JURNAL GEOGRAFI Geografi dan Pengajarannya

SPATIAL ANALYSIS OF LAND CARRYING CAPACITY AND RESIDENTIAL GROWTH IN SIRIMAU DISTRICT, MALUKU PROVINCE, INDONESIA

Mohammad Amin Lasaiba — Sun, 30 Jun 2024 00:00:00 +0700

Population growth and urbanization pose challenges in maintaining sufficient land-carrying capacity. This research analyzes land carrying capacity and urban development in Sirimau District, Ambon City. Direct observation and document collection are used to collect data. A quantitative descriptive approach and spatial analysis with overlays of relevant parameters are used in data analysis. The results show that the most significant growth occurs in Batu Merah Village. Land carrying capacity calculations reveal an average decrease in residential land carrying capacity. In 2022, Ahusen Village, Rijali Village, and Galala Village recorded a decline in land-carrying capacity below 1, indicating that these areas can no longer accommodate the remaining population, which suggests that population pressure and unchecked urban growth negatively impact land-carrying capacity. Sustainable management measures, such as prudent urban spatial planning, protection of green areas, and appropriate infrastructure development, must be implemented.

MAPPING THE LEVEL OF TSUNAMI HAZARD FOR DETERMINING SHELTER POINTS AND EVACUATION ROUTES AS AN EFFORT TO MITIGATE THE MEGATHRUST THREAT IN TASIKMALAYA REGENCY

Ade Novit Valgunadi — Sun, 30 Jun 2024 00:00:00 +0700

The threat of megathrust, which has the potential to cause a tsunami with waves as high as 34 meters on the coast of South Java, is undoubtedly worrying and must be mitigated as best as possible. This research aims to map the tsunami hazard with locations in Tasikmalaya Regency. The method used in this research is remote sensing and geographic information systems with quantitative descriptive analysis techniques. The data used are land use, distance from the coastline, distance from the river line, slope, and land elevation. The results of this research show that the coast of Tasikmalaya Regency, based on five parameters, namely elevation, slope, distance from the beach, distance from the river, and land use, has a high level of danger and for disaster mitigation ten temporary shelter points have been produced which are distributed along the coast of Tasikmalaya Regency. This research also produces an evacuation route to the temporary shelter point created, and an estimated road 1.8 km from the temporary shelter can be reached in 20 minutes on foot.

ADEQUACY OF GREEN OPEN SPACE TO REDUCE CARBON DIOXIDE (CO2) AT UNESA CAMPUS JL. KETINTANG, SURABAYA, INDONESIA

Muzayanah Muzayanah, Eko Budiyanto, Nugroho Hari Purnomo, Bambang Hariyanto — Sun, 30 Jun 2024 00:00:00 +0700

Academic activity at the Unesa Ketintang Campus Surabaya Indonesia, to some extent, contributed to the increase of CO₂ concentration in Surabaya City. The increase in CO₂ concentration can be balanced by green open space. This study aims to determine the adequacy of green open space in Unesa Ketintang Street Campus in reducing CO₂ in ambient air. The analysis unit uses a box model. The observation was carried out for six days in July-August 2021. The adequacy of green open space uses the CO₂ reduction value (Net_CO₂-Con), an indicator of reducing CO₂ concentrations. Net_CO₂-Con value is the cumulative concentration of CO₂ in the surrounding air for 24 hours. The study results show that from 7 observation points, the average CO₂ concentration ranges from 417 – 425 ppmV. The CO₂ concentration reduction value (Net_CO₂-Con) ranges from -19.46 to -87.69 ppmV. The minus sign (-) on the reduction value indicates that the green open space on the Unesa Campus is sufficient to reduce the CO₂ concentration in the ambient air.

PROGRESS AND RECENT RESEARCH OF TRANSPORTATION MODES IN INDONESIA: A SYSTEMATIC LITERATURE REVIEW

Sun, 30 Jun 2024 00:00:00 +0700

One of the main topics in the discussion of transportation geography is the mode of transportation. With its essential position, transportation modes have long received attention in various transportation geography studies. This paper presents information on the progress and trends of research topics on transportation modes with a geographical approach. This paper is a systematic literature review organized using the PRISMA approach. Search keywords were determined using the PICO method. The reviewed manuscripts were obtained from the Scopus database using the criteria of journal articles and research results, and they were in English. Two hundred seventy-four documents were collected since 1983, with peak productivity in 2020. One hundred ninety-nine articles were selected through the extraction process and continued with the review. In summary, this study offers new insights into the development trend of transportation mode studies in Indonesia.

LANDSLIDE RISK ANALYSIS IN KELING DISTRICT, JEPARA REGENCY, JAWA TENGAH PROVINCE, INDONESIA

Fakhryza Nabila Hamida, Hasti Widyasamratri, Hermin Poedjiastoeti — Sun, 30 Jun 2024 00:00:00 +0700

Keling District, Jepara Regency conducted a landslide risk analysis to determine the area's susceptibility and develop workable mitigation solutions. The analytical procedure includes threat identification, vulnerability and capacity evaluation, and methodology-based risk determination. The data used were topography, soil and rock types, joints and faults, rainfall, land use, and the frequency of disasters. Landslide-prone areas were mapped, and contributing factors were evaluated through the application of the VCA (Vulnerability Capacity Analysis) matrix multiplication approach. The findings demonstrate that population growth, deforestation, clearance of additional land, excessive rainfall, erosion-prone soil and rock conditions, and uncontrolled human activities contribute to the likelihood of landslides in Keling District. Building landslide infrastructure, raising public awareness, and closely monitoring changes in land use are all advised mitigating techniques. This strategy's implementation is anticipated to lower the likelihood of landslides and improve readiness for potential natural disasters.

ANALYSIS OF RICE FIELD SOIL FERTILITY IN COASTAL GEOGRAPHICAL AREAS: A CASE STUDY OF SITUBONDO DISTRICT, JAWA TIMUR PROVINCE, INDONESIA

sukron romadhona, Josi Ali Arifandi — Sun, 30 Jun 2024 00:00:00 +0700

Soil fertility is a key factor in agricultural success, especially in rice fields, which are the main source of rice production. The research results showed significant variations in the physical and chemical properties of soil in the rice fields, which were the focus of the research. P2O5 for rice fields in Situbondo district is in the range of values from 19.34 me/100g to 142.29 me/100g, dominated by very high status. The distribution of K2O in the rice fields of Situbondo district is in the range of values from 16.95 me/100g to 395.99 me/100g, including low to very high status. The distribution of K2O is dominated by very high states. The distribution of organic C in rice field soil in Situbondo district is in the range of 0.93% to 6.54%. The organic C content is dominated by medium status. The KTK of Situbondo Regency is in the range of values from 10.18 me/100g to 48.23 me/100g. The KTK value is dominated by high status. Base saturation in the study area is classified as low to high, ranging from 19.43% - 78.89% and is dominated by status.