Vol. 39 No. 3 (2025): December 2025

Published: 2025-09-18

Open AccessResearch Article
Pages 292-306
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Mapping the Information of Social Vulnerability of Covid-19 Pandemic in Bandung City, Indonesia
by Nandi Nandi, Klaus Greve, Arif Ismail, Wawan Setiawardani, Yuli Diani Rahmawati, Khimmataliev Dustnazar Omonovich, Nurmamatov Sheroz Eraliyevich
Forum Geografi2025292-306DOI: 10.23917/forgeo.v39i3.10775
Abstract The COVID-19 pandemic has widened socioeconomic disparities in urban Indonesia, where studies on the interaction between demographic factors and population density are often overlooked. This leaves a gap in the holistic understanding of spatial vulnerability. This gap is pressing for Bandung, one of Indonesia's key economic hubs, where the lack of integrated, evidence-based data hampers mitigation efforts against the…Read More
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Open AccessResearch Article
Pages 307-317
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Seasonal Variability in Soil Salinity and its Climatic Drivers in Khulna, Bangladesh
by Karno Kumar Mondal, Md. Abdullah Elias Akhter, Muhammad Abul Kalam Mallik
Forum Geografi2025307-317DOI: 10.23917/forgeo.v39i3.9038
Abstract Bangladesh is one of the countries in the world most severely affected by soil salinity issues. This research focuses on the seasonal variation in soil salinity and the associated impact of climate change across different sites in the Batiaghata sub-district of Khulna, located in the southwestern coastal belt of Bangladesh. The study encompasses four meteorological seasons: pre-monsoon (March-April-May), monsoon…Read More
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Open AccessResearch Article
Pages 318-346
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A Phenomenon of Disparity Between Regional Spatial Planning and Actual Land Use in the Citarum River Corridor, Indonesia
by Iwan Setiawan, Dede Rohmat, Suhendro
Forum Geografi2025318-346DOI: 10.23917/forgeo.v39i3.10379
Abstract The Citarum River in Indonesia is a sensitive and strategic area and is known as the dirtiest river in the world. The root of the problem lies in the existence of gaps along the corridor that are not subject to regional spatial plan (RSP). This study aims to (1) present empirical data illustrating these spatial discrepancies, and (2) analyse the underlying factors contributing to them. A spatial analytical approach was…Read More
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Open AccessResearch Article
Pages 347-368
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Flash Flood Susceptibility Mapping in Phuket Province, Thailand: An Integrated Geo-Information Technology and Logistic Regression Approach
by Katawut Waiyasusri, Parichat Wetchayont
Forum Geografi2025347-368DOI: 10.23917/forgeo.v39i3.11904
Abstract In the past 2 years, Phuket has experienced more frequent flash floods, resulting in significant damage to life and property for the people of Phuket. This research aimed to assess flash flood susceptibility using Geo-information technology (GIS) and logistic regression analysis in Phuket Province. The statistical results from the logistic regression analysis were subsequently processed using the geographically weighted…Read More
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Open AccessResearch Article
Pages 369-382
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Constraints on Adopting Land Conservation Technologies Among Cassava Farmers in Volcanic Hillslope Prone to Landslide, Indonesia
by Elok Surya Pratiwi, Jihan Dwi Islami, Rina Purwaningsih, Junun Sartohadi, Masahiko Ota, Intan Permata Hadi, Alvince Patanduk, Hertiyana Nur Annisa, Hunggul Yudono Setio Hadinugroho, Ogi Setiawan, Bayu Dwi Apri Nugroho
Forum Geografi2025369-382DOI: 10.23917/forgeo.v39i3.9773
Abstract The adoption of land conservation technologies (LCTs) in smallholder farming systems often remains limited due to diverse, context specific constraints, highlighting the need for localized analyses. This study examines the barriers to LCTs adoption among cassava farmers residing on landslide-prone volcanic slopes in Magelang Regency, Indonesia. A qualitative approach was employed, involving semi-structured interviews with…Read More
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Open AccessResearch Article
Pages 383-397
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Flood Risk Analysis Using Spatial Synthetic Population in the Upper Bengawan Solo Watershed, Indonesia
by Muhammad Musiyam, Jumadi Jumadi, Vidya Nahdhiyatul Fikriyah, Heni Masruroh, Ema Dwi Septiyani, Choirul Amin, Hamim Zaky Hadibasyir, Farha Sattar, Muhammad Nawaz
Forum Geografi2025383-397DOI: 10.23917/forgeo.v39i3.13611
Abstract This study develops a spatial synthetic population (SSP)-based computational model to produce realis-tic, high-resolution flood-risk maps for the Upper Bengawan Solo Watershed. It combines Global Hu-man Settlement (spatial distribution) with local population statistics (attributes). The SSP is created for flood risk mapping in the Upper Bengawan Solo Watershed (BSH) using a 100 m grid from the Global Human Settlement Layer…Read More
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Open AccessResearch Article
Pages 398-419
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Optimized Artificial Intelligence-Based Algorithm for Groundwater Potential Mapping in Trenggalek Regency, Indonesia
by Muhammad Hidayatul Ummah, Diyono Diyono
Forum Geografi2025398-419DOI: 10.23917/forgeo.v39i3.12279
Abstract Groundwater management is essential as more than one-third of the world's population relies on groundwater as a source of freshwater. Exploration of groundwater potential serves as a practical im-plementation to ensure accessibility to freshwater. Therefore, this study developed a machine learning (ML), deep learning (DL), and stacking learning (SL) based model for groundwater potential mapping in Trenggalek Regency,…Read More
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Open AccessResearch Article
Pages 420-437
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Balancing Urban Growth and Food Autonomy: An Integrated Machine Learning and Agricultural Statistics Framework for Local Rice Self-Sufficiency in the PNAR of Purwokerto, Indonesia
by Bayu Rizqi, Masita Dwi Mandini Manessa
Forum Geografi2025420-437DOI: 10.23917/forgeo.v39i3.11234
Abstract Rapid peri-urbanization intensifies competition between settlement growth and farmland, creating structural risks to local food security. This study integrates machine learning–based spatial modeling, agricultural statistics, and policy-relevant scenarios to examine how land use trajectories influence local rice self-sufficiency in the Proposed New Autonomous Region (PNAR) of Purwokerto, Indonesia. Multi-temporal Sentinel-2…Read More
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Open AccessReview Article
Pages 438-452
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Indonesia Climate Change: Observations and Future Projections in IPCC AR6 WG I and Beyond
by Tosiyuki Nakaegawa, Takuro Kobashi
Forum Geografi2025438-452DOI: 10.23917/forgeo.v39i3.12760
Abstract This study aimed to comprehensively review and synthesize results specific to the Indonesian archipelago from the IPCC Sixth Assessment Report (AR6) Working Group I, "The Physical Science Basis." At the heart of the Indo-Pacific maritime continent, Indonesia's climate was undergoing significant anthropogenic alteration owing to complex atmospheric and oceanic processes. The review distilled pertinent observations, trends,…Read More
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Vol. 39 No. 3 (2025): December 2025

Mapping the Information of Social Vulnerability of Covid-19 Pandemic in Bandung City, Indonesia

Seasonal Variability in Soil Salinity and its Climatic Drivers in Khulna, Bangladesh

A Phenomenon of Disparity Between Regional Spatial Planning and Actual Land Use in the Citarum River Corridor, Indonesia

Flash Flood Susceptibility Mapping in Phuket Province, Thailand: An Integrated Geo-Information Technology and Logistic Regression Approach

Constraints on Adopting Land Conservation Technologies Among Cassava Farmers in Volcanic Hillslope Prone to Landslide, Indonesia

Flood Risk Analysis Using Spatial Synthetic Population in the Upper Bengawan Solo Watershed, Indonesia

Optimized Artificial Intelligence-Based Algorithm for Groundwater Potential Mapping in Trenggalek Regency, Indonesia

Balancing Urban Growth and Food Autonomy: An Integrated Machine Learning and Agricultural Statistics Framework for Local Rice Self-Sufficiency in the PNAR of Purwokerto, Indonesia

Indonesia Climate Change: Observations and Future Projections in IPCC AR6 WG I and Beyond

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