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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
 90   91   92   93   94 
Monitoring dan Evaluasi Daerah Aliran Sungai dengan Penginderaan Jauh dan Sistem Informasi Geografis Beny Harjadi
Forum Geografi Vol 23, No 2 (2009): December 2009
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v23i2.5007

Abstract

The characteristics of the landcover of a territory were really influenced by the condition biophysical and social his community’s economics. To the territory with the high rainfall had a rare population, the pattern of the landcover was more dominant to the annual crop, conversely to the high rainfall territory had a solid population the pattern of the land cover was more dominant in crops. Whereas to the dry territory (low rain) with the rare inhabitants, the pattern of his land cover was dominated the meadow and the crop kept dry. The requirement would the latest data, the high accuracy, to the area that was wide to monitor the change in one unity of the management of watershed. This research aimed at studying the application of remote sensing (RS) and the geographical information system (GIS) to monitoring and the evaluation of watershed. Physical conditions for the land that was dominated by the land form of the mountainous land and hills with the slope that was steep until precipitous, caused the territory around Grindulu Sub Watershed the potential would the occurrence of the landslide. This landslide incident was also supported by the rock situation that has begun to go mouldy resulting from the disintegration by the hot influence and rain as well as decomposition. Although having some areas of the land that was dominated the bare-rock and the rock-outcrop, but because the land cover was relatively dense in the area of mountains and hills then year round the Grindulu river had not been dry.
Masalah Permukiman Kota: Permukiman Kumuh, Perumnas, dan Real Estate S Sudaryono
Forum Geografi Vol 9, No 1 (1995)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v9i1.521

Abstract

Perumahan sebagai salah satu komponen infrstruktur akan menjadi tema yang sangat penting dalam kerangka baik isue global maupun nasional, terutama dalam kaitannya dengan pembangunan industri pada kota-kota di Indonesia di masa datang. Studi ini akan membahas permasalahan dari tiga tipe deliveri perumahan di Indonesia yang cukup menonjol yakni: 1) pemukiman kumuh, 2) perumnas, dan 3) real estate. Secara singkat dapat dikatakan bahwa munculny pemukiman kumuh di kota-kota di Indonesia dan negara-negara berkembang pada umumnya adalah berakar pada gagapnya kota-kota tersebut dalam menyiasati gelombang global industrialisasi yang dibawa oleh revolusi industri. 
Critical Land Detection using Remote Sensing Device and Geographic Information (Case Study of Critical Land Basic of Catchments Area, Alang, Wonogiri) Beny Harjadi
Forum Geografi Vol 19, No 1 (2005): July 2005
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v19i1.4567

Abstract

Work criteria and indicator of Catchments Area need to be determined because the success and the failure of cultivating Catchments Area can be monitored and evaluated through the determined criteria. Criteria Indicators in utilizing land, one of them is determined based on the erosion index and the ability of utilizing land, for analyzing the land critical level. However, the determination of identification and classification of land critical level has not been determined; as a result the measurement of how wide the real critical land is always changed all the year. In this study, it will be tried a formula to determine the land critical/eve/ with various criteria such as: Class KPL (Ability of Utilizing Land) and the difference of the erosion tolerance value with the great of the erosion compared with land critical level analysis using remote sensing devices. The aim of studying land critical level detection using remote sensing tool and Geographic Information System (SIG) are:1. The backwards and the advantages of critical and analysis method2. Remote Sensing Method for critical and classification3. Critical/and surveyed method in the field (SIG) Collecting and analyzing data can be found from the field survey and interpretation of satellite image visually and using computer. The collected data are analyzed as:a. Comparing the efficiency level and affectivity of collecting biophysical data through field survey, sky photo interpretation, and satellite image analysis.b. Comparing the efficiency level and affectivity of land critical level data that are found from the result of KPL with the result of the measurement of the erosion difference and erosion tolerance.
Groundwater Characteristic and Fresh Water Supplying System of the East Slope Merapi Volcano Yuli Priyana; Agus Anggoro Sigit
Forum Geografi Vol 16, No 1 (2002)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v16i1.416

Abstract

slope of Merapi Volcano in Boyolali. The aims of this study are first to know the characteristic of groundwater in every morphological unit, second to know supplying system of fresh water in every each unit.The method used is survey method. The sampling use to know the characteristic groundwater both quality and quantity of the water, and supplying system of fresh by using area sampling. As basic of stratification of its region is morphological unit. Analysis method used is tabulation, laboratory analysis, and graphic analysis to describe its space.The result of the study shows that the quality of groundwater in every morphological unit is good enough, but in general the contents of element Ca, Mg, N03, CI, SO4, HCO3 shows that the lower the region is, the higher the content of the element . But if it is seen from the depth of its groundwater, so that the fluvial volcanic plain is the shallowest, then the fluvial volcanic foot plain and the last the volcanic foot area. Supplying system of fresh water, which derived from the dominant of well water, is especially used in morphological unit in fluvial "volcanic foot plain. The spring water is used by the population in the morphological unit in volcanic foot plain and then in morphological unit of fluvial volcanic foot plain. The population uses much rainwater in the morphological unit of volcanic foot plain.
Identifikasi Medan untuk Keterlintasan Rel Kereta Api antara Gundih–Karangsono Kabupaten Grobogan Imam Hardjono
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.
Mapping of Marine Area Boundary of Central Java Province using Differential GPS Survey Method Nurul Khakhim; Dulbahri Dulbahri; Barandi Sapta Widartono
Forum Geografi Vol 16, No 2 (2002)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v16i2.603

Abstract

The development of GPS (Global Positioning System) technology which is measuring position by satellite, has taken a great metodology aspect of position on surface of earth. The standard GPS measurement takes an absolute positioning. To develop the accurate abd precision, it is used the differential method. Differential GPS measurement can be much more accurate than standard GPs measurement, wherever the method uses one receiver as base station/ reference and the other receiver as field station in a same time. That could reduce and eliminate drifts and errors. The aim of research is use the differential method of GPS survey to map the ocean boundary of Central Java Province. Physical data which neede are base line and base point. Base line were taken from obsrvation of longtime Landsat TM image band 5th based o opinion that shore line are clear seems and easy to interpreted at 10.00 am according to Landsat satellite reording time and the lowest tide time as base line. Location of lowest tide were selected at conspicuous place, such as cape, dry shore, etc and measured base on the BPN (Badan Pertahanan Nasional) base/ reference point (orde 2 and 3) on the district, with GPS differential metod. Twelve miles distance from base line of ocean bounddary is belong to province and 1/3 of is belong to district. Characteristic of marine landform as cape, bay, estuaria, attended to international rules. Final report of the research were 1) oean boundary map of Center Java Province, 2) the location and base/ reference points (orde 2 and 3) that could be reference as a base point differential method.
Aspek Sumberdaya Manusia dan Kontribusinya dalam Menciptakan Kerusakan Lingkungan Retno Woro Kaeksi
Forum Geografi Vol 6, No 1 (1992): July 1992
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v6i1.4699

Abstract

Lingkungan hidup merupakan kesatuan ruang dengan semua benda, makhluk hidup, termasuk di dalamnya manusia dan perilakunya yang mempengaruhi kelangsungan perikehidupan dan kesejahteraan manusia serta hidup lainnya. Dalam tulisan ini pembahasan menitiberatkan pada pengaruh sumberdaya manusia terhadap lingkungan. Sumberdaya manusia sangat besar sekali pengaruhnya terhadap lingkungan, karena perilaku manusia dapat mempengaruhi tata kehidupan yang ada dari alam. Sumberdaya manusia akan berpengaruh positip terhadap lingkungan alam apabila sumberdaya manusia tersebut punya pengetahuan tentang lingkungan, namun kita ketahui bersama bahwa tidak semua sumberdaya manusia yang ada punya pengetabuan tentang lingkungan. Pengetabuan manusia tentang lingkungan beraneka ragam tingkatan dengan demikian sumberdaya manusia dapat berpengaruh negatif terhadap lingkungan alam yaitu akibat dari perilaku manusia yang sedikit mengerti tentang lingkungan dan lebih parah lagi apabila manusia tersebut tidak punya sama sekali pengetabuan tentang lingkungan. Jelas di sini bahwa terpelihara atau rusaknya lingkungan alam itu tergantung dari sumberdaya manusia dan IPTEK. Dengan demikian untuk menjaga agar lingkungan alam tetap terpelihara dengan baik perlu pemahaman yang benar tentang IPTEK oleh manusia.
The Development of Coastal and Marine Suharto Widjojo; Suharjo Suharjo
Forum Geografi Vol 13, No 2 (1999)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v13i2.457

Abstract

Planning and development process of oastaland marine resources tends centralized and adopted top down policy, without any active participations from coastal and marine communities. In order to reach integrated and sustainable development in coastaland marine areas, people should have both complete and up to date information, so that planning and decision making for all aspect of the environment can be done easily. People should give a high attention of surveis, mappings, as well as science and technology of coastal and marine sectors, in order to change the paradigm of development from inland to coastal and marine. Moreover, people should give high attention of potential resources of coastal and marine areas.
The Role of Vegetation in Controlling Air Temperature Resulting from Urban Heat Island Siti Badriyah Rushayati; Annisa Dyra Shamila; Lilik Budi Prasetyo
Forum Geografi Vol 32, No 1 (2018): July 2018
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v32i1.5289

Abstract

Urban Heat Island (UHI) is a phenomenon exhibited by many worldwide cities. Cities, which exhibit UHI, possess higher air temperature as compared with air temperature in the surrounding areas. However, existing UHI profiles are those occurring in subtropical areas which are, of course, very much different from those in tropical cities. Therefore, the objectives of this study are to describe the UHI’s profile and the role of tree vegetation in controlling and reducing air temperature in a tropical region’s urban areas and, particularly, in DKI Jakarta. In this study, we carried out a spatial analysis of land cover and the distribution of air temperature. In this regard, we based our analysis of the potency of tree vegetation in reducing air temperature in UHI’s profile on the distribution of air temperature in various types of land cover which extended from north to south and from east to west. The ranges of air temperature in land cover in the form of built-up areas were 29.2-39.5 ⁰C, non-tree vegetation 28.6-35.6 ⁰C, and tree vegetation 27.0-35.7 ⁰C. Accordingly, tree vegetation has the highest potential to reduce air temperature and to overcome the phenomenon of UHI.
Estimate of Changes in Carbon Stocks Based on Land Cover Changes in the Leuser Ecosystem Area (LEA) Indonesia Dedi Hermon
Forum Geografi Vol 29, No 2 (2015): December 2015
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v29i2.1487

Abstract

This research aimed at designing the model of land cover changes in 1990 and 2014, and estimating carbon stock changes in each land cover in Leuser Ecosystem Area (LEA). The spatial model of land cover changes was analyzed by interpreting Landsat 5 TM imagery in 1990 and Landsat 7 ETM+ imagery in 2014 with ERDAS 9.1 and Land Change Modeller (LCM) in Idrisi TerrSet v.18. The analysis of land area changes (ha) in each land cover from 1990 to 2014 used ERDAS 9.1 with tools Interpreter (GIS Analysis-Matrix). Systematic survey method was employed in order to analyze carbon stocks. The sampling technique was stratified purposive composite sampling which used plot technique. The estimate of tree biomass used allometric equation. The estimate of carbon stocks in each land cover in 1990 was measured based on the total of carbon stocks in 2014 which was conversed with the areas of each land cover in 1990. Spatial model of land cover changes in LEA in 1990-2014 showed the changes of area in each land cover which caused the changes of carbon stocks in each land cover as well.

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