Indonesian Journal of Geography
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Integration of STEM Technologies in Geography Education
No full textThis study examines the integration of STEM technologies into geography programs in higher education institutions to develop students' research competencies, spatial thinking, and interdisciplinary problem-solving skills. Based on a systematic analysis of 29 recent publications on STEM in geography education, the study identifies five key features of STEM-based learning: organizing research activities, developing practical and analytical skills, encouraging innovative and project-based thinking, effectively using digital tools and GIS, and gradually introducing STEM methodologies. Drawing on the international experience of countries such as Malaysia, China, and Indonesia, a STEM laboratory model for teaching geography is proposed. The results show that the structured implementation of STEM technologies significantly improves students' ability to conduct experiments, analyze data, make predictions, and develop critical thinking, thereby preparing future specialists to solve social, environmental, and economic problems. This study lays the foundation for integrating STEM into geography curricula and offers practical recommendations for creating a laboratory learning environment in universities. In general, geography, using STEM technology, can study or analyze issues such as urbanization, socioeconomic inequality, disease incidence (mapping), migration, natural
The Influence of Trang Community Participation in Enhancing Tourism Potentials: The Moderating Effect of Community Members’ Roles
No full textTourism and hospitality constitute a key driving force of Thailand’s economy, with community-based tourism ubiquitously recognized as a crucial element for improving a community’s economic status. This study aimed to determine the influences of community participation and the moderating effects of the community members’ roles on tourism potential. Quantitative research methods were used. A total of 436 participants were selected using purposive sampling. The sample size was proportionally related to the population of each district in Trang Province. Face-to-face questionnaires were administered and PLS-SEM was employed to test a statistical model to determine the influences of community participation on tourism potential. Results revealed a positive influence by some elements of community participation on the tourism potential and a significant moderating effect by the community members’ roles. The findings of this study confirm that community participation is an integral component of tourism development for enhancing both internal and external tourism potential of a community. This study addresses a research gap by providing empirical evidence on the influence of community participation on tourism potential in Trang’s communities and highlights the importance of community members’ roles as a key factor in enhancing tourism potential, thereby offering valuable implications for community-based tourism development.Received: 2024-01-04 Revised: 2025-12-22 Accepted: 2026-03-10 Published: 2026-04-0
Wetland Users' Livelihood Response to Seasonal Fluctuation in Kumadugu-Yobe River Basin Wetlands
No full textThe wetlands of kumadugu yobe river basin are the livelihood soul of the communities living around the wetlands site. The dominant pastoralist and agrarian population of the wetland site drives their livelihood directly from the wetlands. This study examines how the livelihoods of wetland users respond to fluctuations in wetlands. A total of 294 households were sampled. The interview questions focused on resources extracted from the wetlands, seasonal changes in volumes of wetland resources, and the impact of resource dynamics on general livelihoods. Both Descriptive and inferential statistical tools were employed in analysing the data collected. The study revealed that the wetlands are found to be the source of livelihood to 97% of the wetlands population. Degradation in wetlands productivity affects agricultural output by 61%, 48%, 55%, 71%, 65%, 73% and 47% for rice, wheat, maize, guinea corn, millet, groundnut, and cowpea, respectively, and fishing output by 77%. The shrinking of wetlands favoured wet-season livestock production, but affected dry-season grazing and increased the farmers/harder conflict. The impact of wetlands components' fluctuations on the assets and income of wetlands users is statistically significant at the 99% level. The livelihood of the KYRB wetland population responds significantly to any slight changes in the wetlands. Therefore, the Kumadugu River basin's wetlands degradation means livelihood lost to 97% of the population, thus necessitating proper management strategies to prevent the wetlands from disappearing, to prevent a social catastrophe that can affect the whole Sahel region's stability. Received: 2023-05-14 Revised: 2025-12-11 Accepted: 2026-03-05 Published: 2025-04-01
Potential of UAV-Generated Orthophotos in Assessing Environmental Vulnerability to Landslides in Ngasinan Village, Purworejo Regency, Central Java
Full text linkNgasinan Village in Bener District, Purworejo Regency, has mountainous and sloping topography, which increases the risk of landslides. However, there is currently no available information regarding the village's environmental vulnerability to landslides, which is essential for disaster mitigation planning. This study aims to assess the environmental vulnerability to landslides in Ngasinan Village using orthophotos as an alternative to a census. The primary data used in this research include aerial photographs taken by an unmanned aerial vehicle (UAV) and Ground Control Points (GCPs) to ensure the accuracy of the orthophotos. The vulnerability parameters analyzed include socio-economic and physical environmental aspects. Aerial photo interpretation was used to identify building structures, the type of predominant walls, building age, building area, electricity usage, and distance from proper roads. The Digital Terrain Model (DTM) was used to extract parameters such as topographic clusters, topographic elevation, distance to steep slopes, and distance to very steep slopes. Environmental vulnerability analysis was conducted using interview data and questionnaires from research samples. The results show that Ngasinan Village falls into the medium vulnerability class. Orthophotos proved to be an accurate data source for assessing environmental vulnerability to landslides, with an accuracy rate of 86.66%. Furthermore, information on the vulnerability of houses to landslides can be obtained more easily and quickly through observation and interpretation of orthophotos compared to the census method. Received: 2023-03-29 Revised: 2023-07-31 Accepted: 2025-06-05 Published: 2025-06-1
Optimization of Marine Activities Based on Spatial Regional Planning and Geographical Approaches: A Case Study of Tol Laut Program in Indonesia
Full text linkTol Laut is a marine activity that manages the maritime highway system in Indonesia to ensure and improve connectivity within the national logistics and supply chain system. This system arises because of the inequality of economic growth and development between several regions and provinces. The purpose of this program is to reduce high price disparities so that equity across regions can be achieved. However, this system has not run optimally. The performance of the program, which has entered its eighth year, is still less than 30%. Many problems arise that persist in causing the high price of goods. Hence, this study will identify the causes of the suboptimal Tol Laut by using spatial and geographic approaches on a sample of T-3 shipping route. Based on the spatial approach, it is found that the route is not optimal, so a strategy is obtained to create a new optimal route by producing a more efficient distance of 51,148 nm and a more effective time of 2 hours 18 minutes. Based on the geographical approach, the economic, social, and cultural factors that influence it were obtained. The identification of economic factors shows that high insurance premiums cause price disparities. Through this research, a strategy to produce more efficient and effective tariffs is obtained so as to reduce high disparities. This is important because Tol Laut is national strategic project that needs to be maintained.Received: 2024-04-30 Revised: 2025-08-15 Accepted: 2025-12-03 Published: 2025-12-0
Operational Optimization at Screening Points During a Nuclear Disaster
Full text linkIn nuclear disaster scenarios, residents near affected areas may need to evacuate as the situation escalates. During the initial phase of evacuation in the Fukushima Daiichi Nuclear Power Plant accident following the Great East Japan Earthquake, approximately 20% of evacuees from restricted zones failed to undergo mandatory radiation screening. Niigata Prefecture, Japan, has established a manual for screening point management. However, the framework lacks a systematic examination of multifactorial variables affecting implementation under diverse nuclear disaster scenarios. To protect the public from exposure to radioactive substances released during a nuclear disaster, this study investigates the operational optimization of screening points through stay time modeling. For the considered evacuation scenario, simulations on the effects of the number of evacuees and the number of lanes installed (i.e., inspection capacity) are conducted. The results demonstrate a significant stay time reduction. The optimization criteria for the simulation are presented and the optimal number of lanes for mitigating radiation exposure risk is determined. This modeling approach provides quantitative evidence for optimizing screening point operations, which is particularly crucial during early-phase evacuations when radiation levels peak. The findings contribute to emergency response planning by establishing a framework for balancing evacuation efficiency with thorough radiation screening requirements.Received: 2024-05-24 Revised: 2025-02-25 Accepted: 2025-04-03 Published: 2025-05-26
Navigating Diversity of the Smart City Initiatives in Indonesia
Full text linkThs article explores the diversity and dynamics of smart city initiatives in Indonesia by analyzing thevarious strategies implemented. Ths article aims to show how the diversity of smart city initiatives and how smart city strategies respond to global challenges. Ths article is the result of a systematic literature review. The review’s findings suggest that smart city initiatives in Indonesia focus on digital transformation, strengthening regional readiness, the participation and needs of local communities, especially in facing complex and dynamic urban challenges. By implementing smart city strategies, Indonesia has the potential to develop inclusive smart cities.Received: 2024-07-05 Revised: 2024-08-08 Accepted: 2025-04-24 Published: 2025-04-30
Analysis of Population Growth Trends Based on Geographic Information Systems in East Jakarta
Full text linkThe increase in population is accompanied by equal distribution. In this context, population density of Jakarta is partly due to urbanization and long-term settlement. Therefore, this research is carried out to identify sub-districts experiencing the fastest population growth and the accommodated capacity. Population issues must be a central point of sustainable development allowing every resident and future generations to live healthily, prosperously, productively, and harmoniously with the environment. The relationship between population growth rate (PGR) and spatial aspects such as healthcare facilities, trade facilities, transportation facilities, government offices, education facilities, industry, and the availability of residential buildings from 2017 to 2022 is determined through Geographic Information System (GIS)-based analysis using statistical methods. The trend of PGR in East Jakarta sub-districts is high in the northwest and north, bordering Central and North Jakarta. Meanwhile, spatial aspects influencing high population growth are the availability of residential buildings and schools. Increased residential buildings and public schools in a sub-district due to the zoning policy in student enrollment are directly proportional to population growth.Received: 2024-07-27 Revised: 2024-10-18 Accepted: 2025-01-30 Published: 2025-02-12
Hydrostratigraphic Model Analysis Based on Rock Resistivity Data in the Purbalingga Regency Area, Central Java, Indonesia
Full text linkThe availability of groundwater for irrigation in Purbalingga Regency, requires significant attention since the region has an extensive rice field, necessitating systematic groundwater exploration and the implementation of appropriate management strategies. A geoelectrical resistivity survey has been conducted to investigate groundwater resources and to construct a hydrostratigraphic model that facilitates the interpretation of hydrogeological conditions, including aquifer distribution, groundwater depth, and productive zones. Resistivity data were collected from 16 points distributed across the districts of Kalimanah, Purbalingga, Kemangkon, and Bukateja. The correlation of resistivity logs produced detailed hydrostratigraphic cross-sections, illustrating lithological variations, layer thicknesses, and aquifer distribution. Interpretation down to a depth of 200 m identified two major formations: the Alluvium Formation and the Terrace Formation. The Alluvium Formation, consisting of sandy clay, sand, and clayey sand, exhibits resistivity values ranging from 0.87 to 69.43 Ωm, whereas the Terrace Formation, composed of tuffaceous sandstone, sand, conglomerate, and tuff, with resistivity values between 7.81 and 38.09 Ωm. Hydrostratigraphic modeling indicates that aquifer productivity varies across the study area. Kalimanah District, dominated by low-resistivity deposits (0.87–8.55 Ωm), is interpreted as having the highest aquifer productivity, making it particularly suitable for the development of groundwater-based irrigation. This study introduces a resistivity-based interpretative approach to classify hydrostratigraphic characteristics by correlating resistivity values with local geological conditions
The origin and evolution of the Menui Basin, part of the Matarombeo Terrain, Southeastern Arm of Sulawesi, Based on Geological and Geophysical Data
Full text linkMenui Sub-basin is a part of Matarombeo terrain, located in south-east arm of Sulawesi Island – Indonesia. Matarombeo terrain geologically is bounded by Matano Fault, Lawanopo Fault, and Tolo Trust. Different from western part of Matarombeo Terrain that consist of Mountain, Menui Sub-basin is located at eastern part of Matarombeo Terrain, covered by sea water of Tolo Bay. The aim of this research is to interpreted basin formation and evolution of Menui Sub-basin, based on geomorphological and geological observation, further than stratigraphic and structural analysis. Research method included IFSAR image interpretation, geological field observation, and laboratory analysis such as petrography, paleontology, structural geology and sub surface analysis. Geologic and structural geology data were collected from surface mapping in land of Matarombeo, but sub-surface interpretation beneath Tolo bay were taken from gravity and seismic data. Stratigraphically, study area consist of Cretaceous – Oligocene ophiolite series which thrusted above Mesozoic sedimentary rocks from the continental crust origin. Unconformably above those two rock groups deposited molasse group on Miocene. The study area has been affected by three different tectonic stress phases. Formation and evolution of Menui Sub-Basin is characterized by several distinct events. The events begin from its history as part of Australia (pre-rifting sequence), the detachment from Australia (syn-rifting sequence), movement to its present location (syn-drifting sequence) and during and after the collision with SE Sulawesi (syn-orogen and post-orogen sequences).Received: 2025-11-24 Revised: 2025-12-13 Accepted: 2025-12-31 Published: 2025-12-3