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Jurnal Geografi LIngkungan Tropik (Journal of Geography of Tropical Environments)
Published by Universitas Indonesia
ISSN : -     EISSN : 25979949     DOI : 10.7454/jglitrop
Core Subject : Science,
Earth & Planetary Sciences
JGLITROP is a scientific journal published by Department of Geography at the University of Indonesia focuses on the application of Geography in tropical environment. The focus of the issues consist of: Physical Geography Human Geography Remote Sensing Geographic Information System Environmental Sciences Multidiscipline/Others
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 70 Documents
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DISTRIBUTION OF FIRE INCIDENTS AND FIRE FIGHTING SERVICES IN DKI JAKARTA PROVINCE Zakaria, Muhammad; Tambunan, Mangapul P.; Setiadi, Hafid
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 7, No. 1
Publisher : UI Scholars Hub

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Abstract

The rapid development of the city results in the risk of disasters, one of which is a fire disaster. Fire incidents have increased from time to time, this occurs in line with the continued increase in population and density of settlements. Fire can cause material loss or loss of life. Efforts to minimize fire disasters can be carried out by providing fire fighting service facilities whose numbers can reach all areas. The purpose of this study is to determine the distribution of fire incidents and to determine the distribution of fire services in DKI Jakarta Province. The type of research used in this research is ex-post facto research which then the results are analyzed by quantitative description. The location of this research is DKI Jakarta Province. The variables in this study are fire incidents and fire fighting services in the 2018-2020 range. The source of data in this study is data on fire incidents and fire fighting services obtained from related agencies, namely the DKI Jakarta Fire Department. Data analysis techniques are density analysis and service area analysis. The results showed that the distribution of fire incidents occurred in all areas of DKI Jakarta, with the highest distribution in the East Jakarta area. The spread of fires occurred in almost every residential or residential area. The distribution of fire services in DKI Jakarta is not available in every region, especially at the sub-district and urban village levels. Keywords: Fire, fire fighter, fire sector, fire station, housing, settlement
COMPARISON RESULT FOR THE PREDICTION ACCURACY OF SEAWATER INTRUSION BASED ON DIFFERENT SAMPLE SIZES AND LAND COVER CHARACTERISTICS USING INVERSE DISTANCE WEIGHTING AND KRIGING Suastini, Ni Made Mega Melliana; Ghazali, Mochammad Firman; Dermawan, Ananda; Salsabila, Choirunnisa; Zahra, Lauditta; Aulia, Mila
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 7, No. 1
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Abstract

This study aims to determine seawater intrusion (SWI) based on sample sizes' contribution to land cover characteristics' accuracy using inverse distance weighting (IDW) and Kriging. The SWI is explained based on the extracted salt concentration from the dissolved soil. Here, this study used 24 samples of salt concentration, namely salinity samples collected by systematic random sampling and divided into two groups: ground control points (GCP) and independent checkpoints (ICP). Two interpolation methods, namely IDW and Kriging, are used to make a spatial prediction of the SWI, and their results are evaluated based on their accuracy by observing the root mean square error (RMSE). Based on the results of the best interpolation method using various sample size scenarios considering the knowledge to consider sufficient samples for SWI estimation, namely, the Kriging method produces the lowest RMSE value of 0.011 in model 1 and the highest RMSE value of 0.025 in model 3. The kriging method does not work well if the sample number is small. Compared to IDW, which has the highest RMSE value of 0.028 in model 3 and the lowest RMSE value of 0.13, respectively, in model 1. At the same time, the IDW method can work well even though the sample size is small. However, both interpolation methods are suitable for detecting seawater intrusion in Way Urang Village. In this study also, land cover affects the dynamics of salt concentration so that open land may have a higher salinity value than shrubs and vegetation with low salinity values causing the soil in Way Urang Village not to be polluted by seawater intrusion because the salinity concentration does not exceed the limit.
WHAT ARE THE CONDITIONS FOR GENERATING POSITIVE IMPACTS ON THE LIVELIHOOD OF PES PARTICIPANTS IN IMPLEMENTING THE PES SCHEME? A COMPARISON BETWEEN PES FOR WATERSHEDS IN INDONESIA AND TANZANIA Hashilah, Fathia; Waluyo, Septian Agung
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 6, No. 1
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Abstract

Many scholars perceive that Payment for Environmental Services (PES) will automatically benefit environmental conditions and the livelihood of the environmental services (ES) providers. Some contextual conditions might create a positive impact on the livelihood of ES providers. This paper aims to obtain the contextual needs of PES implementation that positively affect the livelihood of ES providers. Comparing two studies of the PES scheme in Indonesia and Tanzania, there are four general conditions for achieving benefits for ES providers from implementing PES. First, the PES scheme should be well-designed. Second, potential PES participants need to have a solid institutional condition. Third, the intermediaries of the PES scheme should be skilful and knowledgeable. Fourth, the land right should be well recognized, whether individual, collective or government-owned.
Spatial Pattern Analysis of Agricultural Drought in the Jatiluhur Reservoir’s Irrigation Area Using Normalized Drought Index (NDDI) MODIS Satellite Image Zubair, Ahmad; Sakina, N C; Khairunnisa, N; Siddiq, Ayyasy; Rustanto, Andry; Zulkarnain, Faris; Dimyati, Muhammad
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 6, No. 1
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Abstract

Agricultural drought occurs in various irrigation areas in Indonesia, one of which is the Jatiluhur Reservoir’s irrigation area. Agricultural drought in this area occurs due to several factors, including the natural phenomenon of climate anomalies which causes the length of the dry season, and also due to less optimal irrigation networks, damaged networks and other obstacles. But, not all agricultural land in the irrigated area experiences drought. Agricultural land affected by drought is important to know its spatial and temporal distribution to determine priority locations in drought disaster management, especially on agricultural land. Therefore, this study aims to examine the spatial pattern of agricultural drought in the irrigation area of the Jatiluhur Reservoir from 2000–2020. The index used in this study is the Normalized Difference Drought Index (NDDI). MODIS image version MOD13Q1 is used by dividing the dryness class into three classifications, namely dry (>0.5), rather dry (0-0.5), and normal (<0.5). The results showed that the most extensive drought in rice paddy fields occurred in 2015 with a dry index of 8574.19 Hectares. Meanwhile, agricultural drought in this area occurs on average from June to September, especially in the Jayalaksana Village and Setialaksana Village, Bungin Sub-District, Bekasi Regency. These two villages are affected by agricultural drought every single year. The spatial pattern of agricultural drought shows that it follows the pattern of the irrigation network. It is necessary to investigate the correlation between agricultural drought and irrigation network in the next research.
Assessment Site Attraction in Gunung Mas Agrotourism, Bogor Regency, West Java Fitriani, Sarah Putri; Manessa, Masita Dwi Mandini; Tambunan, Mangapul Parlindungan; Tambunan, Rudy Parluhutan
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 7, No. 1
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Gunung Mas Agrotourism is a sub-unit managed by PT Perkebunan Nusantara VIII (PTPN VIII) under the management of Agrotourism and is the largest contributor to PTPN VIII's revenue, which is 70% and most of it comes from the tourism sector. The facilities and activities offered by Gunung Mas Agrotourism also vary, from lodging, restaurants, tourist attractions, and supporting facilities to meet the tourists' needs. To find out the magnitude of tourist interest in tourist attractions, an analysis of the attractiveness of tourist attractions is needed. This study aims to assess tourist attractions based on tourist preferences as well as the availability and accessibility of facilities in the Gunung Mas Agrotourism area, Bogor Regency. The method used is a survey method with a quantitative approach with the Analytical Hierarchy Process (AHP). The results of this study show that horseback riding got the highest meanwhile ATV got the lowest value of attractiveness. It indicates that the easier accessibility as well as the higher number of facilities to a tourist attraction, the greater the value of attractiveness.
Changes in Chili Value Chain in Gunungkidul Regency Due to COVID-19 Pandemic Ramadhan, Muhammad Vitra; Sumadio, Widyawati
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 7, No. 1
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This study explored the changes in the chili value chain in Gunungkidul Regency due to the COVID-19 pandemic. This study used a qualitative approach by conducting in-depth interviews with chili farmers, collectors, traders, and buyers in Gunungkidul Regency. The research results show that the COVID-19 pandemic has affected all stages of the chili value chain in Gunungkidul Regency. The actors in the chili value chain in Gunungkidul Regency have successfully adapted to face disruptions due to the COVID-19 pandemic by using information technology to communicate between actors and obtain market price information. Before the pandemic, Gunungkidul Regency was one of the largest chili producers in the Special Region of Yogyakarta Province. However, due to the pandemic, chili production has decreased drastically with chili price volatility remaining. The COVID-19 pandemic has had a significant impact on the chili value chain in Gunungkidul Regency. Nevertheless, the actors in the chili value chain have successfully adapted to face disruptions due to the COVID-19 pandemic by using information technology.
ANALYZING LAND SUITABILITY FOR INDUSTRIAL AREAS IN PEKANBARU CITY USING THE SMCE METHOD AND GEOGRAPHICAL INFORMATION SYSTEMS Aisyah, Siti; Dimyati, Muhammad
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 7, No. 2
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Domestic industrial growth continues to increase in line with population growth and the development of new areas, both in the city center and on the outskirts of the city. The location of Riau Province, which is close to Malaysia and Singapore, makes it an attractive investment destination, supported by Riau's abundant natural resources. Pekanbaru City, as the capital of Riau Province, consisting of 12 regencies/cities, serves as the center of government and economy. Among the 27 integrated industrial estates, there are two locations in Riau Province determined by the central government in the 2020-2024 RPJMN, namely Tanjung Buton in Siak Regency and Tenayan Raya in Pekanbaru City. Therefore, it is necessary to analyze the suitability of the land for industrial areas in Pekanbaru City, ensuring compliance with the Pekanbaru City Spatial Plan, as well as provincial and national spatial plans. The method used is SMCE (Spatial Multi-Criteria Evaluation) and Geographic Information System, taking into account physical variables such as distance from roads, rivers, settlements, and slopes. The results of spatial data processing will be overlaid with the map of the Tenayan Industrial Area in the Pekanbaru City Spatial Planning.
Characteristic of Dual Polarization Sentinel-1 for Estimation of Seawater Intrusion on Kalianda Coast, South Lampung: A Preliminary Study Salsabila, Choirunnisa; Ghazali, Mochamad Firman; Dermawan, Ananda; Zahra, Lauditta; Melliana, Ni Made Mega; Aulia, Mila
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 7, No. 1
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Seawater intrusion can increase soil salinity, which occurs due to flooding, evaporation, and land cover changes in coastal areas. This research aims to map and observe the characteristics of seawater intrusion in Way Urang, Kalianda, South Lampung, using Dual-polarization of Sentinel-1 SAR imagery with VV, VH, VV+VH, and (VV+VH)/2 polarization. There were 28 samples used in this research which were divided into two types, GCP (ground control point) and ICP (independent check point). GCP samples are used to create a seawater intrusion estimation model using the regression method, while ICP samples are used to test the validation model using the RMSE method. The seawater intrusion estimation model created in this study had a good RMSE accuracy of 0.01 – 0.08. However, these results were not followed by a strong relationship between backscatter and estimated salinity value. This can be caused by high levels of soil moisture in the research area. Based on the salinity value estimation model, it shows that there is no seawater intrusion in the research area. Seawater intrusion can increase soil salinity, which occurs due to flooding, evaporation, and land cover changes in coastal areas. This research aims to map and observe the characteristics of seawater intrusion in Way Urang, Kalianda, South Lampung, using Dual-polarization of Sentinel-1 SAR imagery with VV, VH, VV+VH, and (VV+VH)/2 polarization. There were 28 samples used in this research which were divided into two types, GCP (ground control point) and ICP (independent check point). GCP samples are used to create a seawater intrusion estimation model using the regression method, while ICP samples are used to test the validation model using the RMSE method. The seawater intrusion estimation model created in this study had a good RMSE accuracy of 0.01 – 0.08. However, these results were not followed by a strong relationship between backscatter and salinity value. This can be caused by high levels of soil moisture in the research area. Based on the salinity value estimation model, it shows that there is no seawater intrusion in the research area.
SPATIAL ANALYSIS OF LAND USE SUITABILITY AGAINST REGIONAL SPATIAL PLANNING AT THE FOOD ESTATE PLANNING SITE IN PULANG PISAU REGENCY, CENTRAL KALIMANTAN Budianto, Budianto; Setiadi, Hafid; Dimyati, Muhammad; Supriatna, Supriatna
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 6, No. 1
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The limited space on land increases the important of spatial planning that is transparent, accountable and effective, which involves multi-stakeholders in its conception. Such planning is intended to create spatial arrangement that supports security, productivities and sustainability. In the attempt to secure food supply in the future, the government of Indonesia has initiated Food Estate program in 2020 which occupy some vast areas. By occupying large area, careful spatial planning and its proper implementation is highly important for a successful program. This study is a survey to the land use and land utilization in one of the planned areas for food estate project in Pulang Pisau Regency, Central Kalimantan, and evaluate their suitability with the designated spatial planning. There is 39.598,95 Ha or 61,24 % of the total land use that suitable with the spatial planning and 25.064,75 Ha or 38,76 % that is not suitable. It is expected that as the food estate program is rolling, the suitability percentage will increase and lead to the successful production of food supplies.
SPATIAL PATTERN OF URBAN HEAT SIGNATURE AND ITS IMPACT ON PAMOYANAN VILLAGE, CIANJUR DISTRICT Sunukanto, V S; Semedi, Jarot Mulyo; Ash Shidiq, Iqbal Putut; Kamarudin, Norizah; Wibowo, Adi
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 6, No. 2
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According to the World Bank's Climate Change Knowledge Portal in 2020, the increase in annual temperature in Indonesia, which tends to rise by 0.3°C, is consistent with the Urban Heat phenomenon. Population growth and shifting land cover contribute to annual temperature fluctuations by reducing the amount of vegetated land. The increase in temperature in the urban environment has particular impacts on the community in terms of environmental changes. The term "Urban Heat Signature" refers to land cover in a localized urban environment with natural consequences due to solar radiation and high-low temperature values. This study was conducted in Pamoyanan Village, Cianjur District, by analyzing Land Surface Temperature images derived from Landsat OLI TIRS images, collecting air temperature measurements, and spreading field surveys about human perceptions. According to the processing results, the maximum temperature is greater than 30°C. The air temperature ranges from a maximum of 34.8°C in open land to a minimum of 27.4°C in medium vegetation. If this is the case, then the perception of human temperature significantly impacts comfort and the growing tendency for people to sweat in society.

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