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INDONESIA
Indonesian Journal of Geography
Published by Universitas Gadjah Mada
ISSN : 00249521     EISSN : 23549114     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Indonesian Journal of Geography ISSN 2354-9114 (online), ISSN 0024-9521 (print) is an international journal of Geography published by the Faculty of Geography, Universitas Gadjah Mada in collaboration with The Indonesian Geographers Association. Our scope of publications includes physical geography, human geography, regional planning and development, cartography, remote sensing, and geographic information system. IJG publishes its issues three times a year in April, August, and December.
Arjuna Subject : -
Articles 613 Documents
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Potential study of retention Ponds in the Samudra University environment to meet raw water needs and control floods Irwansyah, Irwansyah; Isma, Faiz; Fajri, Haikal; Basrin, Defry
Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.89112

Abstract

This study aims to evaluate the potential locations and volume capacities of retention ponds at Universitas Samudra (Unsam) to reduce flood discharge, provide raw water supply, and ensure water quality. The research supports the concept of a smart and green campus at Unsam. Water availability was calculated using the FJ Mock model, while water demand was projected based on the number of users. The retention pond capacity for flood control and raw water availability was assessed using the HEC HMS model. Water quality testing, including physical, chemical, and biological parameters, was conducted at the BTKLPP Class I Medan laboratory. The results indicate that the water demand at Unsam is 3 m³/day, which can be met by the reliable discharge of 16,344.93 m³/day. The existing reservoir retention pond, with a volume of 509,788.80 m³, contributes to flood discharge reduction; however, its water quality does not meet raw water standards, particularly due to high concentrations of Total Coliform and Escherichia Coli. Meanwhile, the Cotkala-Unsam retention pond can provide 103,596.96 m³ of water with quality that meets acceptable limits.
Use of HAND Model for Estimating Flood-Prone in Serawai Basins Base on Remote Sensing and Sistem Information Geography Purwanto, Ajun; Andrasmoro, Dony; Eviliyanto, Eviliyanto
Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.89225

Abstract

A river basin's flood-prone mapping is essential for managing flood risks, developing mitigation plans, and developing flood forecasting and warning systems, among other things. This research uses the HAND model to estimate the level of flood-prone and its distribution in watersheds. The method used is survey and image interpretation. The data used is DEM imagery with a resolution of 10 meters. Data analysis uses spatial analysis, which includes elevation, hydrological analysis, fill, flow accumulation, flow direction, flow distance, and minus statistical analysis. The results showed that the Serawai watershed has five classes: very prone, prone, moderate, not prone, and very not prone. The very prone class has an area of 112,213.82 ha (65.41%), including Tontang, Sedaha, Nanga Serawai, Begori, Nanga Lekawai, Surga, Buntut Ponte, and Nanga Segulang village. The prone class has an area of 29,356.65 ha (17.14%), spread across the village of part of Beurgea, part of Nanga Segulang, Nanga Jelundung, and part of Tontang village. The moderate level has an area of 18,971.52 ha (11.08%), spread across Tontang, part of Nanga Jelundung, and part of Baras Nabun village. The area with a not-prone is 7,996.20 ha (4.67%), spread across Baras Nabun and parts of  Nanga Jelundung village. For areas that are very not prone, they have an area of 3,004.20 (1.75%), spread over parts of the villages of Sedaha, parts of Baras Nabun, and Nanga Jelundung. Based on the research results, it can be concluded that the HAND Model is an effective and easy-to-use model for estimating flood-prone areas.
Transportation and Differentiation on Rhythmicity of Road Traffic Activities Between Urban and Rural Areas Nguyen, Ngoc Thi
Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.89510

Abstract

Transport and rhythm in transport activities are considered as a mirror reflecting socio-economic activities. In addition to studying secondary sources, the article mainly uses field methods and counts the number of vehicles circulating on 12 main urban routes and 12 inter-district routes along with the interviews of random 200 workers in the transport sector, traders, and sales staff in Thanh Hoa province. The data sources are synthesized, processed and compared to see the differentiation in the number of means of transport in urban areas, revealing it is 2.0 times higher than that in rural areas. The rhythm in transport activities in urban areas is also often more concentrated than in rural areas. In addition, during production and business seasons such as tourist season, agricultural harvest season, and holidays, the volume of transport, turnover and transport revenue is always 3 - 5 times higher than normal. The results of the study contribute to orienting transport operation plans to avoid the consequences of traffic congestion during peak times of the year.
The Development of Disaster Risk Map for Semeru Volcano Eruption 2021-2022, East Java, Indonesia Bachri, Syamsul; Sanjaya, Eli Hendrik; Sendari, Siti; Shrestha, Rajendra Prasad; Irawan, Listyo Yudha; Billah, Egi Nursari; Putri, Nanda Regita; Prastiwi, Mellinia Regina; Hakiki, A.Riyan Rahman; Hidiyah, Tabita May
Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.89918

Abstract

The Semeru Volcano eruption on December 4, 2021 caused damage to social, economic and environmental aspects. The Rejali Watershed (DAS) is one of the areas severely affected due to the eruption. The eruption resulted in 51 deaths, 10,565 displaced people, 1,027 houses damaged, two connecting routes and 43 public facilities damaged. This study mapped the disaster risk areas due to the eruption of Semeru Volcano. This research used Laharz to analyze the lava flow hazard map and weighting for social, economic, physical, environmental, and capacity vulnerability parameters. The results showed that the risk level of Semeru Volcano eruption is divided into three classes: high,  medium, and low risk. The high-risk area is 8915.09 Ha (14 %), the medium-risk area is 2174.74 Ha (17 %), and the low-risk area is 1885.60 Ha (69%). The high and medium risks were located on the upper and middle slopes of the Rejali watershed because the upstream area experiences a narrowing of the river flow (bottleneck) due to direct borders with structural land. The Semeru Volcano disaster risk map results can be used as a reference in sustainable risk management efforts in the Rejali watershed to reduce the impact and damage caused by the eruption.
Climate Change Adaptation in Batang Hari, Jambi: A Case Study of Rainfed Paddy Farmers Nasution, Mulia; Purnama, Setyawan; Sekaranom, Andung Bayu
Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.90325

Abstract

Batang Hari is situated as one of the central rice-producing regencies within Jambi Province. However, the agricultural sector in Batang Hari is severely impacted by climate change in the context of productivity. This study aimed to examine rainfall and temperature trends over the last 20 years (2002 to 2021), assess farmers' perceptions, and identify the current adaptation measures due to the impact of climate change on rainfed paddy fields. This study is of great importance because it employs a holistic approach, integrating quantitative data on climate trends with qualitative insights from farmers. The results showed that rainfall decreased by 20–50 mm/month, and the average temperature increased by 0.4°C in 20 years. The qualitative data on farmers' perceived impact of changes in climate variability reported an agreement with climatological data. The farmers  perceived a decrease in rainfall and a concurrent rise in temperatures. Furthermore, a delayed onset of the rainy season was noted, leading to an adjustment of their planting schedules. Certain adaptation measures to adjust to the perceived impact of changes in climate variability on their rainfed paddy fields were also implemented. These measures included crop management as well as socio-economic adaptation.  Farmers' adaptation measures included modifying crop varieties, adjusting planting seasons, adopting agricultural machinery, and diversifying income through off-farm activities. It is also important to emphasize technological based adaptation to enhance climate resilience, as well as sustainable land management practices, agroforestry initiatives, and soil conservation efforts for long-term agricultural sustainability.
State-of-the-Art Drought Handling in Indonesia Nurlambang, Triarko; Dimyati, Ratih Dewanti; Purbantoro, Babag; Rahatiningtyas, Nurul Sri; Legowo, Dewanti Aisyah; Fakhruddin, Ahmad; Dimyati, Muhammad; Enshito, Grizzly Pradipta Singhasana
Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.92812

Abstract

Droughts tend to become more extreme, longer, and more frequent as an impact of climate change. Droughts now impact various development activities, especially those reliant on water resources, like agriculture for food security. Drought management issues in Indonesia stem from inadequate regulations and laws regarding drought response, due to intricate agency procedures and overlapping responsibilities. Nevertheless, there are currently established partial regulations and laws that govern the management of meteorological data and the accessibility of water resources. Without clear rules, policies, and frameworks, government policies on drought become less effective and overlapping. The research and novelty aim to design an integrated framework for handling drought by examining the present circumstances of relevant agencies using spatial nexus framework that is divided into three stages (construction, deconstruction, and reconstruction). During the first stage, the focus goes toward developing the construction framework will be proposed. The construction framework was conducted descriptively through a desk research method of drought management public policies, institutions, and operating systems for the agricultural sector in Indonesia. Moreover, a panel discussion was held to obtain the data and information about drought management by the government. Field observations were conducted to determine the handling of water resources practically for agriculture. Thus, drought management has been more concentrated on meteorological/climatological and hydrological elements. Moreover, it focuses on the statistical results of public and agricultural activities rather than on their socioeconomic consequences. A spatial approach will become the integration node of meteorological/hydrological elements, socioeconomic components, and agricultural activities.
The Impact of Tidal Floods on Poor Households in the Sayung Coast, Demak Regency, Indonesia Asrofi, Akhmad; Giyarsih, Sri Rum; Hadmoko, Danang Sri
Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.94063

Abstract

The Sayung coast is an area subject to the direct influence of coastal disasters, particularly tidal floods. Tis research aimed to investigate the impact of tidal floods on social and economic aspects in Sayung Subdistrict. In order to achieve the aim, data collection was conducted through a systematic process comprising structured interviews carried out using a questionnaire. The research also implemented a random sampling methodology, comprising a total of 23 informants and in-depth interviews were conducted with key informants to augment its comprehensiveness. Following this, the data processing and analysis followed a mixed-method approach where quantitative and qualitative data were analyzed using the Structural Equation Model (SEM) and grounded theory. The obtained results showed that tidal floods had a significant direct impact is able to influence physical health, employment, and property at 62.32%, 69.59% and and 65.43% respectively. Furthermore indirect impact property is able to influence property value by 62.78%,  physical health, property damages and employment can influence mental health by 71.71% and physical health, employment can affect mobility by 66.89%. The finding accounts for a new insight that tidal floods have direct and indirect impacts on the community, as examined using the mixed-method approach. The study of tidal flood impacts on poor households in Sayung Coastal, Demak, offers different findings from previous ones. Some previous studies discuss the general effects of tidal floods while disregarding the framework of the direct and indirect impacts of the floods on poor households
Discovery of Marine Macrozoobenthos Fossils in the River of Wonocolo Geosite, Indonesia Rahmawati, Laily Agustina; Afiati, Norma; Putranto, Thomas Triadi
Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.94716

Abstract

Wonocolo Geosite is a geoheritage known for the existence of the Kawengan Anticlinal Trap, which is the only one in the world, causing oil to be found in shallow locations. This condition has allowed for traditional mining since the Dutch colonial era and continues today. Geological history states that the anticlinal structure was formed when the Indo-Australian plate collided with the Eurasian plate, resulting in folds and uplift of the seafloor above the surface. However, there has not been much research supporting the truth of the theory. Therefore, evidence is needed to support the uniqueness of the Wonocolo Geosite. The fossil collection method was carried out simultaneously with the collection of substrates at the upstream, middle, and downstream riverbeds using 20 cm diameter PVC pipes at a depth of 10 cm.This study found marine macrozoobenthos fossils during substrate sampling in the upstream, middle, and downstream river beds using a PVC pipe with a diameter of 20 cm at a depth of 10 cm.  The samples were then identified in the laboratory, revealing fossils from the deep sea. The fossils found include Azooxanthellate (Cnidaria), which lives at depths of up to 2000 m; Dentaliida (Mollusca) which lives at depths of 500-7000 m and Foraminifera which also live in the deep sea. This phenomenon is unusual, considering that the fossils were found in a river far from the sea at an altitude of 250 MASL. Therefore, the discovery of marine macrozoobenthos fossils at the bottom of the Wonocolo River strengthens the theory of the formation of the Wonocolo Formation from a raised seabed which is also an important asset supporting the Wonocolo Geoheritage.
Customary Laws and Land: Changes in Landholding System of the Karbis in Assam, India Engtipi, Rashmi; Dhanaraju, Vulli
Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.94825

Abstract

The purpose of this study is to look into the evolving trends in the landholding system of the Karbi tribe in Assam, India, as well as the nature of the customary laws that govern their land. This study challenged the Western notion of land ownership, which frequently promotes individual ownership and private ownership. The present study supported the idea of tribes’ customary rights over land management and communal property. Qualitative data were collected through field observations and oral interviews. This study employed content and discourse analysis methods to interpret the materials gathered. This research can be summarized by arguing that, with changing dynamics, the relationship is becoming clearer as survival dependency transitions from shifting cultivation to settled agriculture. Hill tribes have yet to gain legal entitlement to property in many regions, despite farming it for decades under communal ownership. The rise of private land rights is creating a situation in which more educated members of the society are abusing customary laws for personal gain. The landholding systems of the tribes in India, particularly the hill tribes of Assam, have been overlooked in studies for many decades. These overlooked research findings will contribute to the current knowledge and understanding of land management systems.
Sustainable Tourism Ecosystem In Strategic National Tourism Area (KSPN) Borobudur Yogyakarta and Prambanan (BYP) Muhamad, Muhamad; Baiquni, Muhammad; Wiryanto, Wiryanto
Indonesian Journal of Geography Vol 56, No 3 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.96409

Abstract

This research aims to understand the tourism ecosystem as a complex phenomenon. The study attempts to design aspects that can advance the tourism sector, such as linkage, value chain, and interconnectivity systems. To maximize the tourism sector, the support of the BGCM (business, government, community, academic, and media) is needed to run as well as possible. Research conducted in Borobudur Yogyakarta Prambanan (BYP). This research uses the method of explorative descriptive research with a qualitative approach, aimed at studying objects naturally and in depth, where the researcher is the key instrument. The results of this study resulted in a road map of Sustainable Tourism Development relating to the application and issues of sustainable tourism with the optimization of the role of BGCM.  BGCM has a role in creating tourism benefits that yield to the community and the environment in the National Strategic Tourism Area.

Page 57 of 62 | Total Record : 613

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