Indonesian Journal of Geography
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URBAN SPRAWL OF THE CITY OF YOGYAKARTA,SPECIAL REFERENCE TO THE STAGEOF SPATIAL TRANSFORMATION (Case Study at Maguwoharjo Village, Sleman District)
No full textThe study was conducted in Maguwoharjo Village, Depok Sub-District,Sleman District, which is part of urban fringe area experiencing regionaltransformation. This study aims at understanding the regional transformationstages in the location studied. The survey method using in-depth interviews withsome informants was implemented. The data analysis was done descriptivequalitatively. From this study, it is found out that spatial distribution of regionaltransformation stages is closely associated with street connection and growthareas. Some areas directly bordering on Yogyakarta-Surakarta roads have higherregional transformation intensity than villages distant from the streets and growthareas
APPLICATION OF US-SCS CURVE NUMBER METHOD AND GIS FOR DETERMINING SUITABLE LAND COVER OF SMALL WATERSHED
No full textThis study aims to reveal the appropriate land cover which can reduce runoffusing US-SCS Curve Number method with GIS. Four land cover scenarios aredeveloped to reveal which one of existing land cover types is appropriate for thearea. To make a validation of the application US-SCS Curve Number Method,calculating observational run-off is required. Statistical analysis is than used totest those two run-off data. The result of this study shows that actual run-off depthis 2143, 0 mm and peak discharge is 91, 76 m3/s. The result also reveals that forestcoverage can reduce dramatically surface run-off until 48, 38 percent. Potatoincreases surface run-off 1, 59 percent, on the contrary, applying cacica papayacan reduce surface run-off 24, 6 percent. Scenario 4 is developed based on theresult of the previous scenario on run-off yield. Run-off yield result from scenario 4is 1690, 40 mm (decrease 21, 14 percent from actual run-off). Statistical analysisshows that there is no difference between observed run-off depth and estimatedrun-off depth in the level of significance 5 %
REGIONAL SPECIALIZATION AND INDUSTRIAL CONCENTRATION IN THAILAND, 1996-2005
No full textoai:journal.ugm.ac.id:article/1568This paper provides a descriptive analysis of the changes in the industrial and spatial concentration that occurred in Thailand from 1996 to 2005. Based on the data from the Department of Industrial Work of the Ministry of Industry and using the Hirschman-Herfindahl index of concentration, the geographical concentration of industries in the study regions was measured. The Hirschman-Herfindahl index has the useful property of being decomposable into sources of changes in the concentration. Moreover, location quotient was also used to measure the regional specialization of the manufacturing industries in Thailand. Results of the analysis indicated that from 1996 to 2005, the decrease in the spatial concentration of manufacturing as well as in the regional specialization in manufacturing in Thailand remained stable to a lesser extent. The results have also indicated that most factories continue to be concentrated in Bangkok and its neighboring areas. It can therefore be best argued that in the case of Thailand, the effect of its trade liberalization policy has been more powerful than its industrial decentralization policy.
ANALYSIS ON COMPARATIVE ADVANTAGE OF AGRICULTURAL SECTOR IN KULON PROGO REGENCY
No full textComparative advantage is measured using economic and social values. Comparatively superior commodities mean that they are produced in an economically efficient way. Agricultural sector is the one that is prioritized in Kulon Progo Regency and, thus, purposively that region is employed as the sample of this study. Research is based on the analysis of secondary and primary data collected through interviews with 60 respondents. The respondents consist of 2 groups of rice field farmers in Lendah Sub-district, Kulon Progo Regency, which constitutes the predominant crop field area. The analysis is conducted descriptively using the Policy Analysis Matrix method. Based on the cost-benefit analysis, rice commodity agribusiness in Kulon Progo regency has privately generated average financial profit amounting to Rp. 2, 18 million per season. Meanwhile, it is socially and economically generating relatively large profit amounting to Rp. 4.58 million per season. The level of rice field economic efficiency amounts to 0.747. These values demonstrated that rice agribusiness has comparative advantage which means that producing rice commodities in Kulon Progo Regency is more cost effective than importing them.
LAND USE PLANNING FOR SETTLEMENTS AREA IN CONSIDERATION OF FLOOD AND LANDSLIDE HAZARDS IN BAGELEN SUB-DISTRICT, PURWOREJO INDONESIA
No full textThe objective of this research is determining alternative land use for settlement development considering its hazards susceptibility. Data were obtained by interviews, participatory GIS, direct-observation, sampling of soil and secondary data analysis. The flood hazard map was produced using Kriging interpolation techniques; flood depth map for the largest flood in the year 2004 was created. The area with high landslide hazard is located on the hilly area in the eastern part of the area of study. The result from overlaying two hazard maps indicates that the area which considered as having less hazards is located on the colluvial plain. The result of suitability analysis including hazard and people perception-based criteria showed that the area suitable is mostly located in Bagelen and Krendetan Villages. The result of suitability analysis of the non-hazard criteria showed that the area suitable of which 338.1 Ha is an existing settlement.
FLOW PATTERNS OF VEHICULAR TRAFFIC ALONG HIGHWAY TOLL PLAZA IN OGUN STATE
No full textCongestion on our highways, freeways and arterials are increasing at an alarming rate. This occurs because there is an increase in vehicular growth without a corresponding increase in road size, and this has made free flow of traffic a preponderant problem in our highways. Toll plaza causes delay on our highways and results are formation of queue. This paper examined how simple queuing model can be used to determine traffic intensity and the flow pattern of car traffic at a toll plaza. The study was carried out with twelve field assistants at Ogere toll plaza in Ogun State. Findings show a significant variation in the degree of hourly traffic intensities at the four pay points for cars at the toll plaza. However, variation in the daily traffic intensities at the four pay points for cars showed no significant variation. The study also revealed that bumps constructed to check vehicles speed, hawker’s trading activities are among other factors that constitute hindrance to free flow of traffic other than service time and inter-arrival time of cars at the toll plaza. It is therefore recommended that appropriate authority should look into these factors and take necessary steps towards ensuring free flow of traffic at the plaza
LAND DEGRADATION ASSESSMENT, IN THE PERI-URBAN AREA OF KADUNA METROPOLIS, NIGERIA
No full textThis study assessed land degradation in the peri-urban area of Kaduna metropolis from the perspective of land use and land cover with the aim of ascertaining the role of these variables and to suggest on how to manage their existing nature and characteristic. Random sampling method was used to collect data from field observation, measurement and semi-structured interview which are summarized and analyzed using descriptive statistics and presented in the form of tables and photographs. The results indicated that the existing nature and characteristic of land use and land cover cannot be exonerated from contributing to ongoing land degradation in the area for the following reasons: first, 6% of the area is already degraded, second, low average values for surface cover index (12.7%), leaf cover index (11.4%) and tree density (101 per 25,000m2), third, lost of vegetation biodiversity, fourth, absent of adequate conservation techniques to reduce the effects of crop farming and animal husbandry and lastly, evidence of problems already created by soil mining and refuse dumping. The situation in the study area calls for adequate land use and land cover planning, monitoring and management.