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Contact Name
Jumadi
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jumadi@ums.ac.id
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forgeo@ums.ac.id
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Kota surakarta,
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INDONESIA
Forum Geografi
ISSN : 08520682     EISSN : 24603945     DOI : -
Core Subject : Science,
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 8 Documents
Search results for , issue " Vol 25, No 2 (2011): December 2011" : 8 Documents clear
Faktor-Faktor yang Berpengaruh terhadap Pengambilan Keputusan Wanita Migran Bermigrasi ke Kota Malang Budijanto, B
Forum Geografi Vol 25, No 2 (2011): December 2011
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v25i2.5039

Abstract

The low family income, lack of job vacancy other than farmland, the narrow square of land possession, and the high level of household load encourage women deciding to migrate to Malang as an effort to support their household economic welfare improvement. The aim of this research is to find and reveal any condition which causes migrant women household to decide migrating to Malang. The research result shows that demography variables (age, marriage status, and the amount of household load) have significant effect toward migrant womens decision making to migrate to Malang. Also, social-economic variable (migrant women education, household income, farmland square, and type of the job) affects migrant womens decision making to migrate to Malang significantly; but, job vacancy in origin area does not bring significant effect toward migrant womens decision making to migrate to Malang.
Aplikasi ESDA untuk Studi Variabilitas Spasial Hujan Bulanan di Jawa Timur Indarto, I
Forum Geografi Vol 25, No 2 (2011): December 2011
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v25i2.5044

Abstract

This article expose the spatial variability of monthly-rainfall (MR) in East Java region. Monthly rainfall data were collected from 943 pluviometres spread around the regions. Spatial statistics analysed by means of ESDA (Exploratory Spatial Data Analysis) techniques available on Geostatistical Analyst extention of ArcGIS (9.3). Statistical tools exploited to analise the data include: (1) Histogram, (2) Voronoi Map, and (3) QQ-Plot. The result show that histogram and QQ-Plot of Monthly Rainfall data are leptocurtosis. Statistical value obtained from the analysis are: minimum = 54 mm/month, average = 155,5 mm/month, maximum = 386 mm/month, and median = 150 mm/month. Other statistical value summarised are: standard deviation = 44,2 ; skewness = 0,95; and curtosis = 5,09. Finally, monthly rainfall-maps are produced by interpolating the data using Inverse Distance Weighed (IDW) interpolation method. The research demonstrate the capability and benefit of those statistical tool to describe detailed spatial variability of rainfall.
Persebaran Penduduk yang Tidak Memiliki Dokumen Kependudukan di Indonesia Ahmad, Irdam
Forum Geografi Vol 25, No 2 (2011): December 2011
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v25i2.5040

Abstract

There are two main problems of population administration system in Indonesia. Firstly, population data is not well managed and overlapped among many government institutions. Secondly, many people do not possess population documents because they did not report any vital events that have been occurred in their family, such as birth, death, move in and move out. These problems then cause list of election voters (DPT) in 2009 general election (Pemilu) are not valid. This study would like to know geographic maps of people that do not possess population documents by province. In addition, this study also search factors affecting people that do not possess paper official identities, using logistic regression. The results show that out of six independent variables used in this study; age and education of head of household, distance to village office, village status (urban/rural), household income and number of household members, only distance to village office which is significant in influence people do not possess population documents.
Identifikasi Medan untuk Keterlintasan Rel Kereta Api antara Gundih–Karangsono Kabupaten Grobogan Hardjono, Imam
Forum Geografi Vol 25, No 2 (2011): December 2011
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v25i2.5045

Abstract

This reseach aimed to 1) identify the characteristics terrain for railway track between Gundih-Karangsono, 2) evaluate the capability of terrain and faffecting factors of damages on the track. Field survey and laboratory analysis were used to collect stratified sampling based primary data namely slope, points load index, structure of rock, erosion, mass movement, permeability, soil texture, water degree, potential volume change. Secondary data consists of rainfall, topography map, geology map, soil map and landuse map. Factors that cause train stripe between Gundih-Karangsono often experience damage are: points load index in every terrain unit 3 kg/cm² (very weak), soil texturs are clay and clay loam, soil permeabilities are 0,164-0,579 height of water is from 50-57 % and soil volume changing potential very high, from 6,4-6,5 cm.
Penggunaan Citra Satelit untuk Kajian Perkembangan Kawasan Permukiman di Kota Semarang Pigawati, Bitta; Rudiarto, Iwan
Forum Geografi Vol 25, No 2 (2011): December 2011
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v25i2.5041

Abstract

This study aims to examine the development of settlement area in Semarang City using remote sensing imagery. This study used the spatial approach using quantitative descriptive analysis. Interpretation of satellite imagery is an initial activity of the stages of analysis. This activity aims to identify settlement area in the city, the analysis of developments in the residential area of Semarang will be done on the next step. The results showed that the settlement area in Semarang City was increased 9.78% from 1994 to 2005. Distribution of land settlement of the least extent in the sub district Gayamsari and Tugu. The largest residential area located in the sub-district Banyumanik, Tembalang and West Semarang. The regular, distribution is mostly located in Ngesrep Village, sub-district Banyumanik. On the other hand, the irregular distribution is located in Pudak Payung Village, sub-district Banyumanik and in the Rowosari Village, sub-district Tembalang. The composition of regular and irregular pattern were unchanged from 2006 to 2011. The evaluation result of the suitability of land use for settlement on the spatial plan (RTRW) all over the area indicated that more than 80% settlement areas were suitable with the plan.
Aplikasi Penginderaan Jauh dan SIG dalam Penilaian Potensi Erosi Permukaan secara Kualitatif di Daerah Tangkapan Waduk Kedung Ombo Miardini, Arina; Harjadi, Beny
Forum Geografi Vol 25, No 2 (2011): December 2011
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v25i2.5042

Abstract

The purpose of this study was to determine the potential erosion qualitatively by using SES by using Remote Sensing and Geographic Information Systems in Kedung Ombo’s catchment area so it can be determined which areas of priority should be conserved. The method used is qualitatively analyses through SES method (Soil Erosion Status).) Which is calculated based on five parameters are: slope direction (aspect), slope (slope gradient), the density of the river (drainage density), soil type (Soil types), and land use (landuse/landcover). The result shows that DTW Kedung Ombo has three classes of erosion, which is very low, low and medium. Amounted to 41179.08 ha or 71.31% of the total DTW Kedung Ombo erosion potential is still relatively mild, 13956.01 ha (24.17%), erosion potential is very low and 2608.95 ha (4:52%) were classified as potential erosion.
Genesis Pedon Tanah yang Berkembang di Atas Batuan Karbonat Wonosari Gunungkidul Mulyanto, Djoko; Subroto P.S., S; Lukito, Herwin
Forum Geografi Vol 25, No 2 (2011): December 2011
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v25i2.5038

Abstract

The variation of soil color that developed on carbonate rocks which are generally white, very interesting to be studied. The aim of the study is to examine the formation of two pedons of black soil and red soil by hue 10 YR and hue 5 to 2.5 YR which successively developed on marly limestones and calcarenite. Analysis of mineral properties consist of the total minerals of sand fraction, clay fraction and rock powders. Soil chemical properties include: pH, organic C, exchangeable cations and cation exchange capacity, CaCO3, the amorphous-crystalline of Fe and Mn, the total of Fe and Mn, the analysis of physical properties is the texture of seven fractions. The results showed that the development of the red soil is much more developed than black soil that shown by intensively decalcification process of red soil that impact on the low of pH, base saturation and cation exchange capacity, whereas the development of black soil is inhibited. The formation of black soil is more inherited of clay bearing marly limestone after carbonate dissolution, whereas the red soil development through rubification and illuviation.
Kebutuhan Luasan Areal Hutan Kota sebagai Rosot (Sink) Gas CO2 untuk Mengantisipasi Penurunan Luasan Ruang Terbuka Hijau di Kota Bogor Endes, Dachlan N.
Forum Geografi Vol 25, No 2 (2011): December 2011
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v25i2.5043

Abstract

The purpose of this study was to determine the need of the urban forest area as sink (sequestration) of CO2 gas from fuel oil and gas in Bogor City. Analysis of dynamic system is used to determine the need. Powersim software with the license number PSSL-N999998-5NC2Y was used in this research. Satellite imagery in 2003, 2005 and 2007 were used to analyze the extent of green space and built space as well as percentage changes. This study revealed that the urban forest area required as well as the number of seedlings are varies according to time and the sink rate. Therefore, the selection of tree species based on the sink rate should really be considered. By using the very high-sink rate trees, the area needed for this purpose will be smaller and can also make lower the ambient concentration. On the other hand, when the use of high-sink trees, the ambient concentration of this gas will increase again and the urban forest area that needed will be larger.

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