Indonesian Journal of Geography
Not a member yet
647 research outputs found
Sort by
Formal rural credit for rural development in bantul district, special province of Yogyakarta : provision, use and needs
No full textAfter outlining the shift in interpretation of the concept and objectives of rural development since the mid-1960s, the main consequences of the new role assigned to formal credit in the desired rural transformation process are explored. Againts this background, some general characteristics of rural credit provision in Indonesia are summarized. Subsequently, the study deals with the present-day role of formal rural credit in the process of rural development in a densely populated, but internally heterogeneous district south of Yogyakarta city. The credit supply system in the area, the actual use of credit by . the house holds in the various agro-physical zones, and the appraised needs for credit in these subdivisions are presented The test con dudes with recommendations for a policy of rural credit provision which is better attuned to_ the socio-economic circumstances as present in the geographical setting of this part of central Java, Indonesia
Application of inverse modeling technique to describe hydrogeochemical processes responsible to spatial distribution of groundwater quality along flowpath
No full textThe main objective of this research is to define the mechanism model of chemical reactions, which are responsible to the spatial distribution of water quality along flowpath using inverse modeling technique. in addition, the Saturation Indices (SI) analysis was used to characterize the effect of geological condition toward dissolved constituent within the groundwater: Moreover, Mass Balance Modeling code was employed to describe the stoichiometry and hydrogeochemical processes along flowpath.Field survey was carried out in order to obtain the data of hydraulic head and electrical conductivity to construct flownets and tentatively illustrate the spatial distributions of shallow groundwater quality. Next, the flow line was applied to define the sampling position of groundwater and aquifer mineral. Laboratory analysis was conducted to identify the main phases and constrains of dissolved constituent within the groundwater. Afterwards, the application of NETPATH 2.1.3 and Phreeqc Interactive 2.8 for Windows software aid to model the Mass Balance Calculation in order to account the prevailing hydrogeochemical reactions.The result shows that firstly, the aquifer within the research area can be grouped into several aquifer systems (i.e. denudational hill, colluvial plain, alluvial plain, and beach ridges) from recharge to discharge which generally have potential groundwater resources in terms of the depth and fluctuation of groundwater table. Secondly, flownets analysis gives three flowpaths that are plausible to be modeled in order to describe their hydrogeochemical reactions. Thirdly, the Saturation Indices (SI) analysis shows that there are a positive correlation between the mineral occurrence and composition and the value of SI from recharge to discharge. In addition, The Mass Balance Model indicates that dissolution and precipitation of aquifer minerals is dominantly change the chemical composition along flowpath and the rate of the mass transfer between two wells shows a discrepancy and be certain of the percentage of the nature of aquifer mineral. Lastly, there is an interesting characteristic of mass balance chemical reaction occurs which is the entire chemical reaction shows that the sum of smallest mineral fmmol/litre) will firstly always totally be reacted
STUDY OF SUPERIOR COMMODITIES AND ITS SPATIAL DISTRIBUTION IN BANGKA BELITUNG ARCHIPELAGO PROVINCES
No full textABSTRACTEconomic development in decentralization era, presumably, will not besustainable if only supported by non-renewable resources. Then, local governmentneed to changefrom mining to non-mining based economic development. The nonrenewableresources themselves are used as capital in the transformation process.In supporting these endeavours, study of superior commodities in Bangka BelitungArchipelago Provinces is need to be conducted as efforts to increase society'swelfare or other stakeholders post decreasing of tinproduction this province
DIFFERENCES IN DISASTER RESPONSE DUE TO VARYING DATA AVAILABILITY A SERIOUS GAME FOR FLOODING DISASTER RESEARCH IN SURAKARTA, INDONESIA
Get PDFThis research aims to propose a method to study the effect of data availability indisaster-response study. This research focused on how to quantify the relationbetween data availability and actions taken by decision maker. The more specifictopic is represented as disaster response due to varying data availability usingSerious Game method in the Public Works Unit Surakarta. The serious gameprovide scenario to gather data about several issues. Digital elevation model,flood alert stage decision making, and damage prediction information wereneeded. This research also could promote as a complement the other method forcollecting data and decision-making training program for flood manager. Theresult of analysis has shown that there are differences of responses based on thedata availability. Better responses can be achieved by the improvement of dataavailability. It also proves that the number of correct decision was raised by theimprovement of data availability
HARMONIOUS INTERACTION AMONG ETHNICAL COMMUNITIES IN REGIONAL DEVELOPMENT
Get PDFThis research was conducted in 13 villages of Secanggang district, North Sumatra Province-Indonesia. This study describes the capacity and condition of harmonious interaction among ethnical communities in regional development, which focuses on villager motivation as intervening variables. Motivation is a very important instrument in bridging the concepts of harmony among communities towards regional development. Development of a region is implemented through harmonious interaction among various ethnic communities that can serve motivation as an intervening variable. This study uses a combination of qualitative (exploratory) and quantitative method. There is one factor that plays a role as a determinant factor in causing successful development. The interaction, either directly or indirectly, generates assimilation between ethnical cultures
FARMING PRACTICE IN A FLOODPLAIN VILLAGE OF ASSAM (INDIA): CONTINUITY AND CHANGE
No full textFarming practice in a floodplain environment holds great ecological,economic and social significance. In many cases, agriculture is modernizedwithout caring much for the local environmental conditions. The traditionalfarming practices, although relatively less productive, are more often than not ecofriendlyand sustainable. This paper attempts to study the farming practicesfollowed in a floodplain village of the Brahmaputra valley, Assam, India in termsof cropping practice, inputs and crop protection measures, methods of harvestingand threshing and changes in cropping technology. The study is based on (i)primary data collected from all the 408 households of the village through apurposively designed survey schedule, (ii) interviews with selected farmers andother local knowledgeable persons, and (iii) field observation made by the authors.The data and information thus generated have been summarized using simplestatistical and cartographic tools. The study reveals that the farming practice in thevillage is still traditional in nature with little application of modern inputs andimplements. The small size of landholding and scattering of plots and very limiteddiversification of the rural economy hinder the process of modernization of thefarming practice
ANALYSIS OF SOLID WASTE MANAGEMENT IN KOSOFE LOCAL GOVERNMENT AREA OF LAGOS STATE
No full textSolid waste is a significant and growing problem in many urban areas ofthe Developing world. Current systems of waste management in most developingcountry cities are very rudimentary at best and are grossly inefficient and effective.Uncontrolled landfill disposal of solid waste is a pervasive problem which causes arange of external costs, including human health hazards. This research analyzesthe solid waste management and its problems in Lagos. The research makes use ofboth structured questionnaire survey to the state of solid waste managementactivities as well as the challenges while published data from Lagos state wastemanagement Agency as well as other published documents were used tosupplement the primary data sources . It is concluded that the most fundamentalrequirement is an integrated regulatory framework and supporting institutions.Once this framework is established then the problems of waste management will bereduced to the minimal level
CARBON GAS CALCULATION AS A RESULT OF LANDUSE CHANGE BY USING MULTI TEMPORAL LANDSAT TM 7 IMAGES OF 1992-2007 IN LIMA PULUH KOTA REGENCY
No full textThe objective of this research is to map landcover change, and releasedcarbon emission in Lima Puluh Kota Regency and Payakumbuh Municipality since1992 – 2007 by using rapid assessment approach based on Multi TemporalLandsat TM 7 Images (1997-2007) of the Remote Sensing Technology. The findingspresent nine landcover classifications identified in Lima Puluh Kota Regency andPayakumbuh Municipality. The current largest landcover change areas arePrimary Forest, and Secondary Forest. Land cover change in Lima Puluh KotaRegency and Payakumbuh Municipality during the period of 1992 – 2007 indicateseven distribution of biomass content in both areas. In total, land cover changesince 1992 - 2007 in Lima Puluh Kota Regency and Payakumbuh Municipalitycontributes to the release of 1,141,458,592 tons of carbon or 76,097,239 tons ofcarbon per year, with 4,185,348,171 tons of CO2 emissions. The data suggest thatduring that period, both areas contributed 279,023,209 tons of CO2 as greenhousegas affecting the Earth’s temperature which then led to global warming
THE DISTRIBUTION OF FLOOD HYDROGRAPH RECESSION CONSTANT FOR CHARACTERIZATION OF KARST SPRING AND UNDERGROUND RIVER FLOW COMPONENTS RELEASING WITHIN GUNUNG SEWU KARST REGION
No full textThis research is carried out within two caves with underground river andone karst spring, which is located in Gunung Sewu karst area, Gunung Kidul. Theobjective of this research is to recognize some flood hydrograph properties of karstaquifer characterization in order to compare the comportment of aquifer to releaseits flow components between underground river and karst spring. Water level dataloggers are installed within two caves and one karst spring represent upper,middle, and lower elevation of karst topography, which are Beton, Seropan, andToto Cave, respectively. In addition, time series discharge measurement incorrespond to minimum, average, and maximum flow events is conducted toformulate the Annual Stage Discharge Rating Curve. Thereby, the full year riverhydrograph may be defined. Afterwards, by selecting several flood hydrographevents, the recession constant in each cave including diffuse flow (Kb), and fissureflow (Ki), and conduit flow (Kc) recession constant, is then calculated andcompared in every location. The result shows that Beton Spring that represents theupper part of research area confirms the quickest respond towards rainfall events.Also, this point specifies the medium number of diffuse recession constant(Kb=0.983), compared to Seropan (0.996), and Toto (0.937), means that theaquifer surrounding Toto Cave release its groundwater storage faster than BetonSpring and Seropan Cave. On the contrary, Seropan Cave performs the highestvalue of diffuse recession constant (0.996) and this situation is confirmed by its dryseason discharge that still above 810 lt/second
APPLICATION INTEGRATION METHODS ON LANDSAT ETM + TO DETERMINE EARTHQUAKE POTENTIALS IN PALU GRABEN
No full textThis study aims to assess the ability of the integration method at LandsatETM + imagery in recognizing object fault, main fault and secondary fault in PaluGraben. Mapping of fault and calculate earthquake potential, based of fault that isfound in Graben of Palu. The image used in this study is Landsat ETM +.Techniques used to process Landsat ETM + is a method of integration. LandsatETM+ imagery processed with ENVI software 4.4, while the mapping of faults anddetermining of length using ArcGIS 9.2.The potential of earthquakes is calculatedfrom the length of faults found in the Graben of Palu. Results obtained showed thatthe patterns of lineament as a picture of fault in the Palu Graben can be extractedfrom Landsat ETM +. Lineament of fault is seen clearly on Landsat ETM + imageprocessed with integration method and band combination, 45PC1_8. Faults arearranged in the form of map. There are 66 faults found at research sites.Magnitude earthquake 5,5 SR can be produced from the fault with a length greaterthan or equal to 9 km. If each faults contributes the same to earthquakeoccurrence, the potential incidence of earthquake with magnitude greater than orequal to 5.5 SR in the Graben of Palu is 33.8%, while the magnitude is smallerthan 5.5 SR is 66.2%. The largest magnitude that can occur in Palu Graben, 7.1SR. These results indicate that the potential earthquake destructive (≥ 5.5 SR) ofapproximately 33.8%