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Tunas Geografi
Published by Universitas Negeri Medan
ISSN : 2301606X     EISSN : 26229528     DOI : https://doi.org/10.24114/tgeo
Core Subject : Science, Education, Social,
Astronomy Earth & Planetary Sciences Education Environmental Science Other
The main focus of this journal is Geography Learning, Social and Human Geography, Regional Development, Geographic Information Systems, Remote Sensing, Disaster and Mitigation, Geology and Geomorphology, Oceanography and Coastal. This journal target is teachers, lecturers, graduates, and practitioners in the field of geography. As a scientific communication medium, this magazine serves to provide a publication tool for the development of concepts and theoretical studies, and actual issues relevant in the field of Geography. This journal is published twice a year in July and December and is circulated as a publication material for education in geography, geography, or other relevant fields.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 188 Documents
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Analysis of Potential Regional Economic Development in Bengkulu Province in 2022 Saputro, Redo; Sejati, Martina Ayu
Tunas Geografi Vol. 13 No. 1 (2024): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v13i1.50567

Abstract

Bengkulu Province is one of the developing provinces in Indonesia. The distribution of development and economic growth is still one of the main objectives of development in Indonesia, as well as Bengkulu Province. Development and growth are still centralised in Bengkulu City, causing inequality between regions in Bengkulu Province. This research aims to identify the typology of regions in Bengkulu Province, as an evaluation material for the government in determining priority development areas based on business fields in Bengkulu Province. The research method used is quantitative with sharpened through descriptive analysis. This research uses secondary data sources obtained from BPS Bengkulu Province. Based on the existing business sectors in Bengkulu Province, the primary sector or sectors that still depend on or take advantage of natural conditions, such as; agriculture, forestry and fisheries have the largest contribution to the Bengkulu Province GRDP, which is 27.57%, then the next sector is the Wholesale and Retail Trade sector; Car and Motorcycle Repair, with an average contribution of 15.82%, and the Government Administration sector with a contribution of 8.88%. Data were analysed using Klassen's typology, by dividing or grouping into 4 (four) quadrants based on business field indicators. The results of the Klassen typology analysis in Bengkulu Province based on business fields show that there is close to equity in each sector, typology in quadrants 1, 3, and 4 consists of 5 business fields, while the typology results in quadrant 2, only consists of 2 business fields (Manufacturing, Public Administration & Defence; Compulsory Social Security).Keywords: Regional Typology; Klassen Typology; Economy; Development.
Development Strategy of Lau Debuk-Debuk Nature Park Based on Local Wisdom and Community Participation Using the Analytical Hierarchy Process (AHP) Method Siregar, Rezki Indah; Rahmawaty, Rahmawaty; Athorick, Alief
Tunas Geografi Vol. 12 No. 2 (2023): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v12i2.50718

Abstract

The designation of the Lau Debuk Debuk forest area as a nature reserve was based on the Decree of Radja Deli dated September 30, 1934. The area underwent a change in function from a nature reserve to a tourist park, according to the Minister of Agriculture's Decree Number: 320/Kpts/Um/5/1980 dated May 9, 1980, regarding the Change of the Status of the Nature Reserve covering approximately ±7 hectares located in the Simalungun-Tanah Karo TK II Region, North Sumatra TK I Region as a Forest Tourism. In this area, there are hot springs containing sulfur. Lau Debuk-debuk Nature Park (TWA), located in the Berastagi District of Karo Regency, is one of the conservation areas managed by the North Sumatra Natural Resources Conservation Center.The research aimed to analyze local wisdom in the management of Lau Debuk-debuk Nature Park ecotourism. The study was conducted from February to May 2023 in the Lau Debuk-debuk Nature Park located in the Berastagi District of Karo Regency. It employed a qualitative approach involving local residents in the development process of strategies and the assessment of Lau Debuk-debuk Nature Park's ecotourism development based on local wisdom. The results indicate that the priority for the development of the Lau Debuk Debuk Conservation Area is the aspect of local wisdom, which is crucial for the development of a religious tourist area because it is the main reason tourists visit the natural tourist area, Lau Debuk-debuk Nature Park.Keyword: Local wisdom, ecotourism, AHP method
Integration of Remote Sensing and GIS Technologies for Blue Carbon Ecosystem Monitoring in Lakkang Island, Makassar City Nyompa, Sukri; Haris, Haris; Amalul, Muhammad Arib Musba; Albatuul, Fatimah
Tunas Geografi Vol. 12 No. 2 (2023): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v12i2.50719

Abstract

Blue carbon ecosystem has a very important role in maintaining the quality of environments. Form of monitoring processes is needed to be able to provide direction for decision making, related to its management planning. Remote sensing technologies that is integrated with Geographic Information Systems (GIS) is a form of monitoring methods that can be carried out more quickly, easily and accurately. Lakkang Island in Makassar City has a blue carbon ecosystem in form of mangroves, that have very important role in absorbing carbon emissions. This research was conducted with the aim of integrating remote sensing and GIS technologies in monitoring blue carbon ecosystems.  Monitoring processes focused on distribution and extentions of the blue carbon ecosystem which is carried out through a random forest algorithm. Monitoring of the physical condition like density levels of the blue carbon ecosystem is carried trough the NDVI analysis. The results showed that the distribution of the blue carbon ecosystem on Lakkang Island tends to follow the main flow of the Tallo River, with an area of 58.29 hectare. Physical conditions of the blue carbon ecosystem is dominated by dense mangroves that reaching 46% from total area of the ecosystem.Keywords: Blue Carbon, Ecosystem Monitoring, Lakkang
Carrying Capacity of Education Facilities in Banawa Sub-District, Central Sulawesi Province Ibnu, Moh; Saputra, Iwan Alim; Maliki, Rendra Zainal; Budianta, Aziz; Ali, Zaenudin
Tunas Geografi Vol. 12 No. 2 (2023): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v12i2.50934

Abstract

Education is a basic human need with the aim of achieving high productivity. The results of field surveys in Banawa Regency show that the availability of educational facilities to meet educational needs, based on population projections in 2044, has not yet reached the optimal level. Therefore, careful planning is needed in improving and placing educational facilities. This research aims to evaluate the availability of educational facilities according to the needs of the population, by applying an analysis of the carrying capacity of facilities based on public service standards regulated in SNI 03-1733-2004 concerning urban area planning. The methodology used involves analysis of the carrying capacity of facilities to determine the population's need for educational facilities, population projections using geometric formulas to calculate the expected number of residents in the projected year, as well as spatial analysis using Geographic Information System (GIS) software to assess the distribution of facilities. education in Banawa District. The findings from this research indicate that currently there are 82 units of educational facilities in Banawa District, consisting of 39 PAUD units, 31 elementary school units, 8 junior high school units, and 4 high school units. However, additional educational facilities are needed by 7 PAUD units, 5 elementary school units, 4 junior high school units and 8 high school units in Banawa District.Keywords: Education, Facilities, Carrying Capacity, Banawa
Assessing Urban Land Surface Temperature Fluctuations Amidst the Covid-19 Pandemic: A Landsat 8 and Landsat 9 Study of Bandar Lampung City Simarmata, Nirmawana; Santo, A Ki Asmoro
Tunas Geografi Vol. 12 No. 2 (2023): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v12i2.51078

Abstract

Community activities before, during, and after the Covid-19 pandemic have undergone significant changes. This is due to the limitation and exemption of activities set by the government which can also result in changes in surface temperature. Physical separation from the Large-Scale Social Restrictions (PSBB) has led to a decrease in communal activities like traffic and the industrial sector, which has a policy of allowing most employees to work from home. This study intends to examine variations in Bandar Lampung surface temperature that took place in 2020, 2021, and. Identifying surface temperature using remote sensing technology, including Landsat 8 and Landsat 9 images. Both of these images have advantages with a large number of bands, especially the presence of a Thermal Infrared Sensor (TIRS) wavelength which has a sensitivity to detect temperature. Utilization of this wavelength can distinguish parts of the earth's surface that have a hotter temperature than the surrounding area. The land surface temperature (LST) approach can be used to determine the dynamics of surface temperature variations before, during, and after the Covid-19 epidemic. Image processing and analysis are done using Google Earth Engine. The results of the analysis of surface temperatures before Covid, the image recording time in 2020 has a value range of 13oC - 32oC, during the occurrence of Covid, the 2021 recording time has a value range of 3oC - 33oC, while after Covid, the 2022 recording time has a value range of 18oC - 32oC.Keywords: Covid-19, Landsat 8, Landsat 9, LST
Identification of Marine Landforms as a Form of Coastal Area Management in Pangandaran District Hakim, Erwin Hilman; Darsiharjo, Darsiharjo; Yani, Ahmad; Nandi, Nandi
Tunas Geografi Vol. 13 No. 1 (2024): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v13i1.51546

Abstract

Changes in marine landforms in coastal areas are relatively rapid and need to be analyzed to determine environmental management policies. Complex marine landforms are found in the coastal areas of Pangandaran Regency and have strong pressure to fulfill community activities, not only for local communities but also for outside communities. Basically, community activities are adapted to regional environmental conditions. The aim is to optimize the potential of natural resources and minimize environmental degradation, but in reality, this has not been fully implemented. The method used in this research is a descriptive method using a field survey approach. Marine landforms resulting from the accretion process in the Pangandaran coastal area are spit landforms, aeolian-marine sedimentation in the form of coastal dunes, fluvio-marine sedimentation in the form of estuaries and alates, organic-marine landforms and white sand beaches associated with reefs. The landforms resulting from erosion are Cliffs, notches, wave-cut platforms, stacks, and stumps. The impact of landforms resulting from sedimentation in the Pangandaran coastal area is mainly spit landforms that cover river mouths and the occurrence of flooding, puddles, and even accumulation of organic waste, landforms resulting from erosion, the impact of which is the decline of the coastline accompanied by avalanches of material towards the sea, especially on beaches that have non-resistant rocks such as sedimentary rocks and alluvial deposits. Management of the Pangandaran coastal environmental area must be carried out in an integrated manner, land buritan (hinterland), which has steep slopes and resistant rock, is designated as limited production land, and the development of the spit at the river mouth is made into a jetty, and the beach has beach cups waves with rip currents and water bathymetry. -10 meters above sea level, a wave-protecting wall must be built, and the coastal border area must be used as vegetative-based conservation land.Keywords:  Marine landforms, Coastal Management, Pangandaran
Analysis Of Mangrove Land Cover In The Sawo Marine Conservation Area, North Nias District Ifanda, Dayun; Slamet, Bejo; Yunasfi, Yunasfi; Sri Hastuti, Liana Dwi
Tunas Geografi Vol. 13 No. 1 (2024): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v13i1.52747

Abstract

Sawo sub-district of North Nias Regency has a mangrove ecosystem that has been designated as a Regional Marine Conservation Area (KKLD) with an area of 29,230.85 ha. The 2005 earthquake and tsunami are reported to have caused damage to mangrove ecosystems due to rising land levels. The increase in land surface has resulted in the destruction of mangroves in this area. This impacts the sustainability of the mangrove ecosystem in this region and is important to study. This study aims to analyze changes in mangrove land cover after the tsunami in 2006 to 2022 and to analyze the impact of changes in mangrove land cover. The results found that mangrove land cover continues to experience a reduction in area; in 2006, an area of 139.78 ha continued to decline until the remaining 70.87 ha in 2022. This is due to the increasing population growth that causes mangrove forest degradation and land conversion into agricultural land, plantations, and infrastructure. The increase in population is a driving force, land clearing for settlements and plantations is a pressure factor (Pressures), land use change is a factor of existing conditions (State), and reduced mangrove land area is part of the impact (Impact). Coastal spatial planning and counseling to reforestation is a response (Response). Land conversion to other uses contributes to this area's continued loss of mangrove land.Keywords: Mangrove; Land Cover; GIS; DPSIR
Spatial Distribution Analysis of Disaster-Vulnerable Groups in Bantul Regency, Yogyakarta Pahleviannur, Muhammad Rizal; Hizbaron, Dyah Rahmawati; Muta'ali, Lutfi
Tunas Geografi Vol. 12 No. 2 (2023): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v12i2.53033

Abstract

This study aims to analyze the spatial distribution of the population of disaster-vulnerable groups in Bantul Regency in 2022. This study used secondary data from the Central Statistics Agency (BPS) with data on infants, toddlers, children, pregnant or breastfeeding mothers, people with disabilities, and the elderly. The collected data is then processed to determine the density intervals of high, medium, and low vulnerable groups. The study results are presented as a spatial distribution map of the density of vulnerable groups. The results showed that areas with a high density of vulnerable groups were in Kasihan and Piyungan sub-districts. Sites with a moderate density of vulnerable groups are in the Banguntapan, Sewon, Bantul, Jetis, and Imogiri sub-districts. Meanwhile, areas with low density of vulnerable groups are in Sedayu, Pajangan, Pleret, Dlingo, Pandak, Bambanglipuro, Srandakan, Pundong, and Sanden Districts. Mapping the spatial distribution of vulnerable group density can determine areas in Bantul Regency classified as highly vulnerable group density to be prioritized first, then medium to low vulnerable group density. Thus, this research can be helpful for Bantul Regency policymakers in carrying out earthquake disaster risk reduction programs for vulnerable groups referring to the results of spatial distribution maps, and it is hoped that this research can be implemented for other regions in Indonesia.Keywords: Spatial Distribution, Disaster-Vulnerable Groups, Bantul Regency.
Water Quality of Unconfined Aquifer in Universitas Negeri Malang Following the Drinking Water Quality Standard of Indonesian Ministry of Health Utaya, Sugeng; Taryana, Didik; Mashitoh, Ferryati; Arinta, Dicky; Prasad, Ravinesh Rohit
Tunas Geografi Vol. 13 No. 1 (2024): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v13i1.53219

Abstract

Abstract                                                             The quality of groundwater is naturally determined by water-bearing rock characteristics. However, the progression of civilian activities also negatively affects the groundwater quality. Therefore, this study aims to assess groundwater's physical, chemical, and biological characteristics in Indonesia's Universitas Negeri Malang (UM) campus area and evaluate its compliance with drinking water quality standards, particularly the Class A standard. A comparative descriptive strategy was utilized in the study by involving groundwater in the campus area of UM. The focus of the research is water quality in unconfined aquifers. Through purposive sampling, 12 wells were selected to ensure appropriate spatial dispersion. Water samples were collected in sample bottles and tested for physical, biological, and chemical properties. The Perum Jasa Tirta I Malang carried out these water quality tests. Water quality data were analyzed qualitatively, descriptively, and comparatively. This study concludes that (1) the groundwater on the UM campus generally meets the physical criteria for drinking water quality standards; (2) the chemical quality of the groundwater on the UM campus still satisfies the drinking water quality standards; and (3) biologically, the free groundwater on the UM campus fails to meet drinking water quality standards. The novelty of this research is that the biggest threat to the quality of free groundwater in the campus area is bacterial contamination from sanitation activities. Accordingly, it is recommended that groundwater is boiled before being utilized for drinking water purposes to neutralize the E. coli bacteria present in all well water samples.Keywords: Water Quality of Unconfined Aquifer; The Drinking Water; Quality Standard
Percentage of Live Coral Cover in The Regional Water Conservation Area of the Sawo “ Lahewa Water Tourism Park, North Nias District Siregar, Zufriwandi; Barus, Ternala Alexander; Aththorick, T Alief
Tunas Geografi Vol. 13 No. 1 (2024): JURNAL TUNAS GEOGRAFI
Publisher : Department of Geography Education, Faculty of Social Sciences, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/tgeo.v13i1.55178

Abstract

Coral reefs are vital ecosystems facing serious threats due to climate change and human activities. This research aims to evaluate the condition of live coral cover in the Sawo-Lahewa Aquatic Tourism Park (TWP) Regional Marine Conservation Area (KKPD), North Nias Regency, as an important step in conservation and sustainable management efforts. Data was collected at 8 research stations using the Underwater Photo Transect (UPT) method. The research results show that the condition of coral reefs in this area is in the damaged to moderate category, with the percentage of live coral cover ranging between 12.33-45.37% and an average of 26.65%. The highest percentage of coral cover was found on Sarangbaung Island (45.37%) in the medium category, followed by Makora Island (42.13%), Gita Island (35.35%), and Lafau Island (31.07%). Meanwhile, locations with the lowest cover in the damaged category include Gosobaohi_01 Island (18.25%), Gosobaohi_02 Island (15.60%), Sifahandro Sea Waters (13.13%), and Bengkuang Bay Waters (12.33%). This research also looks at the abundance of coral juveniles, coral fish, and megabenthos to provide a broad picture of the health of the coral reef ecosystem. The results of this research can become a scientific basis for developing more effective management strategies. Apart from that, it is also a form of supporting conservation efforts, helping restore damaged ecosystems, and increasing the resilience of coral reefs to future environmental threats.Keywords:  Coral Reefs, Regional Marine Conservation Area, North Nias

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