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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.
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Articles 21 Documents
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Search results for , issue "Vol 20, No 1 (2006): July 2006" : 21 Documents clear
Analisis Profil Daerah Kabupaten Klaten Tahun 2002-2005 Priyono, Priyono; Susilo, Ihwan; Karyono, Karyono; Sigit, Agus Anggoro
Forum Geografi Vol 20, No 1 (2006): July 2006
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Klaten Regency is a regency that owning very strategic situation, that is lay between 3 (three ) metropolis (Jogjakarta, Surakarta, and Semarang). This Regency is having immeasurable properties, there are agriculture area, tourism, mining, and so on. This condition is obliging that this regency have to make an inventarisation of their properties to make a profile so thisregency can make a good decision to their region especially to their peoples. This research use secondary data analisys that collected from region statistics and by collecting data from many related institution and than it can gives some resource balance of this sub-province. Topographic condition of Klaten Regency predominated with flat and landuse which is rice field areal still majority, designate that this area is compatible used for agriculture. This condition is proved with big paddy supply which reach 300 ton per year while other agriculture product just only about tens of thousand ton. Agriculture sector is a potential sector to buils but the condition is worsed by the degradation of rice field areal with 26 hectare per year and also the increasing of the amount of resident every year that is proving the high requirement of land. Besides agriculture, this sub-province is also supported with mine and tourism sector. Mining sector are stone, clay, and sand are caused by the location of this area is in volcanic hill side. Tourism sector also contribute big Region Original Income to this Regency which progressively mount every year. By 3 (three) tourism object type, this sector can contribute Region Original Income equal to 773.674.000 rupiahs and supported with hotel facility, restaurant, and accessibility which mounting every year. However, amount of terminal which in this time there is not yet supported the demand.This Regency also experience of the increasing of economic sector, that is the financial that is the amount of Foreign Capital Proyect and Nation Capital Proyect, Region Original Income , and Brotto Regional Domestic Product that designating the increasing of people level live.
Remote Sensing and GIS for Surface Water Resources in Rawa Biru – Torasi Merauke Papua Hartono, Hartono; Meteray, Barano SS; Farda, Nur Mohammad; Kamal, Muhammad
Forum Geografi Vol 20, No 1 (2006): July 2006
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The research describe about surface water ecosystem study in Merauke Papua by using multisource and multistage remote sensing data which was splitted into two parts based on the study areas. First, it is for micro scale spatial analysis focusing on the Rawa Biru – Torasi watershed, while the second is for macro scale spatial analysis for Transfly ecoregionin the floodplain areas of Merauke. Multispectral approach was adopted for Landsat image analysis, followed by field survey on the selected areas. Auxilary data used are maps, secondary documents in order to improve understanding of the areas. Interview and discussion with related institutions (Wasur National Sanctuary, Potable Water Services, Internal Affairs Government, Forestry Service) accordingly were carried out. The research result showed that remote sensing imagery are usefull for surface water resources study. Physical condition of the Rawa Biru – Torasi watershed, vegetation analysis by using multitemporal data, wetland type, hydrological process in the floodplain were presented. Rawa Biru watershed as a resource for drinking water supply environmentaly decreased considerably due to the species invasion, with successively dominated by hydrophilla, tebu rawa, rumput pisau, dan Mellaleuca and sedimentation took place in the main body of swamp. Upper part of the watershed is actually included in the Papua New Guinea, in long water resources development scheme, it need administratively belong to one recharge areas for the watershed.
Contamination Vulnerability Analysis of Watershed for Water Quality Monitoring Widyastuti, Widyastuti; Suprayogi, Slamet
Forum Geografi Vol 20, No 1 (2006): July 2006
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

This research is an early step to determine the location of rain gauge station for artificial neural network modeling. The implementation of this model is very useful for water quality monitoring. The objectives of this study are: 1) to study the distribution of watershed parameter, that are average annual precipitation, land use and land-surface slope, 2) to conduct vulnerability analysis of watershed contamination, 3) to determine the location of rain gauge station. The study was performed by weighing and rating method of watershed parameters. The vulnerability degree of watershedtocontaminationispresentedasvulnerabilityindex.Thisindexisdeterminedbyoverallsumofallmultiplication between score and weigh number of each parameter. All data manipulation and data analysis were performed by using Geographic Information System (ArcView version by 3.2). The vulnerability of watershed contamination map had been generated using overlay operation of parameters. The results show that vulnerability index are varies between 10 up to 40 intervals. Hence, the indexes were categorized into three levels of watershed vulnerability, namely low (10 – 20), moderate (20 – 30) and high (30 – 40). It is found that the study area covered more by high vulnerability of watershed to contamination. The zoning of watershed vulnerability meant to determine the rain gauge location. There are three rain gauge stations on the area that they are in a high vulnerability level, whereas the other vulnerability level area has one rain gauge station. Each level of vulnerability area is able to represent the source of contaminant that it maybe influence the water quality of Gajahwong river.
Analisis Sosial Ekonomi Masyarakat Di Zona Rehabilitasi Taman Nasional Meru Betiri, Jember, Jawa Timur (Kasus Di Desa Andongrejo, Wonoasri, Curahnongko Dan Sanenrejo) Subaktini, Dewi
Forum Geografi Vol 20, No 1 (2006): July 2006
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

National Park of Meru Betiri (TNMB) is one of National Park which exist in the region tip East Java Part of South arch residing in region tip East Java Part of South arch. This National Park has various function in protecting system of the life of flora and fauna with the ecosystems. The existence of National Park has a big advantagerus for the communities who live around the area. Along with change of period to governance in the new order becomes a reform governance makes the TN-MB ruined as the effect of foray. Hall Management of DAS Sampean-Madura (2002) reports that National Park of Meru Betiri which its width 58.000 Ha, for about 4.023 Ha have destroyed without vegetation or it becomes farm of season crop. With that condition, so the area is specified as Rehabilitation zone The research is conducted with the method of survey then clarified with the method of Participatory Rural Appraisal (PRA). Analyses data used by the descriptive analysis qualitative. The result of the research can be known that there is a high resistence or threat to the society who live around the TN MB which specified with the job where mostly as a farmer ( 35,86 %) and hard farmer (38,74 %) while the most agraris 16,6 person / Ha. Mine’s land for about 0,219 Ha / KK and productive age 63,8 %. So, it can be conclude that the rehabilitation of TN MB for this time is more concentrate to the zone area of rehabilitation and the edvantage of avoiding the farm to the jungle zone and conten zone. It is also necessary that the factor of social economic not only used to formulate the zonasi but it also used as a basis for a reconstruction of Merubetiri National Park.
Pemahaman Karakteristik Hujan Sebagai Dasar Pemilihan Model Hidrologi (Studi Kasus di Das Bengawan Solo Hulu) Hadi, M Pramono
Forum Geografi Vol 20, No 1 (2006): July 2006
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The research was conducted at the Upper Bengawan Solo Catchment, which was categorized as critical catchment. The problems of flood and drought became the main issue, and need to be handled sooner, therefore it need hydrological modelling to coupe the problems. As we know that the role of rainfall as an input to the model is very significant parameter in generating output (discharge), then the objective of this research is to know the rainfall characteristics. The rainfall distribution in the research area can be known by doing the spatial analysis, especially using Kriging method. It does the rainfall mapping for a certain duration to describe the spatial rainfall distribution. It uses the rainfall data from 20 rainfall stations with 5 minutes interval recording. It does the inter-stations correlation analysis on the amount of rainfall and the distance of inter-stations. The significant level used in this study is 5%. The result shows the tendency that the more of the station number decreased, the smaller the rainfall correlation coefficient inter-stations are. It can be meant that the numbers of the rainfall stations in catchment area have optimum number of gauge. The coverage area for each station is 13 km2 when we use 5’s minute interval data. Most of the rainfall which have intensity > 30 mm/hr occur at minute 20th to 125th. As much as 17.5% of these rainfall have randomly distribution. There is a significant relationship (R2=65.2%) between daily maximum rainfall and minimum values of inter-stations correlation coefficient Base on above results it is very important to consider that in chosing the size of catchment area for hydrological modeling it should be related with its rainfall chracteristics.
Kajian Hidrogeomorfologi Mataair di Sebagian Lereng Barat Gunungapi Lawu Santosa, Langgeng Wahyu
Forum Geografi Vol 20, No 1 (2006): July 2006
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Magma activities on earth surface cause dynamic of volcanic morphology from the volcanic cone up to fluvial volcanic plain. The changing of morphology is always followed by different slope, composition and thickness of material, and break of slope. This geomorphological conditions result in groundwater emerges forming spring belt. Accordingly, wether such phenomena are also the case in the west slope of Lawu volcano is investigated in this reseach. Hydrogeomorphology approach is applied to study of the spring characteristic and distribution in the research area. The result research shows that the distribution pattern of springs in the west slope of Lawu volcano is not like spring belt perfectly, like the strato volcano generally. It is caused by erosion processes, mass wasting intensively, Lawu fault and other faults. Most springs flow on the volcanic slope and volcanic foot morphology.
Pemetaan Kualitas Udara Kota Surakarta Kadyarsi, Ibnu
Forum Geografi Vol 20, No 1 (2006): July 2006
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Emerging concentration of COx gas as an emision gases that was caused by vehicle will create that air quality degradation in urban area. Air quality mapping was needed as a based map to solved on air quality problem in urban area. The aim of this research are mapping of air quality in Surakarta Municipality and to select the cartographic symbols which optimum to represent of air quality data especially Cox for more readable and analysis. Data collecting based on field survey in some observation point that derived purposively on several roads and dense traffict. Field data plotting on the map are used in some symbols such as pie-graph, bar-graph, and text. The mentioned symbols are usual in cartography to represent of point symbol. The result of this research is distribution map of COx concentration in Surakarta Municipality. The road which has high COx concentration are cross jucntion in downtown (west side of Pasar Klewer), cross junction of Yos Sudarso street, Slamet Riyadi Street, and cross junction of Hay Lay (Wates). The used of pie-graph and bar-graph symbols produce more interesting map visually, but unfortunately the symbols cover up the information in their based map. The used of text symbol is more easy to handle for lay out, so the background object in based map is uncovere, but visually the map is not interesting.
Pemetaan Kualitas Udara Kota Surakarta Kadyarsi, Ibnu
Forum Geografi Vol 20, No 1 (2006): July 2006
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v20i1.1806

Abstract

Emerging concentration of COx gas as an emision gases that was caused by vehicle will create that air quality degradation in urban area. Air quality mapping was needed as a based map to solved on air quality problem in urban area. The aim of this research are mapping of air quality in Surakarta Municipality and to select the cartographic symbols which optimum to represent of air quality data especially Cox for more readable and analysis. Data collecting based on field survey in some observation point that derived purposively on several roads and dense traffict. Field data plotting on the map are used in some symbols such as pie-graph, bar-graph, and text. The mentioned symbols are usual in cartography to represent of point symbol. The result of this research is distribution map of COx concentration in Surakarta Municipality. The road which has high COx concentration are cross jucntion in downtown (west side of Pasar Klewer), cross junction of Yos Sudarso street, Slamet Riyadi Street, and cross junction of Hay Lay (Wates). The used of pie-graph and bar-graph symbols produce more interesting map visually, but unfortunately the symbols cover up the information in their based map. The used of text symbol is more easy to handle for lay out, so the background object in based map is uncovere, but visually the map is not interesting.
Analisis Profil Daerah Kabupaten Klaten Tahun 2002-2005 Priyono, Priyono; Susilo, Ihwan; Karyono, Karyono; Sigit, Agus Anggoro
Forum Geografi Vol 20, No 1 (2006): July 2006
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v20i1.1802

Abstract

Klaten Regency is a regency that owning very strategic situation, that is lay between 3 (three ) metropolis (Jogjakarta, Surakarta, and Semarang). This Regency is having immeasurable properties, there are agriculture area, tourism, mining, and so on. This condition is obliging that this regency have to make an inventarisation of their properties to make a profile so thisregency can make a good decision to their region especially to their peoples. This research use secondary data analisys that collected from region statistics and by collecting data from many related institution and than it can gives some resource balance of this sub-province. Topographic condition of Klaten Regency predominated with flat and landuse which is rice field areal still majority, designate that this area is compatible used for agriculture. This condition is proved with big paddy supply which reach 300 ton per year while other agriculture product just only about tens of thousand ton. Agriculture sector is a potential sector to buils but the condition is worsed by the degradation of rice field areal with 26 hectare per year and also the increasing of the amount of resident every year that is proving the high requirement of land. Besides agriculture, this sub-province is also supported with mine and tourism sector. Mining sector are stone, clay, and sand are caused by the location of this area is in volcanic hill side. Tourism sector also contribute big Region Original Income to this Regency which progressively mount every year. By 3 (three) tourism object type, this sector can contribute Region Original Income equal to 773.674.000 rupiahs and supported with hotel facility, restaurant, and accessibility which mounting every year. However, amount of terminal which in this time there is not yet supported the demand.This Regency also experience of the increasing of economic sector, that is the financial that is the amount of Foreign Capital Proyect and Nation Capital Proyect, Region Original Income , and Brotto Regional Domestic Product that designating the increasing of people level live.
Remote Sensing and GIS for Surface Water Resources in Rawa Biru – Torasi Merauke Papua Hartono, Hartono; Meteray, Barano SS; Farda, Nur Mohammad; Kamal, Muhammad
Forum Geografi Vol 20, No 1 (2006): July 2006
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v20i1.1807

Abstract

The research describe about surface water ecosystem study in Merauke Papua by using multisource and multistage remote sensing data which was splitted into two parts based on the study areas. First, it is for micro scale spatial analysis focusing on the Rawa Biru – Torasi watershed, while the second is for macro scale spatial analysis for Transfly ecoregionin the floodplain areas of Merauke. Multispectral approach was adopted for Landsat image analysis, followed by field survey on the selected areas. Auxilary data used are maps, secondary documents in order to improve understanding of the areas. Interview and discussion with related institutions (Wasur National Sanctuary, Potable Water Services, Internal Affairs Government, Forestry Service) accordingly were carried out. The research result showed that remote sensing imagery are usefull for surface water resources study. Physical condition of the Rawa Biru – Torasi watershed, vegetation analysis by using multitemporal data, wetland type, hydrological process in the floodplain were presented. Rawa Biru watershed as a resource for drinking water supply environmentaly decreased considerably due to the species invasion, with successively dominated by hydrophilla, tebu rawa, rumput pisau, dan Mellaleuca and sedimentation took place in the main body of swamp. Upper part of the watershed is actually included in the Papua New Guinea, in long water resources development scheme, it need administratively belong to one recharge areas for the watershed.

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