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INDONESIA
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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KNOWLEDGE AND PRACTICE ON PEST MANAGEMENT OF ETHNIC POTATO FARMERS IN SOUTHERN SHAN STATE, MYANMAR Aung, Pyae Pa Pa; Visetnoi, Supawan
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 6, No. 2
Publisher : UI Scholars Hub

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Potato is cultivated as the main tuber crop which is essential for ethnic farmers’ household income in Southern Shan State, Myanmar. Most ethnic farmers use chemicals widely to enhance crop yield and reduce pests. Overuse and misuse of pesticides could lead to a series of health impacts and environmental issues. The main aim of the study is to explore farmers’ current practices and knowledge level on pesticides in potato production. The participants of 100 farmers were chosen from each village with a cluster and purposive sampling technique using structured questionnaires to collect the data from a village in Kalaw Township. The finding showed that 72% of farmers use only chemical pesticides due to more effective and received training from pesticide companies’ staff and whereas only 3% received information from governmental officials. Reasons to use alternative methods, types of alternative methods and where farmers learned alternative methods were significantly related to pest control methods. Farm experience in farmers was not associated with pest control methods. This study will help extension workers to provide appropriate training and improve farmers’ knowledge of pest control management for the highland crop.
ASSESSMENT OF SUSTAINABLE TOURISM USING SOCIAL, ECONOMIC, AND ENVIRONMENTAL INDICATORS: CASES STUDY OF BANJARNEGARA, INDONESIA Sukmawati, Enra Riesti; Niyommaneerat, Wilailuk; Sakcharoen, Thammananya
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 6, No. 2
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Sustainable tourism requires valuable and useful resources, balances people's social, economic, and environmental goals, and realizes the carrying capacity of resources. This paper examines the tourism situation in the City of Banjarnegara, Central Java, Indonesia, using the three pillars of sustainable tourism: Social, Economic and Environmental. This study aims to examine sustainable tourism in Banjarnegara by following indicators from the Global Council on Sustainable Tourism Destinations Criteria (GSTC-D) and publications in international journals using the keyword "indicator of sustainable tourism". The sampling technique used stakeholder analysis with purposive sampling by 21 expert respondents who have been involved in the world of tourism for approximately five years. Analysis of conditions in Banjarnegara compared with available indicators, then data validation by key stakeholder interviewing and respondents. The assessment of the indicators was followed by a questionnaire based on indicators; the measurement of indicators was carried out using a 5-point Likert scale by stakeholders to assess opinions from strongly disagree to strongly agree to obtain results where sustainable tourism indicators can become important indicators in Banjarnegara. In the end, the most important social, economic, and environmental indicators produced in this study can be used as sustainable tourism standards in Banjarnegara tourism development. Based on the assessment of social indicator questionnaire data, there are four social indicators in the strongly agree category with Total percentage of 89.67%. Based on the assessment of economic indicator questionnaire data, there are six economic indicators in the strongly agree category with total percentage of 87.94 %. Based on the assessment of environmental indicator questionnaire data, there are five economic indicators in the strongly agree category with total percentage of 86.27%.
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
Publisher : UI Scholars Hub

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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.
LANDSLIDE SUSCEPTIBILITY ANALYSIS IN KABANDUNGAN DISTRICT AND SALAK GEOTHERMAL FIELD, WEST JAVA Misbahudin, Misbahudin
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 4, No. 2
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Landslide hazards can be caused by several factors such as lithology, land cover, rainfall, slope, curvature, aspect, distance from river and road. In this study, a landslide susceptibility mapping was carried out using a Geographical Information System (GIS) in Kabandungan District and Salak Geothermal Field, West Java. The data used consisted of an inventory of points and landslide areas totalling 247 using a visual collection of Google Earth imagery. The Weight of Evidence (WoE) model is used to select parameters that cause landslides and to produce landslide vulnerability maps. The results of modeling indicate a positive relationship between selective factors for the occurrence of landslides, with Area Under Curve value of 0.89359; 0.76395; 0.75277; 0.73280 and 0.69093 respectively. Landslide susceptibility maps are made by adding up the WoE values for all the most influential parameters. Higher total WoE value is indicating a higher probability of landslide. Landslide susceptibility maps can be used as an effort to prevent potential hazards or mitigate landslides. In addition, this map can also be used furtherly for spatial planning and engineering activities
WILAYAH INTENSITAS TINGGI SEBARAN HOTSPOTS DI PROVINSI RIAU TAHUN 2005 - 2014 Harahap, Rina M
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 2, No. 1
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Wilayah intensitas tinggi sebaran hotspots di Provinsi Riau tahun 2005 - 2014
PERSEBARAN TERUMBU KARANG DI WILAYAH PERAIRAN KARAWANG Fadhli, Rafdi; Pin, Tjiong Giok
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 2, No. 1
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Coral reefs are one of the most important marine resource potentials in Indonesia. The purpose of this research is to analyze the influence of physical characteristics of waters on the distribution of coral reefs in the Waters of Karawang region in 2001, 2010 and 2017. The method used is field survey and image data processing using the Lyzenga algorithm to determine the distribution of coral reefs in the Waters of Karawang. The results showed that the physical characteristics of these waters affected the distribution of coral reefs in the long term which in the year 2001 - 2017, because when the physical characteristics of the waters are not in accordance with the quality standards, coral reefs do not die immediately but will undergo various processes until it dies. Temperature measurement does not affect the spread of coral reefs in the Karawang region because at temperatures that are suitable for air quality for coral reefs, coral reefs cannot live in the Karawang region. Whereas in high salinity beyond the standard threshold value, coral reefs cannot grow and develop. In ocean surface currents, live coral reefs are ready to have a pattern that is in the same direction as the average direction of ocean currents in the initial time.
MAPPING LAND COVER BASED ON TIME SERIES SYNTHETIC APERTURE RADAR (SAR) DATA IN KLATEN, INDONESIA Fikriyah, Vidya Nahdiyatul
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 3, No. 2
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Information on the existing land cover is important for land management and planning because it can represent the intensity, location, and pattern of human activities. However, mapping land cover in tropical regions is not easy when using optical remote sensing due to the scarcity of cloud-free images. Therefore, the objective of this study is to map the land cover in Klaten Regency using a time-series Sentinel-1 data. Sentinel-1 data is one of remote sensing images with Synthetic Aperture Radar (SAR) system which is well known by its capability of cloud penetration and allweather observation. A time-series Sentinel-1 data of both polarisations, VV and VH were automatically classified using an unsupervised classification technique, ISODATA. The results show that the land cover classifications obtained overall accuracies of 79.26% and 73.79% for VV and VH respectively. It is also found that Klaten is still dominated by the vegetated land (agriculture and non-agricultural land). These results suggest the opportunity of mapping land cover using SAR multi temporal data
EKSTRAKSI DIGITAL SURFACE MODEL (DSM) DARI DATA UNMANNED AERIAL VEHICLE (UAV) BERBASIS POINT CLOUD Laksana, Indra; Suharyadi, R; Hadi, M Pramono
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 3, No. 2
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Data acquisition using unmanned aircraft is increasingly being done. This study models elevation data from field measurements using unmanned aircraft. The purpose of this study: (1) to test the ability of unmanned aircraft to acquire elevation data, and (2) to compare elevation data if added point cloud data and bathymetry measurement data. The processing method using point cloud data is done by first matching key points. Matching key points links all aerial photography results to forming a single unit area that has been photographed. Next, a tie point is carried out in the area formed from matching key points. Tie points function as data correction when unmanned aircraft take data. Corrected aerial photos are then processed to obtain point cloud data. Point cloud is useful as orthophoto compiler data and Digital Surface Model (DSM) data. Point cloud data processing to produce DSM is done using Pix4D and Agisoft photoscan software. The results obtained showed that there was an increase in DSM capabilities when point cloud data was added to the tie point data and bathymetry measurement data. So, it can be concluded that data acquisition using unmanned aircraft is able to produce reliable data. Besides being reliable, data acquisition with unmanned aircraft is cheaper compared to data acquisition with aerial photography.
SPATIAL ANALYSIS OF COASTLINE CHANGE BY REMOTE SENSING IN THE NORTH COAST OF KARAWANG REGENCY Pasaribu, Roberto; H, Firman Agus; Soeprijadi, Liliek
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 3, No. 2
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The existence of the coast in the northern part of Karawang Regency is very worrying. Seawater that was far up to tens of meters from the side of the road, is now on the lip of the road, even some parts of the road are cut off due to abrasion of seawater. Some villages were affected by abrasion erosion. One of the effects of damage due to abrasion and sedimentation is the occurrence of shoreline changes. This change in coastline will affect people's lives and spatial planning for the development of the area. For this reason, this study aims to determine the extent and rate of shoreline changes that occurred on the coast of Karawang Regency in the periods of 1989, 1995, 2001, 2005, 2009, 2016, and 2018. The shoreline data was obtained from the extraction of Landsat 3 MSS, Landsat 5 TM, Landsat 7 ETM +, and Landsat 8 OLI-TIRS after the NDWI process was previously carried out. While the rate of change is calculated at 6 sample point locations scattered along the northern coast of Karawang Regency. The results showed that the largest area damaged by abrasion occurred in Sedari Village covering an area of 166.802 hectares, and the area formed by the largest sedimentation occurred in Muara Cilamaya Village at 276,318 hectares. Meanwhile, the fastest rate of shoreline change due to abrasion occurred in Sukajaya Village at 10 meters /year, while the slowest in Sedari Village at 3.77 meters / year. The fastest sedimentation process in Muara Cimalaya Village is 4.5 meters / year, while the late one in Tanjung Pakis Village is 3.09 meters / year.
SEASONAL DISTRIBUTION OF MICROBIAL BIOMASS CARBON AND SOME HEAVY METALS AROUND THE INDUSTRIAL AREA OF KANO METROPOLIS, NORTHWESTERN-NIGERIA Mohammed, Mansur Abdul; Buba, Luka Fitto
Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments) Vol. 4, No. 2
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The accumulation of toxic heavy metals in excessive quantities has a detrimental effect on soil quality which interferes with key biochemical processes in soils. It is very imperative to explore soil microbial activities concerning to environmental conditions for sustainable soil management. The study aimed to assess the seasonal distribution of soil microbial biomass carbon (MBC), some heavy metals and pH, and their relationship in the soil ecosystem. Field investigation and laboratory analysis were the main methods adopted as sources of generating data and analyses. Ten soil samples were collected using composite sampling techniques on seasonal bases and then analyzed in the laboratory. The results were subjected to statistical analyses using t-test and the Analysis of Variance (ANOVA) at ��<0.05. Pearson’s correlation andregression analysis was analyzed to determine the relationship among the variable at P<0.05. The results show that locations with higher values of MBC corresponded with locations with high Cr, Cd, and Pb. High values of Cr, Cd, and Pb were observed in the dry season. On the other hand, in the wet season, rainfall enthused dilution, leaching, and runoff of Cr, Cd, and Pb and then removed from subsurface. High MBC in the wet season is due to favorable conditions for the microbial population and rapid mineralization due to high moisture and temperature than the dry season where there are low moisture and temperature. The analysis revealed that MBC was positively related to Cr, Pb, and was negatively related to Cd. However, the variation of MBC was explained by Cr, Cd, and Pb by 64% and 52% for dry and wet season respectively. It was concluded that the toxicity of heavy metals in soil depends on the pH level and therefore, determination of MBC, Cr, Cd, Pb, pH, and temperature of soil reflect the microbial activities in the soil and could be considered as soil quality indicators.

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