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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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The Socio-economic Conditions of Fishers on Indonesia's Beeng Laut Island Costantein Imanuel Sarapil; Eunike Irene Kumaseh; Getruida Nita Mozes
Indonesian Journal of Geography Vol 54, No 1 (2022): 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.60546

Abstract

This study aimed to determine the socio-economic conditions related to marketing margins of demersal fish in Beeng Laut Island, Sangihe Archipelago Regency, North Sulawesi Province, Indonesia, using survey methods with interview and questionnaire techniques. Most fishers on Beeng Laut Island have a primary school education, houses constructed using wood, and an age range of 20 to 30 years. Margin marketing demersal fish on Channel marketing III (P à Pp à Pe à Ka) and Channel IV (P à Pp à Rm à Ka) is inefficient due to the limited electricity supply. This has an indirect effect on fish quality due to a lack of readily available ice to handle catches. Increased demersal fish marketing efficiency may result in a significant revenue for fishers. Therefore, the government should boost energy availability to enable people create and purchase ice to aid with fish preservation. It should also establish cooperatives for fishers and provide alternative work, such as conservation activities or marine tourism development.
Structure and tree diversity of an inland Atlantic Forest–A case study of Ponte Branca Forest Remnant, Brazil Rorai Martins-Neto; Antonio Tommaselli; Nilton Imai; Adilson Berveglieri; Mariana Thomaz; Gabriela Miyoshi; Baltazar Casagrande; Raul Guimarães; Eduardo Ribeiro; Eija Honkavaara; Mariana Campos; Raquel de Oliveira; Hassan David
Indonesian Journal of Geography Vol 54, No 1 (2022): 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.61120

Abstract

The Atlantic Forest is the most fragmented and threatened domain in Brazil. The main remnants are in the coastal regions. This paper describes a study performed at a protected federal reserve in Brazil located in western of São Paulo state, which is a transition with the Savannah. A forestry survey was made for understanding the forest structure, diversity, and floristic composition of an inland Atlantic Forest area. A total of 3,181 individuals with a Diameter at Breast Height over 3.5 cm were sampled. The data sample was composed of 29 families and 64 species from 15 plots. Forty-seven percent of the species were classified as a pioneer, 42% as secondary, and 11% as climax. The species Eugenia uniflora presented the highest importance value index. The values of Shannon-Weaver diversity and Pielou equitability index indicate the area has less diversity than others in the same phytophysiognomy and was dominated by a few species with many individuals. Several anthropogenic disturbances altered the forest cover of the Ponte Branca Forest remnant, which is in the process of secondary succession.
Sustainable Tourism Development in Indonesia: Bibliometric Review and Analysis Megandaru Widhi Kawuryan; Aqil Teguh Fathani; Eko Priyo Purnomo; Lubna Salsabila; Novia Amirah Azmi; Deni Setiawan; Mochammad Iqbal Fadhlurrohman
Indonesian Journal of Geography Vol 54, No 1 (2022): 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.64657

Abstract

Along with the many potentials in developing the tourism sector and impressive research in the tourism sector, in the last ten years, interest in studying and researching the sustainability of the development of Indonesia's tourism sector has continued to increase significantly. However, despite the increase, the scientific literature published so far has not evaluated in detail the sustainability of Indonesia's tourism development. This study analyzed 861 articles published until February 2021 in the Scopus database on Indonesia's tourism development sustainability. In conducting the analysis, the VosViewer software was used to find results about the most contributing authors, the number of citations, regions, organization, publica-tions and co-occurrences of keywords that could provide new gaps in future research. The results obtained showed trends and impacts of literature published to date, then new gaps/novelties for further research related to the themes of sport tourism, mangrove tourism, sharia tourism and Indonesia's tourism resilience were found. With these results, the next researchers should raise the theme so that Indonesian tourism's sustainability can develop adequately to have a more significant impact in the future.
Investigation of a Relation between Radiogenic Heat Production Rate (RHPR) and Land Surface Heat Temperature (LST) from Thermal Bands of ASTER and Landsat-8 (TIR-Data): Case Study of West Ras Gharib area North Eastern Desert, Egypt Samah Saeed Abdeen; Sami Hamed Abd El Nabi; Moataz El said El Manawy; Reda Esmat El-Arafy; Karam Samir Farag
Indonesian Journal of Geography Vol 54, No 1 (2022): 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.64975

Abstract

In this paper, an attempt was tried to study the relation between the land surface heat temperature (LST), extracted, from the thermal emission infrared data (ASTER-TIR) and (Landsat-8-TIR) imagery and radiogenic heat production rate (RHPR) that calculated from airborne gamma-ray spectrometric data applied on west Ras Gharib area at Northeastern Desert of Egypt. The area is geologically covered mainly by Precambrian basement rocks, which are unconformably overlain by Phanerozoic sedimentary succession. The method used for extraction land surface heat temperature for both ASTER-TIR and Landsat-8-TIR images is the reference channel emissivity technique and founded as the best method comparing to others. The study results showed a relative higher RHPR threshold value reached 4.8 μW/m3. On the other hand, ASTER-TIR Land Surface Temperature (AST-LST) ranges between 27.64oC to 47.2oC and, the Landsat 8-TIR Land Surface Temperature (LS8-LST) ranges between 30.64oC to 50.68oC. Comparing all results, there were a weak relationship or to some extent parallel relation between RHPR and satellite LST; as when the value of the Y-axis is constant, there are multiple values on X-axis, so it is not possible to deduce the value of one variable in terms of the other. The poor relation is regarded to the very weak RHPR which is not enough to affect the surface heat temperature, emission that could be detected by both thermal sensors of ASTER and Landsat-8 satellite TIR data. Other factors such as: topography, wind, shading and scattering, rock moisture and density, can strongly affect the surface temperature. In conclusion, the output results could be improved in areas of very high radioelement concentrations especially 235U, and through the use of the enhanced spatial resolution of future satellite TIR imaging instruments. 
Livelihood of Independent Waste Pickers (Tokai) at Dhaka City in Bangladesh: Does it Incidental Choice of them? Md. Abdul Malak; Sumaiya Fahim Prema; Abdul Majed Sajib; Nahrin Jannat Hossain
Indonesian Journal of Geography Vol 54, No 1 (2022): 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.65461

Abstract

The study reveals the status of waste pickers, their livelihood asset profile and the vulnerability due to climatic and anthropogenic factors. It considered the independent waste pickers of Dhaka City, known as Tokai, who collect waste, especially recyclable and reusable materials. Using semi-structured interviews and personal histories, two groups of participants were explored qualitatively: independent waste pickers and other stakeholders. Waste-picking is sometimes the first source of income for persons displaced to Dhaka as a result of human and non-human changes. While most were homeless sheltering anywhere they could, they made a valuable contribution to the recycling industry and to improving environment and ensuring others' well-being, filling a gap left by councils failing to collect the waste produced daily by residents and industry. However, their efforts are largely unrecognized, and their labour stigmatized. Consequently, they have far less access to health, education, credit and utilities. Moreover, poverty and lack of family guidance may make them vulnerable to pursuing involvement in ill-advised political activism. The study concludes that the government and others need to shape a policy that takes into account the livelihood and survival needs of waste pickers and strive to ensure the provision of decent work within this sector and recognition of their societal contribution. 
Spatial Environmental Quality Assessment Of Settlement Area In Tangerang City Dwi Nowo Martono; Halvina Grasela Saiya; Saiful Amri
Indonesian Journal of Geography Vol 54, No 1 (2022): 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.65825

Abstract

This study aims to describe the role of changes in the characteristics of spatial patterns on the environmental quality in Tangerang City, Indonesia. It was carried out by detecting and explaining the effect of thermal comfort on the residential area using a combination of spatial and statistical analysis methods. The results showed that the changes in the characteristics of the spatial pattern, which include building density, vegetation area, accessibility, and road network connectivity significantly affected the spatial environmental quality index (IKLS) and temperature heat index (THI). Meanwhile, the changes in THI were caused by the continuous decline in vegetation area and an increase in population due to the urbanization process of Jakarta and other cities.
Application of HEC-HMS model and satellite precipitation products to restore runoff in Laigiang river basin in Vietnam Ngo Anh Tu; Nguyen Huu Xuan; Nguyen Thi Tuong Vi; Phan Thai Le
Indonesian Journal of Geography Vol 54, No 1 (2022): 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.66176

Abstract

The Laigiang river basin in the South Central Coast of Vietnam plays an important role in the socio-economic development of Binhdinh Province. In recent decades, the region has experienced commonly flooding in vast areas. This research aims to simulate event-based rainfall-runoff modelling, a historical flood event in December 2016, by applying the HEC-HMS model and rainfall data from CHIRPS. The CHIRPS data is an acceptable potential data input of the hydrology model. These have been confirmed through reliable validation indexes: The peak flood flow rate of 2,542.6 m3/s corresponds to the flood frequency of 5%; NSE with the value at 0.95; R2 coefficient reached 0.87; PBIAS being around 0.45, and PFC being at 0.89. It shows better performance in the rainy season than in the dry season. Inclusive, the CHIRPS rainfall data set and the HEC model could be used for some operational purposes in weather forecasting, especially for flood warnings in river basins in the South Central Coast, Vietnam.
A New Approach of the Tsunami Mitigation Strategies for the City of Banda Aceh, Indonesia Halis Agussaini; Sirojuzilam Sirojuzilam; Rujiman Rujiman; Agus Purwoko
Indonesian Journal of Geography Vol 54, No 1 (2022): 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.66500

Abstract

Ten years after rehabilitating and reconstructing some coastal areas of Banda Ache struck by the tsunami, and the city is currently repopulated, with most of its open land and community ponds converted into settlements. This rise in population needs to be controlled to minimize damages and casualties, assuming the tsunami hits again. Presently, the Banda Aceh City spatial plan for 2029 does not have a clear concept of tsunami mitigation, specifically in the spatial pattern of coastal areas. Therefore, this research aims to remap the vulnerability level of the Banda Aceh City coastal area from the tsunami hazard and determine alternative strategies based on the tsunami level in achieving safe, comfortable, productive, and sustainable spatial planning goals. This starts by analyzing the wave height generated by the earthquake that triggered this natural disaster and mapping the spatial distribution of the area and the tsunami's inundation height. The results showed that the proportionate regions prone to Level-2 tsunami were worse than the 2004 disaster based on the water level markers built in the city. The spatial planning strategies for the coastal area of Banda Aceh City are carried out by determining the level of tsunami-prone and the potential of the area's resources through a new approach of the multi-layer tsunami defence systems by combining sea dike, greenbelt, silvo-fishery, and the elevated road.
Impacts of Climatic Variation on Water Balance and Yield of Watershed (Insights from The Kaduna Watershed, North Central Nigeria) Japheth Daramola; Toriman Mohd Ekhwan; lam Kuok Choy; Jaafar Mokhtar; Adeyemi Jibrin Alakeji
Indonesian Journal of Geography Vol 54, No 1 (2022): 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.68138

Abstract

Many authors have identified climate variation impacts in Nigeria. However, the effects on water balance and water yield have not been thoroughly considered. Good knowledge of water balances is vital for sustainable water resource management in northern Nigeria due to high water stress and increased evapotranspiration compared to another part of the country. Hence, the study presents the first detailed climatic variation impacts on watershed water balance and water yield in north-central Nigeria. Soil and Water Assessment Tool (SWAT) was applied to predict the hydrological procedures. The Kaduna watershed (32,124 km2) calibrated and validated streamflow results were run independently using three land cover maps of 1975, 2000, and 2013. The model performance evaluation was statically attained using the coefficient of determination (r2), Nash-Sutcliffe (NS), besides the percentage of observed data (p-factor). The model evaluation result of r2 (0.80), NS (0.71), and p-factors of 0.86 indicated the model satisfactory performance evaluation of streamflow predictions. The streamflow estimation revealed Threshold depth of water (GWQMN.gw) as the most sensitive parameter. The findings discovered declined between 1975 and 2013 in precipitation, water yield, surface runoff (SURQ_mm), lateral flow (LAT_Qmm), deep aquifer (Deep_mm) by 4.2%, 37.3%, 56%, 15%, and 100% respectively, while shallow groundwater aquifer (GW_Qmm) experienced 10% decrease between 1975 and 2000 and appreciated by 6% between 2000 and 2013, evapotranspiration (ET_mm) increase by about 22.2% between 1975 and 2013. These results suggest considerable effects of climate variation in the watershed and call for further investigation to mitigate climate change influence. 
The Role of Online Food Delivery Services in the Competitiveness of the Yogyakarta Culinary Industry during the Covid-19 Pandemic Dariya Nawar Salma; Rini Rachmawati
Indonesian Journal of Geography Vol 54, No 1 (2022): 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.68508

Abstract

Culinary business actors in the culinary industry at Yogyakarta provide Online Food Delivery Services to facilitate the trade. This study, therefore, aims to identify the benefits of Online Food Delivery Services as well as the market reach from the providers’ point of view, and further analyzes the intrinsic role played in increasing competitiveness in the culinary industry of Yogyakarta during the Covid-19 pandemic. The process involved a qualitative method, where data was collected through semi-structured interviews, observation, and documentation. Subsequently, qualitative descriptive analysis techniques were used for analysis. Based on the study results, online food delivery services were determined to be beneficial in terms of effectiveness and efficiency in performance, organizational structure, and strategic and competitive advantage. The providers reportedly reached markets at distances up to 25 km–30 km. These actors play a significant role in increasing the competitiveness of the creative industry, particularly in the culinary sub-sector in Yogyakarta City during the pandemic. Moreover, this assumption is based on aspects of competition between similar companies, where the bargaining power of buyers, the threat of new entrants and substitute products were significant.

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