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GEA, Jurnal Pendidikan Geografi
Published by Universitas Pendidikan Indonesia
ISSN : 14120313     EISSN : 25497529     DOI : -
Core Subject : Science, Education,
Earth & Planetary Sciences Education
Jurnal Geografi Gea is the information media academics and researchers who have attention to developing the educational disciplines and disciplines of Geography Education in Indonesia. GEA taken from the Greek Ghea means "God of Earth." Jurnal Geografi Gea provides a way for students, lectures, and other researchers to contribute to the scientific development of Geography Education. GEA received numerous research articles in the field of Geography Education Science and Geography.
Arjuna Subject : -
Articles 10 Documents
 1 
Search results for , issue "Vol 23, No 2 (2023)" : 10 Documents clear
Surface Deformation Analysis Using Differential Interferometry Synthetics Aperture Radar in Rumpin, Cigudeg, Leuwiliang, and Cibungbulang District Period 2018-2022 Rosse Violla Rosendrya; Budhi Setiawan
Jurnal Pendidikan Geografi Gea Vol 23, No 2 (2023)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v23i2.61152

Abstract

Ground movement is surface movement resulting from natural events such as landslides, earthquakes, slumping, or surface runoff. Tracking ground movement is a step in mitigating and investigating unexpected natural disasters. Administratively, the research area is in Bogor Regency, namely Rumpin, Cigudeg, Leuwiliang, and Cibungbulang Subdistricts. The area studied by the author is 9 x 9 km². The method uses more than one interferogram to capture surface topographical transformations accurately. The DInSAR method aims to extract the total phase caused by deformation by eliminating or reducing other contributing things. This study identified material movements in the form of decreases or increases. The activity of monitoring material movement is considered essential to be carried out in monitoring potential landslides in the future. SAR imagery can be used as an early warning for disaster mitigation which still requires further action, such as taking data directly to the field in the hope of getting more accuracy.
Conservation of Groundwater by Absorbing Rainfall in the Ci Hideung Watershed Dede Sugandi; Riki Ridwana; Arif Ismail
Jurnal Pendidikan Geografi Gea Vol 23, No 2 (2023)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v23i2.58510

Abstract

This research aims to: analyze built-up area, rainfall potential, and the effort of groundwater conservation in the Ci Hideung watershed. An experimental method was done to discover the depth of groundwater. Landsat 8 Images are used to analyze the land cover. Rainfall volume is measured by formula; V = Rainfall.area, while the infiltration wells using formula: V = volume (m3).area. The infiltration measurement uses a double ring infiltrometer. Built-up land area are 1.563 km2 (14.77 %) and non built-up area are 9.022km2(85.27 %). The lowest rainfall potential to be absorbed is in May with a volume of 0.282 m3, while the highest is in November with a thickness of 2.912 m. Rainfall volume needs to be absorbed through the infiltration wells on the smallest land unit every 100 m2. The highest rainfall thickness is 2.912, then the volume of 302.40 mm3 was added to the infiltration wells with a length of 1 meter and a wide of 1 meter with a depth of 2.912 meters. Groundwater conservation is highly needed to increase groundwater supply. The highest rainfall volume of 302.40 mm3 could be absorbed in 2.91 hours (174.46 minutes) and the longest is in 3.64 hours. The infiltration wells have a role in storing rainfall to increase groundwater supply so that groundwater surface is also increased.
Coherence Analysis of Sentinel-1A Images in Various Land Covers Satrio Muhammad Alif; Ongky Anggara; Vidiya Ristiana
Jurnal Pendidikan Geografi Gea Vol 23, No 2 (2023)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v23i2.61258

Abstract

Coherence analysis is a valuable technique to assess the suitability and similarity of pixel pairs between two radar images taken at different times. In this study, we conducted coherence analysis on a series of Sentinel-1A images acquired between 2017 to 2022 in Palembang, Indonesia, encompassing various land covers. The analysis was conducted on different land covers, including urban areas, agricultural lands and natural terrains. The study aimed to identify land cover types with high coherence values Sentinel-1A images, as these could indicate stable or unchanged surfaces. The results show that land cover in Palembang which has high coherence is open land and built area. The average coherence value in the study area from 2017 to 2022 is ~0.2 to ~0.27, indicating relatively stable surfaces. This study is useful as initial consideration to utilize Sentinel-1A image for further research in earthquake and disaster analysis.
Biomass Percentage of Organic Soil Layers in The Rasau Jaya Tiga Village Diah Trismi Harjanti; Fidhi Melia Medhina; Sri Buwono
Jurnal Pendidikan Geografi Gea Vol 23, No 2 (2023)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v23i2.55658

Abstract

Peat is a wetland ecosystem characterized by a high accumulation of organic matter with a low decomposition rate. Rasau Jaya Tiga Village is one of the villages in the Rasau Jaya District with peat soil type characteristics of 1,885,478,466.83 m2, which are shallow or thin, and the medium category is 1,825,792,728.85 m2. Therefore it is necessary to do research on the proportion of biomass contained in organic soil layers in the village of Rasau Jaya Tiga with descriptive quantitative research. The sample used is a soil sample. Soil samples were taken to determine peatland biomass using the survey method and the Walkley Black and Dennstedt methods for testing soil samples. The results of testing the soil samples obtained the highest organic carbon content in the A4 C sample (11-20 cm), namely 56.37% and the lowest organic carbon in the E4 sample code (11-20 cm), namely 7.41%, which means that the peat soil content will be released. Organic biomass is the proportion that is contained in organic soil and turns into carbon dioxide (CO2).Keywords: Peat, Peatland, Biomass, Organik Carbon.
Landuse Changes and Policy Directions for Agriculture due to Decreasing Agricultural Land in Mandalika Special Economic Zone Zuhdiyah Matienatul Iemaaniah; Joko Priyono; Rika Andriati Sukma Dewi; Siska Ita Selvia
Jurnal Pendidikan Geografi Gea Vol 23, No 2 (2023)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v23i2.61629

Abstract

Agricultural land is still priority for Indonesian people, the majority of whom are farmers. Along with the times and technological advances, as well as rapidly increasing population growth, agricultural land began to experience a widespread decline. The area of agricultural land that has decreased is a result of the construction of various public facilities that support an area. The Mandalika Special Economic Zone (SEZ) is experiencing land conversion from undeveloped land to built-up land due to the rapid development in the area. The purpose of this study is to determine changes in land use before and after the construction of the Mandalika Circuit and as a policy direction to increase agricultural land productivity. The research method uses GIS analysis for changes in land use and Focus Group Discussions (FGD) to obtain agricultural policy directions. The results obtained are that it is known that there has been a change in land use in Kuta Village after the Designation of the Mandalika Special Economic Zone with the Mandalika Circuit Development, and increasing the construction of built-up land. The landuse changes in ricefields decreased by 25.77 hectares, plantations 113.98 hectares, farms decreased by 86.06 hectares, while other lands is increase of 516.8 hectares. Directions for agricultural policy obtained directions that there has been a determination of sustainable agricultural land in Central Lombok Regency besides that there is a need for the implementation of Sustainable Food Homes (RPL), the concept of agrosilvopastura agriculture, waste utilization and the need for the development of agriculture-based tourism.
Determination and Confirmation of Boundaries for Dhawe Village, Aesesa District, Nagekeo Region using Cartometric Point Methods and High Resolution Satellite Images Acquisition in 2013 Nanin Trianawati Sugito; Ryan Naufal Hamdani; Shalman AlghiFari Adriansyah; Farhan Zidni; Regina Vera Santiara Yahya Putri
Jurnal Pendidikan Geografi Gea Vol 23, No 2 (2023)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v23i2.59078

Abstract

Boundaries are one of the elements that must be depicted in a base map. The focus of this research is on boundaries or adjudication. Regional boundaries experience problems, including boundaries between villages that overlap between one village and another. Minister of Home Affairs Regulation Number 1 of 2017 concerning Village Structuring is the initiator in village structuring, however, there are still minimal regions structuring village authority through regional head regulations. Images are cropped to create indicative administrative map boundaries, a very important first step in regional boundaries. This research aims to determine and confirm the boundaries of Dhawe Village, Aesesa subdistrict, Nagekeo Regency in the context of implementing Permendagri Number 76 of 2012 in determining and confirming village boundaries, and aims to provide geospatial data in the form of village boundary coordinates. The method used in this research uses a cartometric method. After determining the boundary segment cartometry points, it produces 26 points which also contain the coordinates of Dhawe Village and produces agreed segment boundaries. Not only that, the researcher carried out a field approach test to test the correctness of the cartometry position so that the results could properly represent the expected village boundary area
Comprehensive Air Quality Index Assessment Incorporating NO2, PM2.5, PM10, and O3 in Ondo State, Nigeria Akinyinka Akinnusotu; Francis Olawale Abulude; Ebenezer Alaba Adeoya; Oluwole Olumide Adeyemi; Sikirat Bidemi Jiddah-Kazeem; Kikelomo Mabinuola Arifalo; Emmanuel Awogbindin; Acha Sunday
Jurnal Pendidikan Geografi Gea Vol 23, No 2 (2023)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v23i2.61666

Abstract

This study conducted in Ondo State, Nigeria, employs an Air Quality Index (AQI) to evaluate the air quality in nine communities, focusing on pollutants like ozone (O3), nitrogen dioxide (NO2), fine particulate matter (PM2.5), and coarse particulate matter (PM10). The study stands out due to its comprehensive examination of various pollutants and their combined impact on air quality. Satellite data from IQAir's AirVisual website was utilized to track pollution levels across these areas over six months. This data was then used to establish daily AQI values, offering a unified measure to assess air quality and related health risk. The AQI provides a holistic understanding of air quality in Ondo State, aiding in better evaluation of circumstances and potential health consequences. The research highlighted considerable air quality discrepancies across different locations, identifying PM2.5 and NO2 contributors poor air quality. These findings serve a reference for future monitoring and  formulation
Thematic Park As Recreational Areas: Recidents Preferences Enok Maryani; Apay Safari; Anti Riyanti; Hadi Mulyana
Jurnal Pendidikan Geografi Gea Vol 23, No 2 (2023)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v23i2.59192

Abstract

The existence of city parks as Green Open Space (GOS) is very important. It has not only ecological and hidrological function, but also recreational function. It also becomes social capital developer of urban communities. This study examined the existence of GOS in Bandung, and residents’ preferences for choosing thematic parks as recreational place. The study was conducted through surveys, observation, documentation, and literature. The survey was conducted to 100 respondents in 11 thematic parks in Bandung. There were several findings of this study. First, parks in Bandung only covered 43% of the total area of Bandung. In fact, the portion of the parks should be 30% of the total region. Thus, there was a deficiency (56.73%).  Second, there were several factor motivating the residents coming to the park: access, price, and its function as recreational place. Third, the characteristic of park visitors was the quite the same. There is no significant difference in the case of gender, age, education, and occupation. Then, most of the visitor coming to the park on the weekend or after working. Regarding the length of visit, they frequently spent more than 2 hours. Fourth, there was significant correlation of park physical condition, park non-physical condition, and residents’ preferences ( 0.91 and sig. at 0.001). However, there were several things that should be addressed, such as : (1) parking lots, zebra crossing, managers who monitor the park and internet facilities; and (2) limited areas for activities, seating, plant diversity, and garden lighting at night. In addition, the name of the park needs to be carefully considered to suit the purpose, location, and interests of residents.
Cover GEA Vol 23, Number 2 October 2023 Gea Gea
Jurnal Pendidikan Geografi Gea Vol 23, No 2 (2023)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v23i2.63703

Abstract

COVER
Mapping of Mangrove Composition in Ratai Bay, Lampung Province using Pleiades 1 Satellite Imagery Muhammad Sufwandika Wijaya; Muhammad Kamal; Prima Widayani
Jurnal Pendidikan Geografi Gea Vol 23, No 2 (2023)
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v23i2.59612

Abstract

Mangroves are vegetation with significant value in the coastal areas of Indonesia, protected through recognition as protected areas and national rehabilitation programs. In support of these efforts, information on mangrove composition distribution is crucial for biodiversity inventory in mangrove ecosystems. Remote sensing technology, such as Pleiades 1 satellite imagery, can map mangroves down to the family level. On the other hand, Teluk Ratai in Lampung has a well-established natural mangrove ecosystem within a protected area, but limited information is available regarding the composition of vegetation types within it. Therefore, this research aims to map the mangrove vegetation composition in Teluk Ratai using Pleiades 1 satellite imagery. The mapping method involves image segmentation and unsupervised classification to categorize the study area into vegetation classes for field surveys. The final vegetation composition classes are obtained through reclassification based on a key photo approach constructed from field data. The classification represents dominant lifeforms and species. The mapping results of mangrove composition in Teluk Ratai using Pleiades 1 satellite imagery reveal six mangrove composition classes with a total accuracy rate of 92%. The Forest class, dominated by Rhizophora apiculata species, is the largest, covering an area of 203.19 hectares out of the total mangrove area of 277.15 hectares in Teluk Ratai. Additionally, classes dominated by shrubs lifeforms, primarily composed of Rhizophora apiculata and Avicennia marina species, are frequently found in the mudflat areas at the mouth of the Ratai River.

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