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Forum Geografi
Published by Universitas Muhammadiyah Surakarta
ISSN : 08520682     EISSN : 24603945     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Forum Geografi, Indonesian Journal of Spatial and Regional Analysis (For. Geo) is an open access, peer-reviewed journal that will consider any original scientific article for expanding the field of geography. The journal publishes articles in both physical and human geography specialties of interest to spatial analysis and regional analysis in (but not limited) Indonesia by applying GIS and/or remote sensing techniques.
Arjuna Subject : -
Articles 1,205 Documents
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Unconfined Groundwater Quality based on the Settlement Unit in Surakarta City Cholil, Munawar
Forum Geografi Vol 11, No 1 (1997)
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Abstract

The quality of groundwater of unonfined aquifer with growing population density is endangered by population. This may cause serious problem as greatest portion of the population utility groundwater of unconfined aquifer as their drinking water. This research is aim at studying the difference in quality of groundwater of unonfined aquifer in Surakarta Munipicality by settlement units, and studying the impact settlement factors and groundwater depth on the quality of groundwater of unonfined aquifer. The research was executed by a survey methhod, taking 44 units of groundwater of unonfined aquifer samples at stratified proportional random from 44 villages. The samples were analyzed at the laboratory of Local Drinking Water Company (PDAM) of Surakarta. Data were analyzed using by stiff diagram, variance analysis, and multiple regression. The research reveals that there is very little differences in the quality of free groundwater in Surakarta, as it is shown by same chemical properties. Several chemical properties were found very high in concentration, but the rest were simultaniously low. On the basis of minimum quality of drinking water coli content have exeeded the allowed limit for drinking water.Among the settlement units observed, there were no significant differences in the physical, chemical (except pH), bacteriological factors. This means that differences among various depth of water. Electrical onductivity (EC), Na, Mg, H2CO3, H2SO4, and NH3 were found different among various depth of water table. Major chemical conentration were significant with geology formation. Population density, built up areas, size of settlement, building density, and the condition of drainage simultaniously affect the quality of free ground water. No differences among settlement units was observed the most important fators determining the free groundwater quality was population density.
Applied Multitemporal Image and Geography Information System to Analyze Region Potential in Part of Slump of Jebres Subdistrict in Surakarta Rindarjono, Moh. Gamal
Forum Geografi Vol 16, No 1 (2002)
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This research is aimed at detecting the areas having potential to be the slums by looking at the decrease of population index and physical environment from year to year. In this way, a model of analysis for the area with the potential of being slummed can be resulted.The research was conducted in some parts of Jebres Subdistrict in Surakarta Municipality by employing qualitative method approach. There were two types of data used in this research. The first were prime data inform of black and white Panchromatic aerial photographs with the scale of 1 :5 O00 at the year of 1982, and small format colorful anchromatic aerial photographs at the year of 1992. The second were secondary data related to the population condition i.e. demography, economy, health, social and culture, as well as physical environment covering water and land for 20 years (1982 j 2000).All the data in this research were analyzed by Geographical Infiormation Systems at arc Info. The final result of the research showed that based on the 1982 black and white Panchromatic aerial photographs, slum areas did not exist at all. Meanwhile, based on the 1992 small format colorful Panchromatic aerial photographs with the scale of 1:5 000, 140.882 hectares of slum areas were found at jagalan and Gandekan Villages. Overlay from the maps of quality development in dwelling area and the decrease in environment index produced a map showing the area with the potential of being slummed covering 240.14 Hectares.
Benefit Evaluation of Human Settlements Development Funded by SPL JBIC INP-23 in Indonesia Sunarhadi, Muhammad Amin
Forum Geografi Vol 18, No 1 (2004)
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Abstract

The Government of Japan and the Government of Indonesia has signed a loan agreement Sector Program Loan (SPL) INP 23 for Settlement Sector (Human Settlement) through the Japan Bank for International Cooperation (JBIC) which is intended to overcome the economic crisis and its impact in Indonesia since 1997. Research this carry out an evaluation of the benefits of settlement activities that have been implemented in order to know how much contribution the benefits of the settlement Sector program implemented through the SPL IVI-23, both the recipient community, relevant agencies that manage the project, and local governments that implement and oversee the development of the project . The survey was conducted by using a regional approach, ex post facto, and institutional. The selection of cities and counties samples were selected based on three things: the completeness of the program, the amount of funds, and the number of packets. Next, the results of the rank- ings were selected based on 1) the highest ranking, middle, and low; 2) distribution based on the distribution of the three parts of Indonesia, the western, central, and east; and 3) exclude conflict areas. The results showed that in general the development and results of settlement construction is quite beneficial for the government and society. Among other things more organized neighborhoods, neighborhoods healthier, improved infrastructure, and increased mobility of society. Special benefit shows the influence of the change in service, use of services, and its impact. Development of clean water service level (L) is satisfactory, the level of use (U) range in the level of useful and very useful, and beneficial impact. Drainage construction provide the level of service (L) is very satisfactory, the level of use (U) ranged between levels is useful and very useful, and beneficial impact. For the construction of basic infrastructure settlement (IS and hi, i) provide the level of service (L) is very satisfactory, the level of use (U) range from useful to extremely useful, and gives effect (B) is useful.
Hydrological Characteristics of Kaligarang Watershed Soewarno, Soewarno; Yuningsih, Srimulat
Forum Geografi Vol 14, No 1 (2000)
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This paper is a result of research concerning hydrological characteristic in the Garang Catchment Area. At present tha catchment area is often facing the problem of flooding in the dense populated area with cause a lot of loos in Semarang City. This research is aimed at studying hydrological harateristic in the Garang Catchment Area. Hydrological data are obtain from direct measurement at the stream gauging stations in the Garang Catchment Area and collected from Balai Hidrologi Office at Pusat Litbang Teknologi Sumber Daya Air in Bandung and from Hydrological Unit of Central Java Province. From this research were known the rainfall depth, their distribution and their return period; runoff coefficient; streamflow volume; dependable flow; flood discharge characteristi; and minimum discharge. From the some occuring flood indicates of the runoff coefficient is about 0.70. The water volume wasted to the sea is about 195 million m3/year. Yearly average of the dependable flow at stream gaunging stations: Garang – Pajangan  is about 2.28 m3/sec; Garang – Patemon is about 0.92 m3/sec and Kreo – Pancur is about 1.26 m3/sec. Yearly mean of annual flood discharge at Garang – Pajangan is about 435 m3/sec. The maximum capacity of river channel is about 485 m3/sec. The flood discharge characteristic are as follows: time of travel of flood is generally one km/hour approximately, rising time is about 3 hours and time of recession is about 6 – 11 hours. The floods, they are generally occur at the night. Flush flood of 1022 m3/sec occured on January 26, 1990 is estimated on 50 year return period, with 15 year return period of rainfall. The range of minimum discharge is about 0.43 – 3.15 m3/sec. The maximum discharge is about 47.2 – 1118 times of the minimum discharge. Design of the dam in Kreo River at Jatibarang and Kripik River at Mundingan, also increasing of the reforestation area in the upstream catchment are an alternative to reduce the Garang River peak flood.
The Role of Aeolin in The Formation of Earth Surface Configuration and The Influencing Factor Anna, Alif Noor
Forum Geografi Vol 11, No 2 (1997)
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Abstract

Configuration of the earth surface is molded by the interaction of endogenous and exogenous forces. The outcome of the interaction usually has the shape of special charracter. Configuration charracter is then applied to grouping of more simple form called landform. It so happens that one of the landform function is to make geomorphology research more easier. Que of the earth surface configuration is molded by wind force the result of this activity is called the landform which is originally molded by wind process. There are two folds function of wind process i.l: erosion (= coracoid process and deposifronal force). Coracoid process usually takes place on vertical as well as horizontal plane. Coracoid on vertical plane will have the shape of yardang, while on horizontal plane has the shape of pillars, needless, and zenguen. It so happens that depositional wind will shape ripples, sanddunes, and loess.
Sattelite Data for Fish Concentration Identification in Marine Santoso, Sugiharto Budi
Forum Geografi Vol 10, No 1 (1996)
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Abstract

Knowledge shortcoming in fish-living management as well as marine biotic living cycle and fishermen’s fault technology capability causes their inadequate skill to catch fishes in large scale. To increase the result of caught fishes, it necessary to give the fishermen suffice technology of when and where the shool of fishes site in the sea. Recognizing the school of fishes in the sea is guided with the satellite data of NOAA, GOES, ADEOS as well as Landsat and the others which are able to point the site of where fishes are schooling. Besides, by making use of GPS satellite the position of fishermen’s ship then could be detected so that the movement ould be easily observed.
Family Planning Behavior and Small Family Concept Acceptance in Two Different Geographical Characteristics Municipality of South Klaten, Klaten, Central Java Priyono, P
Forum Geografi Vol 5, No 1 (1991)
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The research aim to know the family planning behaviour, the acceptance small family norm and the influential factors in two villages that have different geographical aspect. The behaviour involve the knowledge, the attitude and the practice where as the influential factors involve education, accupation, values of children, income, children still born and family size desired. The research areas are chosen purposive in two villages that have different geographical aspect, social aspect and cultural aspect. The aspect are: 1) location and topography, 2) socialy  structure, and 3) the achievement of effective acceptor. Based on the three aspects, Ngalas village (developing) and Sumberejo (developed) are chosen as research areas. The recorded as ative acceptor (recordedin RI/PUS/1991 form). The respondents are chosen by cencus at two neighborhoord association at every village. There are six variables in this research are assumed influence the periode of the contraceptives use, such as education, occupation status, values of children, family income, children still born, and family size desired. There are three variables are assumed influence the small family norm, such as education, occupation status, and values of children. The data was analyzed by frequency table, crosee table, and statistical analysis (Q square and Regresion). The data was always compared between the two villages. The analysis use computer by Microsoft Program. The research result showed that Sumberejo was better than Ngalas in the knowledge, the attitude, and the practice of family planning. Most of the people who live in Sumberejo understood the contraception device well (52,4%), where as in Ngalas (26,8%). Both of them agreed on using contraception device (more than 70%). The respondent who live in Sumberejo used IUD (40%) and MOW/MOP (23,23%). They had used of the contraception device for 4.8 years on an average. Mean  while the respondents in Ngalas use IUD (23,68%) and MOW/MOP (2,63%). They had used the contraception device for 3,8 years on an average. With respect to decision making of family planning. Sumberejo was better than Ngalas (Sumberejo: 83,4% and Ngalas 63,64%). The purpose of family planning has achieved birth stop. Sumberejo achieved 73,33% and Ngalas achieved 54,55%. The research result showed that the both Sumberejo and Ngalas accepted small family norm. Values of children  were heigh (Sumberejo 97,57% and Ngalas 93,31%). It indicates that the parent still hope the children role for their family. Not only did the parent hope from economics aspect but they hoped from non economic aspect as well. Both the average of live birth and the children who still alive in Sumberejo was lower than Ngalas. Mean while the number of the children who were desired was 2,9 child in Sumberejo and 2,8 in Ngalas. Based on seven statement that was used to identify the small family, there was tendency that the respondent in Sumberejo had better attitude than Ngalas about small family. The factor that influence the period of the contraception device was the number of the children who still children, income, and family planning norm did not influence the period of using of contraception device. The influential factors in acceptance of small family was education. The higher education the better aception of small family norm. Values of children also influenced the acceptance of small family norm, but there was difference of the direction between Sumberejo and Ngalas. In Sumberejo the higher occupation the better aceptance of small family norm, but in Ngalas, the higher percentance occupation the lower acceptance of small family norm.
Utilization of Aerial Photograph and Geographic Information System for Deposit Measurement of Wuryantoro Watershed, Wonogiri Santoso, Sugiharto Budi
Forum Geografi Vol 17, No 1 (2003)
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This research is carried out in Wuryantoro Watershed, Wonogiri, Central Java. The goal of this study is to examine the remote sensing tehnology capability to obtain the parameters of the physical data of land in the prediction of sediment yield. The approach used in landscape with the land unit as mapping unit by using MUSLE (Modified Universal Soil Loss Equation) model. The data analysis used the infrared aerial photo interpretation, which is combined   by Geographical Information Systems (GIS). Infrared aerial photo on scale 1 : 10.000 in 1991 is used as primary source of data to obtain the parameters of physical data of land. The data analysis uses the Geographical Information Systems. The prediction of the sediment yield is not done directly. First, predicated the runoff characteristi, which contains of runoff coeficient, runoff volume and peak discharge. Then the runoff charateristic with other influential factors (slope, soil, and land cover and conservation practice) are used to predict the sediment yield. The result of the prediction is tested by comparing them with the data of field measurenment result. The accuracy of the result of aerial photo interpretation for prediction sediment yield is 89.45%.
Orientation Use of Houses in Rural - Urban (A Case Study in the Eastern District of Kartasura, Sukoharjo 2001) Amin, Choirul; Dilahur, Dilahur; Musiyam, Muhammad
Forum Geografi Vol 14, No 2 (2000)
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Kartasura, seen formspace point of view, has special position because it is located in the corridor intersection between Semarang – Surakarta – Yogyakarta. Which becomes three central developing cities in central part of Java. This study is carried out in border town area in east part of Kartasura, which consist of four village – Pabelan, Gonilan, Gumpang, and Makamhaji. That are growing fast due to the effect of urban characteristic from Surakarta. The orientation phenomena of the use of house (OPR), the urban population that led to the commercial use is an interesting fact dealing with the influence of urban activities in those areas. The goal of this study is to know the kindsand the spread of the space of OPR population in east part of Kartasura and the factors, which is studied, is the houses in the research areas and the respondents are the owner of the houses. The sampling uses systematic proportional random sampling. The location of house sample (UMS, UNS, Islamic Boarding Shcool of Assalam), health services (RSIS and RSO), and commercial services (ALFA, UMS stores). All of them are located in Pabelan and Makamhaji. While industrial center consist of PT Tyfountex and small industries around it in Gumpang. Every central activities is divided into two cluster based on the relative distance from central activities (far and near), so as a whole there are four clusters which made up of two clusters in service center and the other in industrial center. Sample at every cluster is taken proportional about 2,5% based on homogenity consideration, whether the selecction of house sampling is taken randomly. The numbers of samples as a whole 175 respondents. The collected data are prensented in the form of frequency and cross table. Qualitative data analysis uses logical thought, deductive induccctive, analogy and comparison, while quantitative data analysis is done using frequency table analysis and cross table. The use of both analysis is sadapted with the data and goal of the study. The result of this  study shows that 1) OPR population in east part of Kartasura consist of three kinds, commercial OPR, non commercial, and combination. While the spreading space of the kind of OPR follows the concept of distance decay principle – the nearer relative distance of the house to the center of activities, the more commercial orientation the use of the house is. 2) External factor, which influence OPR, is the developing urban activities such industry, commerce, education, and health instrument. While the internal factor which influence to OPR is the size of land ownership.
Study on Species Diversity and Stand Structure in Meru Betiri National Park Riyanto, Heru Dwi; Wuryanta, Agus
Forum Geografi Vol 29, No 1 (2015): Forum Geografi
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National parks are forest ecosystems that contain biotic and abiotic resources. Biodiversity is the data and information necessary to understand the degree of loss of species diversity and formulate a sustainable alternative of decline in these resources. The research objective is to study the reciprocal relationship between elevation and habitat of a species in an ecosystem. Research conducted at the National Park (TN) Meru Betiri. The results show that there are spatial variabilities of the species diversity based on the elevation in the study area. Elevation is inversely proportional to species diversity index, the higher the elevation, the species diversity index tends to decline, but the index of the importance of endemic species have increased. Group stand structure and species composition is influenced by the level of elevation with their own environment.

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