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Geographica: Science and Education Journal

geographica
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Published by Universitas Sembilanbelas November Kolaka

ISSN : 27236560 EISSN : 27164837 DOI : https://doi.org/10.31327/gsej.v4i2

Core Subject : Science, Education, Social,

Earth & Planetary Sciences Education Environmental Science Social Sciences

Geographica: Science and Education Journal is the information media for academics and researchers who have attention to developing the Geography both science and education. Geographica: Science & Education Journal is published by Study Program of Geography Education, Universitas Sembilanbelas November Kolaka. It provides a way for students, lecturers, and other researchers to contribute to the scientific development of Geography. Our scope of publications encompasses geography education, physical geography, human geography, regional planning and development, remote sensing and GIS. Geographica: Science and Education Journal welcomes original Research Articles and Review Papers. Geographica: Science & Education Journal publishes its issues twice a year in June and December.

Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Proses Permukaan Bumi

Articles 42 Documents

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HYDROLOGICAL STUDY ON LIMESTONE MINE DRAINAGE SYSTEM IN PT. ADS - SOUTH SUMATERA Charly Bravo Wanggai; Ceni Febi Kurnia Sari
Geographica: Science and Education Journal Vol 1, No 2 (2020): June
Publisher : USN Kolaka

The groundwater availability in an area with mineral deposits is measured by the geological and geomorphological characteristics of the area. The hydrological study on limestone mining in PT. ADS, South Sumatera aimed to acquire data and information regarding rainfall characteristics, drainage basin and catchment area, infiltration value, and surface water flow pattern at the limestone mining site and nearby area; this is to formulate a basis of reference in creating drainage system. The study employed Extreme Value Gumbel formula to analyze the expected daily rainfall. A calculation on the rainfall return period relied on two factors, i.e., the planned mining duration and natural events, such as seasonal flood per two years. Moreover, Mononobe formula was used to calculate and convert the daily rainfall intensity in the form of hourly rate. The mine drainage system was regarded necessary in the site since the watery area is potential to hinder the production as well as to cause work accidents; on top of that, the terrain is dominated by relief of wavy hills with varying waves and slopes ranging from 10°-70°.

THE EFFECT OUTDOOR STUDY TO THE STUDENTS ACTIVENESS IN SENIOR HIGH SCHOOL Andri Estining Sejati; Nasarudin N; Fahrudi Ahwan Ikhsan
Geographica: Science and Education Journal Vol 1, No 1 (2019): December
Publisher : USN Kolaka

Problems in the class indicate students are less active in learning. Students are more dominant in receiving one-way material. The low desire of students in learning participation in the form of asking, answering, or presenting. The outdoor study is the chosen learning method to overcome these problems. The outdoor study is useful for student knowledge, learning, and student motivation. This study aims to determine the effect of outdoor study on the activeness of high school geography students. This research is included in a quantitative methodology with a type of quasi experiment. The researcher determined purposely XI IIS 1 as the experimental class and XI IIS 2 as the control class. Research in Muhammadiyah 1 Babat High School, Lamongan Regency even semester 2015/2016 academic year. The data in this research were analyzed using descriptive quantitative with percentage. The results show that the application of outdoor study provides a change in student active; this can be seen from the category of the active per student in the experimental class, none of them get less active. The average overall active there is a difference of 12.43 from the control class. The average score of questions asked to answer, respond, and presentations of the experimental class are all higher than the control class

EROSION HAZARD ANALYSIS USING SPATIAL MODELING: A CASE STUDY OF THE TEMBESI WATERSHED, SAROLANGUN REGENCY, JAMBI PROVINCE Fadhila Afnan; Dasrizal Dasrizal; Erna Juita
Geographica: Science and Education Journal Vol 4, No 1 (2022): June
Publisher : USN Kolaka

The formulation of the problem in this study is the characteristics of erosion, the level of erosion hazard, and the spatial model of erosion hazard in the Tembesi watershed, Sarolangun Regency, Jambi Province. Then the main purpose of this study is to determine the level of erosion hazard at the research location points, which will then be spatialized using ArcGIS 10.4. In this study, the research method used is the descriptive qualitative method. Because seeing the information and description of the level of erosion hazard in the Tembesi watershed, Sarolangun Regency, Jambi Province. The data of this study include primary data, namely direct measurements and observations in the field and secondary data, namely data obtained through the relevant agencies. The results obtained in this study are: First, the erosion characteristics at the research location points have two dimensions, namely V and U-shaped dimensions with a depth of 30 cm and some 30cm. Second, the erosion hazard level was calculated using the USLE method, with the results at the research site points 2.00 tons/ha/year. Third, the spatial model used in this research is Arc GIS 10.4. With each level of erosion, hazards are 5.87 (very mild), 29.36 (mild), 2.94 (very light), 2.94 (very mild), 5.87 (very mild), 29, 36 (light), and 205.52 (heavy).

LANDSLIDE SUSCEPTIBILITY ZONATION, KABILA BONE SUB-DISTRICT, BONE BOLANGO DISTRICT, GORONTALO PROVINCE I Gede Sindu Pratama; Sri Maryati; Ronal Hutagalung
Geographica: Science and Education Journal Vol 3, No 2 (2021): December
Publisher : USN Kolaka

The research area is administratively located in the Kabila Bone Sub-district, Bone Bolango District, Gorontalo Province which has an area of 143,51 km2. The purpose of the research is determine landslide susceptibility zonation of Kabila Bone Sub-district , Bone Bolango District, Gorontalo Province. The method used in this research is geological survey method and analysis of geographic information system. The parameters used refers to Peraturan Menteri Pekerjaan Umum No. 22/PRT/M/2007, which includes of slope, soil condition, lithology, rainfall, slope water system, seismicity, and vegetation. The result of research show that Kabila Bone Sub-district consists of a zone with a low level of susceptibility which has an area of 1258,76 ha, a zone with a medium level of susceptibility which has an area of 4026,90 ha, and a zone with a high level of susceptibility which has an area of 502,03 ha. Zones that have a high level of susceptibility are distributed in several villages, namely Botubarani Village with an area of 117,92 ha, Huangobotu Village with an area of 89,35 ha, Bintalahe Village with an area of 64,22 ha, Oluhuta Village with an area of 119,98 ha, and Olele Village with an are of 104,01 ha.

GROUNDWATER USE ZONING MAPPING USING GEOMORPHOLOGICAL APPROACH FOR HANDLING THE WATER CRISIS: STUDY CASE OF KECAMATAN PAGAK, KABUPATEN MALANG Damar Panoto; Irfan Helmi Pradana; Melinda Meganagatha Rosbella Devy; Didik Taryana
Geographica: Science and Education Journal Vol 2, No 1 (2020): December
Publisher : USN Kolaka

Kecamatan Pagak, Kabupaten Malang is an area which is dominated by karst landform. Basically, Karst is landform which is vulnerable to drought for the very minimum of waterflow surface. Underground river flows are more developed in karst landforms due to the large number of fractures. Based on these problems, this research seeks to solve the problem of water crisis in karst landforms by utilizing groundwater. It chose geomorphological approach to find the highly potential groundwater landforms so that these they can be used as groundwater infiltration zones. Geomorphological mapping is carried out by identifying aspects of morphology, morphogenesis, morphoarrangement, and morphocronology. Through the geomorphological mapping, it was obtained nine units of landforms in the research area. The P4Fv1 landforms are units that have high groundwater potential which can be utilized in large quantities.

A STUDY OF POPULATION PRESSURE TOWARD AGRICULTURE LAND IN MOJOLABAN SUBDISTRICT, SUKOHARJO – CENTRAL JAVA Agus Sudargono; Pranichayudha Rohsulina; Talitha Rahmawati; Agung Hidayat
Geographica: Science and Education Journal Vol 1, No 2 (2020): June
Publisher : USN Kolaka

Indonesia is an agricultural country in the tropic area with a high potential of agricultural land. This condition is a good ecosystem for human, animal and plant life. With all those potentials, the population in Indonesia has reached more than 260 million people currently. Surely, such a large population brings logical consequences in which a large amount of land must be provided by the State to support the housing needs and to meet the food and clothing needs. As a matter of fact, the population of Indonesia continues to increase over the time. The increase in population in many areas has caused the conversion of agricultural land into residential land. Therefore, the agricultural land continues to have pressure constantly. The Population pressure to agricultural land is a comparison between the number of people and the minimum land area to be able to live properly. This study aims to analyse the variations of population pressure on agricultural land in each village in Mojolaban Sub-District. The research method used to analyse the population pressure was by utilizing the formula of Otto Sumarwoto I, where residents are considered to only live on cultivated agricultural land. The results showed that population pressure toward agricultural land in Mojolaban Sub District was high. There were 11 villages and 4 villages that were categorized as high and low population pressure on agricultural land respectively.

ANALYSIS OF SHALLOW GROUNDWATER QUALITY FOR DRINKING WATER NEEDS Ahmad Iskandar; Nasarudin Nasarudin; Sudarwin Kamur; Yusuf Retq
Geographica: Science and Education Journal Vol 4, No 2 (2022): December
Publisher : USN Kolaka

This research is based on water conditions in the Village of 19 November. There are some wells that do not meet the standards of clean water issued by the Ministry of Health of the Republic of Indonesia Number 492/Menkes/Per/IV/2010. The purpose of this study was to determine the quality of shallow groundwater (wells) in 19 November Village. Based on regulations, the parameters measured consist of physical and chemical parameters.Physical parameters consist of odor, color, taste, temperature, and total dissolved solids, while chemical parameters consist of pH, BOD, and COD. The data in this study were collected using observation techniques and laboratory analysis. Furthermore, the data is analyzed using descriptive statistics and the storet method. Based on the results of the analysis, it was found that the quality of shallow groundwater in 19 November Village was in the moderately polluted class and did not meet the standards. This is because the concentration of physical and chemical parameters has exceeded the set threshold.

THE EFFECT OF SELF-EFFICACY ON GEOGRAPHY LEARNING OUTCOMES OF STUDENTS OF CLASS X IIS SMA NEGERI 1 TANGGETADA IN THE COVID-19 PANDEMIC Luluh Inda Sari; Samsi Awal; Eko Hariyadi
Geographica: Science and Education Journal Vol 3, No 2 (2021): December
Publisher : USN Kolaka

Study this aim for knowing influence self-efficacy to results study geography student Class X during the COVID-19 Pandemic. The research type is Ex-post facto. Population and sample study this consist from whole student class X IIS SMA Negeri 1 Tanggetada. Instruments used that is in the form of questionnaire self-efficacy consisting of 34 statements, documentation used for see results study geography student class X IIS. The analysis used in the research is descriptive and inferential. Research results are self-efficacy student Class X IIS SMA Negeri 1 Tanggetada during the COVID-19 Pandemic including in category medium, with students belonging to the category currently totaling 45 students or 50% of sample research. For result data study geography student class X IIS SMA Negeri 1 Tanggetada including in category medium, with students belonging to the category currently totaling 37 people or 42% of sample research. There is influence significant positive self-efficacy student to results study geography student class X IIS SMA Negeri 1 Tanggetada during the COVID- 19 pandemic 2021/2022 lesson, coefficient determinant (r 2 ) of 0.497 or 49.7% which means that the independent variable of self-efficacy has an influence of 49.7% on the learning outcomes of geography. It shows that self-efficacy students give contribution positive or good support in increase results study geography students.

The Need of Monitoring Forest Fires through Burned Area Mapping in Indonesia Risty Khoirunisa
Geographica: Science and Education Journal Vol 3, No 1 (2021): June
Publisher : USN Kolaka

Forest fires have become a regular phenomenon in Indonesia, especially in the dry season. They can be caused by natural and anthropogenic factor. Since Indonesia’s soil, especially Sumatra and Kalimantan, is a peatland type, this type of soil is highly inflammable, thus a small fire can easily spread and become massive. This phenomenon provenly disturbs the balance of the ecosystem and socio-economy of the affected country. Previous forest fires resulted in a higher risk of respiratory problems and increased mortality or the death of infants and children. The loss of biodiversity and the increasing amount of Green House Gas (GHG) Emissions that affected the change of climate is also the effect caused by those. For those reasons, the need of monitoring forest fires is essential, especially in climate change mitigation as fire disturbance is one of the key variables in it. This paper will further discuss the method of monitoring through burned area mapping using remote sensing techniques.

IDENTIFICATION OF VULNERABILITY AREA OF MASS MOVEMENT USINGSTORIE METHOD IN BONE BOLANGO REGENCY, GORONTALO PROVINCE Joni Djakun; Sri Maryati; Muh. Kasim
Geographica: Science and Education Journal Vol 1, No 2 (2020): June
Publisher : USN Kolaka

Based on the analysis result, the research sites are divided into three levels of mass movement vulnerability; low as much as 10,98, moderate as much as 84,41, and high as much as 4,61% out of the entire research areasMass movement occurs due to the natural process in the changes of surface structure, in which there is a disturbance of stability in the soil or rocks making up the slope. The disturbance is caused by some conditions such as a relatively steep slope, the condition of rock or soil making the slope, high rainfall intensity, uncontrolled human activity in exploiting the nature as well as the state of geological structures. The research site is located in three sub-districts in Bone Bolango District; Suwawa Timur, Suwawa Tengah, and Suwawa Selatan. These three sub-districts have a history of mass movement during the rainy season. The availability of up-to-date data is required to reduce the impact caused by the mass movement. This research aims to identify the areas prone to mass movement. One of the approaches applied to identify the areas prone to mass movement is Storie Index method by calculating the parameter, which is considered influencing the mass movement. Among others, the parameters are steepness of the slope, rainfall, type of soil, land usability, and lineament density as the parameter of geological structures.

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Gaby Nanda Kharisma

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+6281253075641

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Sulawesi tenggara

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Gaby Nanda Kharisma

Contact Email gabykharisma@usn.ac.id

Phone +6281253075641

Journal Mail Official geographica_gsej@usn.ac.id

Editorial Address Jalan Pemuda No. 339, 93517 Kolaka, Southeast Sulawesi, Indonesia

Location Kab. kolaka, Sulawesi tenggara INDONESIA

Abstract

Abstract

Abstract

Abstract

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Abstract

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Abstract

Contact Name
Gaby Nanda Kharisma

Contact Email
gabykharisma@usn.ac.id

Phone
+6281253075641

Journal Mail Official
geographica_gsej@usn.ac.id

Editorial Address
Jalan Pemuda No. 339, 93517 Kolaka, Southeast Sulawesi, Indonesia

Location
Kab. kolaka,

Sulawesi tenggara

INDONESIA