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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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Pengembangan Ruang Terbuka Hijau berdasarkan Distribusi Suhu Permukaan di Kabupaten Bandung Rushayati, Siti Badriyah; Alikodra, Hadi S.; Dahlan, Endes N.; Purnomo, Herry
Forum Geografi Vol 25, No 1 (2011): July 2011
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v25i1.5027

Abstract

Bandung Regency is experiencing increased of air temperature, particularly in the urban area. High air temperature in urban areas is caused by increasing built-up areas and declining green open space. Green open space should be built to lower air temperature and to create a comfortable micro climate. Green open space should be developed at locations with high air temperature to reach its efficacy. This research used spatial analysis to generate air temperature distribution map. The map was used as the basis in developing green open space. The map showed that green open spaces should be developed at several sub-districts, namely Margahayu, Margaasih, Dayeuhkolot, Baleendah, Bojongsoang, Rancaekek, Cileunyi, Pameungpeuk, and Majalaya sub-districts.
Environmentally Friendly Concept in Spatial Regulation Taryono, T
Forum Geografi Vol 6, No 2 (1992): December 1992
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v6i2.398

Abstract

Spatial order of a region include purpose of structure and interrelatedness of spatial order which as a unity of development mechanism. Spatial order can’t be part from law basic that is UUD’45 and GBHN, in order to the management can be integrated and keep the environment. Spatial order also take note of physical factor and non physical factor. Physical factor consist of soil, water, flora, and fauna. Non physical factors consist of environment, social, economic, and soon. The principle of arrangement of spatial order in a region include national region, regional and local, and a region as an administrative baoundary, that is local government authority, like province, district, subdistrict, and village. The effort for spatial ordering of the environment, for example ordering resource, arrangement of allocation and location, arrangement of environmental aesthetic  and arrangement of environmental quality.
Ruang, Lingkungan dan Wilayah: Suatu Konsep Dasar Geografi Dilahur, D
Forum Geografi Vol 5, No 2 (1991): December 1991
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v5i2.4675

Abstract

Sejarah perkembangan geografi mencatat lima sudut pandang yang berpengaruh luas dalam perkembangan pemikiran geografi yaitu, determinisme dari Friedrich Raizel, possibilisme dari Paul Vidal de La Blache, waktu dan bentang lahan dari Sauer, studi wilayah dari Hartshorne dan keruangan dari Schaefer. Kelima sudut pandang tersebut melahirkan tiga pendekatan utama dalam geografi saat ini yaitu sudut pandang keruangan, sudut pandang lingkungan dan sudut pandang kompleks wilayah. Pemhahasan tentang hakekat ruang, lingkungan dan wilayah menunjukkan bahwa ketiga sudut pandang tersebut merupakan satu kesatuan sudut pandang atau pendekatan geografi. Waktu merupakan dimensi keempat dalam geograji oleh karenanya setiap permasalahan barus dilihat dari segi dinamika keruangan, dinamika lingkungan dan dinamika kompleks wilayah.
Spatial Correlation Between Land Development Level and Vulnerability Level of Mass Movement in the Watershed of Kayangan, Kulon Progo Regency, Yogayakarta Special Region Sartohadi, Junun; Purwaningsih, Rina
Forum Geografi Vol 18, No 1 (2004)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v18i1.596

Abstract

The objective of this research were: 1) to study the degree of soil development, and 2) to study the spatial correlation between the degree of soil development and the degree of mass movement susceptibility in the research area. The sampling method applied in this research was stratified sampling. Soil mapping units were applied as strata. The sample within strata was determined according the degree of mass movement susceptibility. The degree of soil development was determined using quantitative method of color indices and proflie index. The color indices were Buntley – Westin (B – W), Harden (H), and Hurst. The profile index was determined using solum, texture, structure, and soil consistency. The degree of mass movement susceptibility map was taken from PSBA UGM (2001). Spatial correlation between the soil development map and the mass movement susceptibility map was analyzed using “error matrix”. The result of this research indicated that the degree of soil development in the research area could be classified into three classes, i.e. class 1 (weakly develop soil); class 2 (moderately developed soil), class 3 (strongly developed soil). The degree of mass movement susceptibility was classified into three classes, i.e. class 1 (low susceptibility), class 2 (moderate susceptibility), and class 3 (high susceptibility). The result of error matrix calculation between mass movement susceptibility and soil development were 9.56%; 21.96%; 30.21% for BW + Ha, Hurst, and profile indices respectively. There values showed that there were low spatial correlations between the degree of soil development and mass movement susceptibility in the study area.
The Flooding Effect from Rice Cultivation Technique on Infiltration and Water Balance Supriatin, Lilik Slamet; Basukriadi, Adi; Thayeb, M. Hasroel; Soesilo, Tri Edi Budi
Forum Geografi Vol 27, No 1 (2013): July 2013
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v27i1.5080

Abstract

Flood events are often inundated rice fields and can cause flooding to surrounding areas (the lower reaches of the river) should not be underestimated (just blame the rainfall factor alone), but should be seen also internal factors of the techniques of rice cultivation in paddy fields. The purpose of research/study was to analyze the effect of flooding on the cultivation of paddy rice to infiltration and provide alternative solutions cultivation techniques to reduce flooding. The research method in this study is a survey method with the quantitative approach. Techniques flooding in paddy rice cultivation, especially irrigated cropping pattern rice 3 times a year have resulted in the formation of plow layer tread that is waterproof (hardpan). Waterproof coating that forms on the floor of paddy (rice surface) cannot infiltrate rainwater so that if there is a high-intensity rainfall in the rainy season, rice cannot hold the rain water will overflow and cause flooding to the area around the rice fields. Techniques inundation in lowland rice cultivation resulted in flooded paddy rice growth period in a rather long time (over 2 months), so that the aggregate soil is loose and prone to erosion and landslide potential. Anticipation of floods caused by wetland can be done by making the high rice fields higher than the height of the floodwaters that ever happened to the rice field and lowering the height of standing water in the paddy fields.
Social-Economics Integration of Dualistic Settlement Environment at Urban Areas in Indonesia (Case Study in Yogyakarta City) Baiquni, Muhammad
Forum Geografi Vol 14, No 1 (2000)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v14i1.450

Abstract

Dualistic pattern of settlement is a new phenomena in some areas of Indonesian cities. Such phenomena may reate increasing tensions which lead to emerging potential onflicts among different groups. In managing such potential conflicts, it is important to study many aspects of dualistic settlements, not only in term of physical spatial pattern but also socio-economic pattern in various strate as well as various location in the urban and it surround. This research is aimed at understanding the characteristic and process of emerging dualistic sttlements in Indonesia, further this research attempt to study the pattern and the forms of socio-economic integration of the community. The research approach is aimed at understanding the characteristic and process of emerging dualistic settlement in Indonesia, futher this research attempt to study the pettern and the form of socio-economic integration of the community.
Pendekatan Hidrologi untuk Penilaian Kegiatan Pengeloiaan DAS Anna, Alif Noor
Forum Geografi Vol 8, No 1 (1994): July 1994
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v8i1.4818

Abstract

Dalam evaluasi sumber daya air sasaran wilayahnya adalah daerah aliran sungai (DAS), karena pada DAS merupakan satu kesatuan sistem aliran energi, di dalamnya terdapat input, (berupa hujan), prosesor (kondisi DAS) dan output (limpasan bersama suspensinya). Disamping itu pemantauan hasil proses yang berhubungan dengan ekosistem akan lebih mudah dilakukan. Karakter DAS ditentukan oleh kondisi lingkungan fisik, biologik dan peradaban manusia pada kawasan tersebut. Karena DAS merupakan satu sistem dimana bila ada prosesor terdapat suatu perubahan, maka akan didapatkan hasil yang berbeda pada outputnya. Dengan kata lain satu lingkungan DAS terjadi perubahan, maka segera diikuti perubahan lingkungan yang lain. Dengan dasar pemikiran di atas, maka debit aliran sebagai keluaran bersama air, desimen dan unsur hara dapat dipakai untuk mengevaluasi kondisi DAS pada saat bersangkutan. Oleh karena itu pendekatan hidrologi dapat digunakan untuk mengevaluasi pengelolaan DAS. Indikator yang biasa dipakai adalah indeks Water Regime, koefisien aliran, sediment yield dan unsur kimia bersama unsur hara yang menyertainya. Hal ini dibuktikan dengan beberapa penelitian yang telah dilakukan oleh peneliti Sri Mulat Y (1984), Sarwono (1986), M. Fachrudin (7986) dan Maryono (1990). Dari peneliti tersebut ternyata tidak semua parameter hidrologi digunakan untuk mengevaluasi pengelolaan DAS, hanya beberapa yang digunakan, namun dalam evaluasinya menggunakan data seri dengan cara melihat trend (kecenderungan) masing-masing parameter dari tahun ke tahun berikutnya. Dari hasil yang didapatkan ternyata parameter hidrologi mempunyai kecenderungan yang menurun setelah dilakukan pengelolaan DAS. Dari bukti diatas dapat ditarik kesimpulan bahwa pendekatan hidrologi dapat digunakan sebagai salah satu cara evaluasi pelaksanaan pengelolaan DAS. Namun pendekatan ini tidak dapat menunjukkan lokasi mana yang menghasilkan debit bersama suspensi dan unsur hara yang paling potensial. Di samping itu belum ada suatu kriteria yang baku guna menilai kondisi DAS, sehingga masih menyulitkan dalam analisanya.
Geospatial Assessment of Coseismic Landslides in Baturagung Area Saputra, Aditya; Sartohadi, Junun; Hadmoko, Danang Sri; Gomez, Christopher
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.v29i2.693

Abstract

Java, the most densely populated island in Indonesia, is located on top of the most seismically active areas in Southeast Asia: the Sunda Megathrust. This area is frequently hit by strong earthquake. More than 3,300 M>5earthquakesoccurred between 1973-2014. The wide range of mountainous areas and high intensity of rainfall, make several part of the island one of the most exposed regions for coseismic landslides such as Baturagung area, the Southeast mountainous area of Yogyakarta Province. An integrated method between RS and GIS was used to conduct the vulnerability assessment due to the lack of the site specific slope instability analysis and coseismic landslides data. The seismic zonation of Baturagung area was obtained based on the analysis of Kanai attenuation. The geologic information was extracted using remote sensing interpretation based on the 1:100,000 geologic map of Yogyakarta and geomorphologic map of Baturagung area as well. The coseismic landslide hazard assessment has been estimated using scoring analysis in the GIS platform proposed by Mora and Vahrson (1993) with several modification. The accomplished coseismic landslide hazard map shows medium hazard coverage in the eastern areas, in the upper slope of Baturagung area, which consists of Semilir Formation. The result provides a distinct description of coseismic landslides hazard distribution in Batuaragung area. However, it should only be the preliminary assessment of the site specific investigation especially on valuable area or asset. 
A concept of Surveying and Mapping Vulnerability and Flood Hazard (with Hydro-Geomorphological Approach) Dibyosaputro, Suprapto
Forum Geografi Vol 12, No 1 (1998)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v12i1.482

Abstract

The general event of natural process phenomena on lowland areas is flood as an effect of the overtooping stream water over natural levees and inundate the area of surrounding the river. Most of the lowland surround the rivers is used by man for settlements, agriculture land, high way, and other activities to support their life intensively. Therefore flood is not only the physical phenomena but also a socio – economic phenomena. One of the way to understand the spatial distribution of flood prone areas an be done by means of survey and mapping of the flood susceptibility and hazard using an hydro- geomorphological approach. The fluvial landform units on the lowlands reflect the effet of the geomorphological and hydrological processes in the past. Therefore those phenomena can be applied to explain the recent flood characteristics such as inundation  area, depth and flood duration, as well as flood frequencies and sources of floods. This explanation can be used as the starting point of the existing information which an be used as a basic survey and mapping of the flood suspectibility and hazard. The exiting of the interaction between man and natural event (flood) information, can also be applied as a fundament to define the hazard levels of every landform units own flood susceptibility levels.
Degradasi Hutan Bakau Akibat Pengambilan Kayu Bakar oleh Indutri Kecil Gula Kelapa di Cilacap Tumisem, T; Suwarno, S
Forum Geografi Vol 22, No 2 (2008): December 2008
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v22i2.4989

Abstract

A study on degradations mangrove forest due to firewood exploitation by coconut palm sugar home industry in Cilacap. Information on social economic aspect and respons of coconut palm sugar home industry to using fuel substitutions were collected by using a questioner. The potential of mangrove as a firewood source was estimated by quadrat method. The study has been carried out on dry and rainy season. The wood production of available 8000 ha of mangrove from Cilacap primarily Rhizophora apiculata Linn and Rhizophora mucronata Lamk were 3.249.920 m³. The results showed that the declining of mangrove was about 19,250 m² in dry season and 26,551 m² in rainy season, this was correlated with the amount of nira to be processed that was 0,782 m³ in dry season and 1,079 m³ in rainy season. Deforestation of mangrove forest due to change of mangrove zonation. Rhizophora apiculata Linn and Rhizophora mucronata Lamk will be domination Nypa fruticans that is shown superficiality to continent form.

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