Raharjo, Puguh Dwi; Haryono, Eko; Setiawan, Muhammad Anggri; Permana, Haryadi
Journal of Environmental Science and Sustainable Development Vol. 6, No. 1
Publisher : UI Scholars Hub

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Abstract

Previous research on meandering rivers in Indonesia, precisely in Java, has predominantly focused on alluvial plains, while their presence is also observed in hilly regions with rocky substrates. The study aims to investigate different meandering types in Java and establish regional connections between these types and geological and geomorphological processes. The methodology involves identifying high-resolution remote sensing images and topographic data, followed by analysis based on geological and geomorphological developments. To categorize the rivers, sinuosity ratios are meticulously calculated. The tectonic setting, which influences physiography and geomorphology, is an analytical unit for determining the meandering process. The result reveals that meandering rivers are primarily located in the alluvial plains of northern Java. Meanwhile, meandering rivers in hilly areas are concentrated in structural formations, predominantly in southern and central Java. In alluvial plains, meandering rivers display a regular pattern with higher concentrations of curvature downstream, and their substrates consist of deposits or soil. Conversely, meandering rivers in hilly regions exhibit irregular and winding patterns, randomly distributed from upstream to downstream. These rivers are situated in the physiographic regions of Southern Mountains, Hills in Central Depression, and Kendeng Hills, and their substrates mainly comprise rocks, leading to a more protracted process of curvature transformation. In conclusion, meandering rivers in Java can form not only in alluvial plains but also in hilly areas. Meanders on hilly topography possess higher sinuosity ratios than those on alluvial plains, displaying irregular patterns. Energy minimization alone is not the sole controlling factor; the physical surface conditions also play a significant role, particularly in meanders in hilly areas, resulting in a diverse typology of meanders. Therefore, understanding the formation of meandering rivers in various topographic regions can serve as a basis for policymaking, particularly in flood mitigation and riverbank erosion management.
Impacts of Land Use on Runoff and Sediment Dynamics in Tropical Watersheds: A Case Study in Bogowonto Upper Watershed Christanto, Nugroho; Setiawan, Muhammad Anggri; Kholis, Afid Nur; Sharma, Rahit; Shrestha, Dhruba Pika
Jambura Geoscience Review Vol 6, No 2 (2024): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jgeosrev.v6i2.26055

Abstract

Land use changes in tropical regions have increased, leading to rising environmental stress in Java, Indonesia. Food shortages have driven land conversion and expansion, which increases peak flows during the rainy season and reduces water storage in the dry season, heightening flood risks. Research on integrated catchment hydrology is crucial. This study examines the relationship between land use, runoff, and sediment in the Bogowonto Upper Watershed using SWAT hydrological modeling. The SWAT model helps understand hydrological processes at the watershed scale and the impact of land use changes on runoff and sediment dynamics. The sensitivity of SWAT model parameters varies in the Bogowonto Upper Watershed. Runoff sensitivity analysis indicates a +62% increase with a 50% change in CN value, showing high sensitivity. A 50% change in vegetation cover results in a +50% model output, indicating moderate sensitivity. Slope, Ksat (saturated hydraulic conductivity), and bulk density are fairly sensitive, while AWC is slightly sensitive. For sediment, a 50% increase in CN value results in a +47% change, and a 50% increase in vegetation cover leads to a +58% model output, showing moderate sensitivity. The model, run from 2014-2019, shows excellent accuracy with NSE of 0.82, RRMSE of 0.43, R² of 0.83, and PBIAS of 9.8%.
Spatial analysis of sedimentation hazard in the catchment area of the Indonesia nuclear power plant Alhakim, Euis Etty; Setiawan, Muhammad Anggri; Mellawati, June; Iswanto, Eko Rudi; Setiaji, Abimanyu Bondan Wicaksono
Journal of Degraded and Mining Lands Management Vol. 12 No. 2 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.122.6953

Abstract

Erosion and sedimentation resulting from land use changes can negatively impact watershed quality and threaten sustainability. Watershed quality is particularly crucial in areas designated for energy sector development, such as Nuclear Power Plants (NPPs). One potential NPP site in Indonesia is located downstream of the Raya watershed, where high river sedimentation may affect its performance. This study aimed to determine the spatial pattern of mean annual sediment yield in the Raya watershed using hydrological models. Due to the limited availability of data, secondary data analysis was employed, utilizing a geospatial hydrological modeling approach with the Soil and Water Assessment Tool (SWAT). The Hydrological Response Unit (HRU) was used as an analytical unit to identify physio-geographic similarities based on land use, soil type, and slope, which serve as dynamic hydrological controls. The results reveal the hydrological characteristics of the Raya watershed: an elongated shape, a dendritic river network, and moderate drainage density. The average slope is 12.6%, with a clay-loam soil texture and land cover dominated by dryland forests, oil palm plantations, and mining activities. The SWAT model produced an average sediment yield of 251.7 t/ha/year over a 10-year simulation period, classified as high sedimentation. High to very high sedimentation was predominantly found in the upstream areas, moderate sedimentation at the foothills, and low sedimentation in the alluvial plains downstream. These findings indicate a decline in land quality in the Raya watershed, highlighting the need for conservation measures to ensure the sustainability of the watershed ecosystem.
Landscape design for gully erosion control on the upper slopes of Mount Sumbing, Central Java, Indonesia Maulana, Edwin; Sartohadi, Junun; Setiawan, Muhammad Anggri
Journal of Degraded and Mining Lands Management Vol. 12 No. 2 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.122.7037

Abstract

Gully erosion can cause significant soil loss; thus, it must be controlled. This study aimed to develop a landscape design for controlling gully erosion in a volcanic environment with a thin soil layer. The primary data used was Unmanned Aerial Vehicle (UAV) data combined with field surveys and in-depth interviews. A collaborative approach was used to develop the landscape design to minimize the impact of gully erosion. The finding showed that gully erosion had entered adult to old age since the scars (incisions) at the gully bottom existed. According to the community, gullies must be controlled, although they do not affect land productivity. Vegetative control is the most favored method of gully erosion control. Local vegetation with the potential for additional value is chosen to control gully erosion. Strengthening community capacity is the most favorable way to manage gullies. Through good understanding, local communities can control the development of gullies. Further strengthening of regulations related to gully erosion control will have a domino effect on land sustainability. This finding can be extrapolated globally to locations with similar land characteristics.
Erosion Mapping Based on Erosion Evidence Features in the Micro Watershed of Parangtritis Lathifah, Rofiatun Nur; Setiawan, Muhammad Anggri
Naturalis: Jurnal Penelitian Pengelolaan Sumberdaya Alam dan Lingkungan Vol. 13 No. 2 (2024)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/naturalis.13.2.35744

Abstract

This study involves detailed observations of erosion indicators within the watershed to produce a comprehensive mapping of erosion patterns. The detailed mapping of erosion patterns and spatial distribution, along with the factors influencing erosion, is essential. Mapping erosion spatially often yields data that may differ from the actual erosion conditions observed in the field, there is a need for a more accurate yet efficient mapping of erosion hazard levels by combining spatial analysis methods and field surveys. The primary focus of the research is to develop an efficient erosion mapping survey procedure at the Micro Watershed Scale, considering diverse erosion typologies and land-use dynamics. The Micro Watershed of Parangtritis, chosen for its unique erosion characteristics, was used as the main research area. This mapping method involves a combination of field surveys and geospatial analysis to capture various erosion features. Important data to collect are various erosion and landform features based on their geomorphology and anthropogenic features. The mapping results demonstrate complex erosion patterns. Topography, vegetation cover, anthropogenic, and soil types play key roles in erosion distribution. Steep slopes and insufficient ground cover vegetation significantly contribute to the soil erosion. In the upstream area of the watershed, characterized by steep topography and a predominantly natural anthropogenic, there is a tendency for severe erosion, including 8.87 ha (6.38%) classified as Very Severe, 16.81 ha (12.08%) as Severe, 23.46 ha (16.87%) as Catastrophic, and 11.81 ha (6%) as High. Meanwhile, in the downstream area with relatively flat topography and an urbanogenic and agrogenic, erosion tends to be light, with 23.34 ha (16.78%) classified as Light, 7.08 ha (5.09%) as Moderate, and 28.63 ha (30.98%) as Very Light. These findings reveal diverse evidence of erosion, including splash erosion, sheet erosion, rill erosion, gully erosion, and landslides, and influenced by variations of topography, vegetation cover, anthropogenic, and soil types that significantly contribute to the erosion patterns within the watershed. Special attention is given to micro-sized erosion features that may not be visible through broader mapping methods. This detailed mapping approach provides valuable insights into the spatial distribution of erosion, facilitating more targeted conservation efforts. These findings contribute to a deep understanding of erosion patterns in the karst environment and provide fundamental information for soil and water conservation planning. In the context of environmental sustainability, detailed-scale erosion mapping in the Micro Watershed Area needs to further explore the anthropogenic influences on erosion occurrence.
Identification and Classification of Anthropogenic Landform in Parangtritis Hills Landscape Dwi Putra, Boma Karunia; Setiawan, Muhammad Anggri; Mutaqin, Bachtiar Wahyu
Journal of Geography Science and Education Vol. 6 No. 2 (2024): October
Publisher : Universitas Veteran Bangun Nusantara

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Abstract

Human activities alter the Earth's morphology into anthropogenic landforms, both in urban and rural areas, including Desa Parangtritis. These interventions create new characteristics in the landscape, such as pseudourban formations on plains and morphological changes in hills, posing environmental risks if not managed properly. This study uses a comparative descriptive spatial analysis method, comparing variations between anthropogenic and natural landforms. Digital Elevation Model (DEM) data and orthophoto were utilized to delineate and identify anthropogenic landforms. The results indicate that the hillsides in Desa Parangtritis are divided into structural and solutional landforms, each with varying levels of human intervention. The solutional landform falls under a "Slightly Modified Landscape" phase, while the structural landform has undergone significant anthropogenic intervention. Agrogenic land use dominates, with mixed gardens and fields as primary uses, while urbanogenic and traffic interventions are closely related to infrastructure development. The transformation of hills into anthropogenic landforms in Parangtritis reveals a strong human influence, not only forming pseudoterraces for agriculture but also altering land configuration through excavation and leveling, thus placing it in a "semi-natural landscape" phase. These interventions increase the risks of erosion and landslides and reduce infiltration capacity. The study demonstrates that landform changes due to anthropogenic intervention in the hills of Desa Parangtritis require careful conservation planning to protect the environment and minimize the negative impacts of human activities in the area.
PEMODELAN SPASIAL KERAWANAN LONGSOR MENGGUNAKAN METODE AHP DI PULAU JAWA Safinatunnajah, Safinatunnajah; Samodra, Guruh; Setiawan, Muhammad Anggri
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 3 (2025): JOP (Journal Online of Physics) Vol 10 No 3
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i3.43891

Abstract

Longsor di Pulau Jawa memiliki jumlah yang banyak dengan tingkat kerawanan yang berbeda. Kestabilan lereng dapat dipengaruhi oleh karakteristik topografi, hidrologi, antropogenik dan geologi yang berbeda. Sehingga perlu adanya kajian yang berfungsi untuk mengetahui jumlah longsor dan wilayah rawan longsor dengan menggunakan metode AHP. Penelitian ini bertujuan mengidentifikasi wilayah rawan longsor di Pulau Jawa. Penelitian kerawanan longsor dilakukan dengan cara menerapkan pendekatan heuristik dengan menggunakan metode Analytical Hierarchy Process (AHP) dan indeks kerawanan longsor dihitung dengan menggunakan metode weighted overlay. Hasil analisis kerawanan longsor menunjukkan bahwa Zona Vulkanik Tengah yang merupakan kawasan paling rawan, terutama di lereng gunung api aktif seperti Kabupaten Bogor bagian selatan, Bandung Barat, Garut, Wonosobo, Magelang, Boyolali, dan Malang bagian selatan. Zona Pegunungan Selatan juga tergolong rawan, dengan wilayah seperti Trenggalek, Pacitan, Gunungkidul bagian barat, dan Wonogiri. Zona Depresi Tengah menunjukkan tingkat kerawanan sedang hingga tinggi seperti Grobogan, Blora, Nganjuk, Lamongan bagian selatan, dan Bojonegoro. Sebaliknya, Zona Pegunungan Lipatan Utara seperti Indramayu, Subang, dan Gresik memiliki tingkat kerawanan yang relatif rendah.
Improving Landslide Susceptibility Using Groundwater Parameter in Samigaluh and Kalibawang Subdistricts Susatio, Raja; Sartohadi, Junun; Samodra, Guruh; Setiawan, Muhammad Anggri; Wilopo, Wahyu
Journal of Applied Geology Vol 10, No 1 (2025)
Publisher : Geological Engineering Department Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jag.106054

Abstract

Landslide susceptibility map is crucial in disaster risk management and it can be used for regional development plans. Landslide susceptibility map can be made by analyzing parameters that are assumed to affect landslides such as gradient slopes, geology, soil, and climate. Selection of landslide controlling parameters influences the accuracy of landslide susceptibility map. This study evaluates the effect of parameter that’s rarely used which is groundwater. The study area of this research was Kalibawang and Samigaluh Subdistricts, Kulonprogo, Special Region of Yogyakarta, Indonesia. Frequency ratio was used for the method along other parameters which is slope gradient, lithology, lineament density, land use, soil thickness. The result shows that groundwater parameter increase the accuracy by 22,29%. This study suggest that groundwater should be highly considered in landslide susceptibility mapping. In the other hand, groundwater depth mapping remains a challenge because most remote sensing method only detect shallow groundwater. Further research is necessary to develop better method for groundwater mapping using remote sensing or other indirect method.
Co-Authors Acintya Nurmaya Alhakim, Euis Etty Christanto, Nugroho Djati Mardiatno Dwi Putra, Boma Karunia Eko Haryono Eko Rudi Iswanto Hairil Adzulyatno Hadini Haryadi Permana June Mellawati Junun Sartohadi Kholis, Afid Nur Lathifah, Rofiatun Nur Maulana, Edwin Mutaqin, Bachtiar Wahyu Puguh Dwi Raharjo Safinatunnajah, Safinatunnajah Samodra, Guruh Setiaji, Abimanyu Bondan Wicaksono Sharma, Rahit Shrestha, Dhruba Pika Susatio, Raja Taufik Hery Purwanto Wahyu Wilopo