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INDONESIA
Indonesian Journal of Geography
Published by Universitas Gadjah Mada
ISSN : 00249521     EISSN : 23549114     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Indonesian Journal of Geography ISSN 2354-9114 (online), ISSN 0024-9521 (print) is an international journal of Geography published by the Faculty of Geography, Universitas Gadjah Mada in collaboration with The Indonesian Geographers Association. Our scope of publications includes physical geography, human geography, regional planning and development, cartography, remote sensing, and geographic information system. IJG publishes its issues three times a year in April, August, and December.
Arjuna Subject : -
Articles 633 Documents
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Geomorphological mapping of the San Lorenzo area Sant'arcangelo region Southern Italy Muh Aris Marfai
Indonesian Journal of Geography Vol 37, No 2 (2005): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2229

Abstract

The study area is located in the Sant'arcangelo region, Southern Italy. The area was developed from late Pliocene to middle Pleistocene in the southern part of the Apenines chain. It has also been defined as a piggy back basin filled with siliciclastic deposits, controlled by sedimentary tectonic activity.This article aims to identify the geological condition and generating geomorphological map for San Lorenzo area using aerial photo (scale 1:15000) and Panchromatic SPOT image (Scale 1:66000). Image interpretation was also done to identify morphological, structural and processes.The Sant'Arcangelo region is composed of 4 cycles both marine and continental in origin, all deposited on different environments: The Caliandro, Agri, San Lorenzo and Sauro cycles. The study area consists of Sauro and San Lorenzo Cycle. Sauro Cycle is Comprises of three heterotrophic units deposited in sintectonic discordance over the Agri cycle. San Lorenzo Cycle lying in unconformity over the precedent cycles is consisting of three units, namely conglomerates on the base part as well as on the top part of the sequence, and silty clays in the intermediate part. They form a syncline structure which ax has a NW-SE direction. The main structural features are represented by the San Lorenzo syncline and the Alianello fault. The San Lorenzo area has three principal origins: alluvial, denudation, and structural. Due to the geological-tectonic complexity, the structural landform is normally found as structural denudational landform. San Lorenzo area comprises of 41 landform units, namely 3 units of alluvial landforni, 26 units of denudational landform and 11 units of structural denudational landform.
Hydrological Implication of Bamboo And Mixed Garden In The upper Citarum Watershed Chay Asdak
Indonesian Journal of Geography Vol 38, No 1 (2006): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2231

Abstract

The assessment of important factors affecting runoff and erosion was carried out by collecting runoff and soil loss from four runoff/erosion plots. The runoff/erosion plots were set up in sloping areas of about 40% slope in the upper area of Ciwidey sub-watershed (upper Citarum watershed), West Java. The plots (6 x 10 m) were established in the following four sets of conditions: bamboo plantation, mixed garden, small shrub, and agricultural field with different species and stand structures. After 20 rainfall events, a treatment in the form of removing undergrowth and litter were applied to bamboo and mixed garden plots. The result of this before and after treatment are the following: runoff from bamboo plantation was increased from 0.40 to 1.02 litre/m2 and erosion was increased from 1.47 to 11.65 gr/m2. While the runoff and erosion in mixed garden were increased from 0.36 to 1.65 litre/m2 and from 1.36 to 10.88 65 gr/m2, respectively. When this compared to the runoff and soil loss in the agricultural plot, the soil erosion is much higher, 50.5 gr/m2 (about 50 times higher). Stand/canopy structure appeared to be the important factors that determine the magnitude of soil erosion. While the role of these factors were less significant compared to rainfall in determining the magnitude of runoff.
Ten Year Groundwater Simulation in Merapi Aquifer, Sleman, DIY, Indonesia Visi Asriningtyas; Doni Prakasa Eka Putra
Indonesian Journal of Geography Vol 38, No 1 (2006): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2232

Abstract

Simulation of groundwater withdrawal has been conducted with a groundwater modeling system (GMS) version 3.1 software at a regional scale. The simulation was conducted from ten year groundwater withdrawal data in Merapi Aquifer, DIY, Indonesia, for two assumed scenarios, with an emphasis in Sleman area. The result for the ten year groundwater simulation was conducted spatially distributed in the Merapi Aquifer after the steady state simulation was reached. With two different types of transient simulations, the total withdrawal of 28,968 m3/day for the whole Merapi Aquifer is still acceptable with caution, as long as the . recharge is not decreasing. However, less withdrawal as the existing withdrawal condition is recommended until local site investigation is sufficient to avoid the danger of overdraft.
Long Term Rainfall Trend of The Brantas Catchment Area, East Java Edvin Aldrian; Yudha Setiawan Djamil
Indonesian Journal of Geography Vol 38, No 1 (2006): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2233

Abstract

Spatial and temporal rainfall analyses of the Brantas Catchment Area from 1955 to 2002 based on 40 daily rainfall stations has been performed. To identify the climate pattern for the last five decades, we used the Empirical Orthogonal Function (EOF) followed by the Fast Fourier Transform. By using EOF, we found the monsoonal pattern as the most dominant, which explains about 72% of all variances. The interannual pattern shows a negative trend of the monsoonal strength. From the monthly isohyets for each decade, the rainfall amount appears to decrease significantly during the last five decades, indicated by wider low rainfall amount areas and the orographic effect is detected, indicated by always greater amount in highlands. From rainfall data in mountain and coastal areas, dry periods had been increasing, mainly in lowlands. Thus, the continued imbalance of the dry and wet period is one cause of the monsoonal strength decrease during the last five decades.
Technology Transfer In Rural Industries of Thailand: The Case of Dessert And Palm Tree Industries Apisek Pansuwan; Supet Jirakajohnkool
Indonesian Journal of Geography Vol 38, No 1 (2006): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2234

Abstract

In last decade, the small industrial sector has increasingly received attention from Thai policy makers. This study investigates the relationship between small industries and community in rural area in term of technology transfer. In the research area, knowledge and experience gathered from workplace as an employee and family businesses are the core resources to establish and run busineSses. Technically, technology transfer is divided into 2 characteristics; intra-enterprise and inter-enterprise. Intra-enterprise technology transfer comes from employers to employees, emphasizing production development. Beside, technology transfer of inter-enterprise has two directions. Firstly, direction points from the entrepreneur to material suppliers aiming to secure raw material quality. Secondly direction points from consumers to the entrepreneur aiming to put a great emphasis on product development, quality control and management.
Geomorphological Approach for Regional Zoning In The Merapi Volcanic Area Langgeng Wahyu Santosa; Sutikno Sutikno
Indonesian Journal of Geography Vol 38, No 1 (2006): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2235

Abstract

Geomorphologial approach can be used as the basic for identifying and analyzing the natural resources potentials, especially in volcanic landscape. Based on its geomorphology, Merapi volcanic landscape can be divided into 5 morphological units, i.e.: volcanic cone, volcanic slope, volcanic foot, volcanic foot plain, and fluvio-volcanic plain. Each of these morphological units has specific characteristic and natural resources potential. Based on the condition of geomorphology, the regional zoning can be compiled to support the land use planning and to maintain the conservation of environmental function in the Merapi Volcanic area.
Qualitative Analysis Of The San Lorenzo Landslide In The Sant' Arcangelo Region Southern Italy Muh Aris Marfai; Graciela Peters Guarin; Fransisco De La Caridad Viera Cepero
Indonesian Journal of Geography Vol 38, No 1 (2006): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2236

Abstract

This study is applying qualitative analysis based on the multitemporal evidence for generating the expected-landslide hazard map. The study was carried out in San Lorenzo area, Sant' Arcangelo, Southern Italy. The main objectives of this study are: 1) to identify and generate old-landslide map year 1976 and recent-landslide map year 2002, and 2) to generate the expected hazard map based on multitemporal evidence. Interpretation of the aerial photographs has been used to determine the type of landslide and landslide activity in 1976, and fieldwork has been done to check type, of landslide and to determine the landslide activity in 2002. The comparison between activity 1976 and 2002 have been done in order to generate the expected hazard map. Most of the active landslide in 1976 and 2002 are complex and rockfalls type and only small part are spread; slide and flow. Some active landslides in 1976 are still active in 2002 and even inactive landslides in 1976 become active in 2002 and leading to the extended high and moderate hazard area.
Social Facilities Provision And Rural Development Relationships On The Jos Plateau-Nigeria Bala Dogo
Indonesian Journal of Geography Vol 38, No 1 (2006): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2237

Abstract

The study has measured the levels of social facilities provision in the rural areas of the Jos Plateau Region of Nigeria. Over 60 dependent and independent variables were employed in determining the rural development index (RUDEVI). Social sectors covered include health care, educational, water supply, rural roads, places of worship and other general welfare infrastructure and services. The various levels of rural development indices of the 86 communities studied were subjected to analysis of variances (ANOVA), correlation and regression using population size as the focal variable. It was found that population is not a major factor used in the sitting of social facilities in the rural areas of Jos Plateau, which is not supposed to be the case.
Biocultural Diversity: An Aemerging Concept in The 21 Century Anupriya Chatterjee
Indonesian Journal of Geography Vol 39, No 2 (2007): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2240

Abstract

The emerging concern in the last few decades for conserving 'diversity' is an impetus to conserve not only the whole spectmm of biota i.e. the total sum ofgenes, species and ecosystems but also indigenous culture, traditions, spiritual beliefs and values. This phenomenon is named Biocultural Diversity, which is a synthesis of both Biological Diversity (biodiversity) and Cultural Diversity. 1980 's was considered the decade of biodiversity, 1990's that of cultural diversity and 2000's a new field of Bio-Cultural diversity. In the first half of this paper the. interrelationship and interdependence between biodiversity and cultural diversity is discussed and in the second half how the modern global economic system is engulfing this diversity of life, knowledge, cultural heritage and practices areanalysed The global distribution and patterns of biodiversity coincide with that of cultural diversity, therefore if languages and cultures disappear due to global pressure of homogenization we also lose knowledge about our environment leadingto biodiversity depletion~ It is quite noticeable that the countries with peoplespeaking largest number of languages; and countries with greatest number of traditional livelihoods and indigenous communities obviously have the greatest biological diversity. Thus only a sustainable approach can bridge the gap between modern visions of human beings and traditional cultural aspirations thereby ensuring holistic development.
Misconception Of Run-Up Definition And Its Implication To Tsunami Risk Assessment A Case Study In Pacitan Coastal Area, Indonesia Djati Mardiatno; Suanrto Sunarto; Lies Rahayu W.F; Johann Stotter
Indonesian Journal of Geography Vol 39, No 2 (2007): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2241

Abstract

This article aims to build the similar understanding of run-up concept and to review the "map of t,'}iinami risk analysis in Pacitan" released by Balai Pengkajian Dinamika Pantai (BPDP)-BPPT Indonesia. We also propose similar understanding of risk definition related to the natural hazards, such as tsunami. The investigation used comparison method between 2 maps, i.e. tsunami risk map by BPDP and our tsunami risk map. Based on the comparison result, we found a misconception of rim-up in the tsunami risk map produced by BPDP. There is no differentiation between run-up and water-height over the land. It should be revised to avoid it from the incorrect rim-up definition. We also found if it was also mentioned as a "map of t.\imami risk analysis" while the analysis result was not performed in that map. Therefore, it is necessGlY to understand the run-up concept and risk concept first prior to map those phenomena.

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