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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 6 Documents
 1 
Search results for , issue "Vol 26, No 28 (1994): Indonesian Journal of Geography" : 6 Documents clear
Some Notes on Groundwater As A Domestic Water Supply of The Yogyakarta Municipality Sudarmadji .
Indonesian Journal of Geography Vol 26, No 28 (1994): 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.2204

Abstract

Water supply in Yogyakarta municipality is mainly originated from two main sources, the pipe water and groundwater. The pipe water which is operated by the local drinking water authority does not suffice for the water demand of the people in the city. Tire second source is groundwater, which is used by most people in the city by traditional system. The aquifer of the Yogyakarta which consists of volcanic materials erupted by Merapi volcano is fairly good, however the expansion of the city area toward the northern and north eastern area may reduce groundwater recharge. The rapid growth of population and other city facilities such as hotels may cause groundwater supply to decline. Groundwater quality in certain area may subject to pollution by domestic wastes, assigned by the high content of chemical substances such as iron and sulphate, besides high content of coliform bacteria, and nitrite. Heavy metals were undetected in the groundwater of the area
The Use of Spot Image for Mangrove Inventory in Cimanuk Delta West Java, Indonesia Hartono .
Indonesian Journal of Geography Vol 26, No 28 (1994): 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.2205

Abstract

This study deals with an application of SPOT satellite data for mangrove forest inventory in Cimauuk Delta West Java (Indonesia). Mangrove of the area (7100 Ha) has been gradually decreasing by human pressure especially for fisheries purposes. In fact, mangrove here is a result of afforestation since1960, with Rhizophora mucronata and R. apiculata as main planted species. Other species are Lunmitzera racemosa, Excoecaria agallocha, Bruguiera gymnorhiza and Avicennia which grow naturally. SPOT data were digitally analysed using Didactim software. A color composite image was analysed. A barycentric supervised classification and textural analysis were applie.d. As an intermediate data, infrared color aerial photographs at 1130,000 (1981) were interpreted manually.At least two mangrove types of mangrove could be identified from the SPOT image. Dense mangrove was found in Petak 7, Petak 8, Petak 9 and Petak 12. In the other Petaks, mangrove were less than 20% of their surface. Mangrove of Rhizophora in 26 Petaks covered 290 Ha only.
The Volcanoes of Indonesia And Natural Disaster Reduction Herman Th. Verstappen
Indonesian Journal of Geography Vol 26, No 28 (1994): 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.2206

Abstract

Indonesian volcanism is related to the subduction (genie zones of the Lido-Australian and the Pacific-Philippine plates at the contact with the Asian plate. Rows of volcanoes perpendicular to the plate movement point to steepening of the subduction zone. with time. Strafo volcanoes and also ignimbrite plateaus associated with socalled "volcano-tectonic" depressions Of deep-seated faiths are major features. •Fluvio-volcanic flows and slopes arc common due to the humid tropical climate. Large volcanic landslides and debris flows causing rupture of crater or caldera rims and the collapse of slopes also arc important volcanic geomorphological features.The role of geomorphological survey and the use of aerospace technology in volcanic hazard zoning is emphasized
The Dilemma of Food in Africa Franklyn R. Kaloko
Indonesian Journal of Geography Vol 26, No 28 (1994): 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.2207

Abstract

Although over 70 per cent of the labour force is engaged in agriculture, Africa is loosing the capacity to feed itself. Drought, a fast growing population, widespread deterioration of the countryside, as well as a chronic undereinvestment in agriculture, have all contributed to declining yields and a vicious cycle of poverty from which the peasant farmer and African countries have increasingly found it difficult to escape.The need therefore is most urgent for African governments to reexamine their food and agricultural policies to tumble them provide more food for their growing population. Encouragement of large and Medium scale commercial farming, land reform, environmental management, reduction of population growth, improvement in storage and transport facilities as well as pursue political stability and a cessation of the violent conflicts that have characterized the continent, will reduce the food problem in Africa.
Contingent Valuation of Watershed Protection in Nigeria: A Case Study Femi Olokesusi
Indonesian Journal of Geography Vol 26, No 28 (1994): 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.2208

Abstract

The search for appropriate methods for valuing natural resources and monctising externalities is a pressing problem facing many governments, particularly those of the developing countries. While the Nigerian government allocates 2% of its annual gross income for ecological damage restitution (The Ecological Fund), experiences arising from incessant disputes in the oil producing areas, fishing sites, increasing incidence of soil erosion and flooding and other environmental problems, all point to the need to supplement the Ecological Fund with money from other sources.Most environmental degradation resulting from mithropogenic prococcrs in water resource projects can be ascribed to the "common property" perception of water and associated natural resources. Moreover, in deciding which environmental regulations, and water resource projects and programmes are desirable or otherwise, it is imperative to weigh the negative socio-economic impacts, againts the very real beneficial effects. Such a process will entail better monetary quantification of the cost-benefit analysis of the projects and programmes, particularly during environmental impact assessment process.This paper focusses on the use of the willingness-to-pay (WTP) approach for determining the amount of money that people in selected large-scale irrigation and dam project areas in the Sudano-Saludian zone of Nigeria are willing to forego for the sake of environmental protection in the watershed. After a general description of the problems and approaches to valuing and monetising environmental resources and their protection, the details of the study findings and policy implications are discussed.
Spatial Determinants of Import Traffic Distribution At Port Harcourt (Nigeria) Soddy I. Inyang
Indonesian Journal of Geography Vol 26, No 28 (1994): 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.2209

Abstract

This paper highlights the result of a study carried out to examine the Geographic determinants of import traffic distribution at the Port Harcourt Port. A substantial aspect of the study involved building a regression model to estimate import distribution from the Port. The import function was specified in log-linear form. The adequacy of the model was then tested; this, involved statistical experiments to obtain the R-squared, as well as t and f values. Further test on the adequacy of the nwdel was conducted through diagnostic exercises designed to check for inulticollinedrity and heteroscedasticity, in the data used. Results obtained show that road distance and manufacturing industries are significant Geographic determinants of import Cargo distribution at the study Port. It is therefore important to lake the two variables into account in any policy or planning exercise at Port Harcourt Port.

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