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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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The Distribution of Rural Settlement Environmental Quality (Case at Bantul, DIY) Su Ritohardoyo
Forum Geografi Vol 11, No 2 (1997)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v11i2.492

Abstract

The housing environment problem is the inreased population and housing density  in certain areas, as a consequence of the high population growth rate. This situation has brought about the unavailability of the existing public facilities. Such as the evironmental problem is also faced by Bantul regency. Starting from those stated environment problems, this study has in phased its general objectives on to comprehend the variation of housing environmental quality within various topographical, and to comprehend environment factors influencing the housing environmental quality within various topographial background.this study employs so-called sampling technique. Area sampling is carried out aording to topographical condition. Ten villages are randomly selected representing the sampling areas. The number of respondent is 300 households, selected proportionally based on the area stratification. Primary data is collected direct communication with informants are key persons. Data analysis employed simple correlation technique, multiple regression analysis, and one way variance analysis. The study reveals that differences in topographical characteristics are strongly associated with the differences in the quality of housing environment. The level of village development is also the main variable determining the quality of housing environment. A significant different of housing environment quality both among various topographical zones and various level of village development is reported. The achievement of programs oriented to village environment improvement is varying according to the distribution of village on the topographical zone. A greater success is commonly achieved by villages located in the upland and low land than those in the hilly areas. The social-economic condition of the dwellers is determining the quality of housing environment. Nevertheless, differences in the contribution of various variables to housing environment are encountered. In the whole areas, whether it is lowland, hilly or uplands areas, the family inome to be the first important facctor determining the housing environment quality.
Analisis Proses Degradasi Lahan dan Dampaknya Terhadap Produktifitas Lahan Pertanian di Kabupaten Klaten Agus Anggoro Sigit; Suharjo Suharjo
Forum Geografi Vol 21, No 2 (2007): December 2007
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v21i2.10174

Abstract

The aim of this research are : (1) identity the process of land degradation happened in the study area; (2) evaluation of agriculture land productivity with land degradation process in the study area; (3) analysis impact process of land degradation to agriculture land productivity in the study area. This research using survey method and spatial analysis by application of Geographical Information Sistem (GIS).According to data analysis, obtained by the following research result are: (1). Have been happened by process of land degradation in regional part of the study area which tend to degrade quality of land resources by type natural process influence (subsidence, slide, crack) and anthropogenic process (making of brick). Subsidence happened in Gantiwarno; crack in Gantiwarno and Bayat; slide in Bayat. Making o brick a lot of happened in Jogonalan, Ngawen, Jatinom, Karanganom and Ceper; (2). Region with compatibility ‘harmony’ in the study area take of area for the width of 28930,10 Ha or 44,13 % (regional half almost Klaten District of productivity of its rice crop as according to its land suitability); ‘harmony (-)’ taking of area for the width of 2973,15 Ha or4,53 % (there are partial; a little region in Klaten District which manifestly do not good for effort to agriculture of rice crop, specially the paddy); ‘not harmony (+)’ taking of area for the which of 7929,25 Ha or 12,10 % (there are some region in Klaten District bad its of land condition, but its productivity is goodness); ‘not harmony’ taking of area for the which of 25724,10 Ha or 39,24 % (there are region with big enough area in Klaten District which to make a effort of agriculture of its rice crop not yet been done in an optimal fashion). Region with compatibility ‘not harmony’ need deeper attention of its land management; (3). Land degradation of most be happened to regions with compatibility status ‘not harmony’. Although is not be absolute in character, but this matter represent and existence indication of s possibility of influence of land degradation to lowering mount land productivity to rice crop in the study area. Land degradation at region of have compatibility status  ‘harmony’ as in Gantiwarno (in this time) reality not yet affect its influence to level of land productivity for the rice crop.
Sistem Akuifer dan Potensi Airtanah Daerah Aliran Sungai (DAS) Opak Setyawan Purnama; Suyono Suyono; Budi Sulaswono
Forum Geografi Vol 21, No 2 (2007): December 2007
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v21i2.2356

Abstract

Opak River Basin is an area with high concentration of settlement. Generally, the settlement use groundwater as a water source. Variation of groundwater condition cause differentiation of water usage in some regions. There are two objectives of this research. First, to determine aquifer system in the research area and second, to calculate the groundwater potential in each aquifer system. To achieve these objectives, aquifer system is determined base on its geology and geomorphology, whereas groundwater potency is calculated by static and dynamic approach. As a result, show that the aquifer system in Opak River Basin can be distinguished into seven aquifer system. There are The Upper Merapi Aquifer System, The Middle Merapi Aquifer System, The Lower Merapi Aquifer System, Baturagung Range Aquifer System, The Aquifer System of Baturagung Range Foot Slope, Sentolo Hill Aquifer System and Sanddune Aquifer System. Among the seventh aquifer system, The Middle Merapi Aquifer System, The Lower Merapi Aquifer System and The Sanddune Aquifer System have high productivity. Sentolo Hill Aquifer System and The Aquifer System of Baturagung Range Foot Slope Aquifer have low productivity, whereas The Baturagung Range is categorized as non akuifer.
Pengaruh Topografi dan Kesarangan Batuan Karbonat terhadap Warna Tanah pada Jalur Baron-Wonosari Kabupaten Gunungkidul, DIY Djoko Mulyanto; S Surono
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.v23i2.5010

Abstract

Western part of the East Jawa Southern Mountains, which is distributed from Parangtritis, Yogyakarta to Pacitan Bay is the Gunung-Sewu Hills. The carbonate rocks on the Baron-Wonosari transect has some litofacies, and the soils overlying the rocks show some color varieties. Topography of Baron-Wonosari transect can be divided into two areas: southern part (Baron-Mulo) and northern part (Mulo-Wonosari). The southern part is a hilly land, whereas the northern part is a lowland plain. Soils on the southern part are dominated by red soils group, whereas on the northern part dominated by black soils group. The phenomenon is very interesting to be studied. The aim of research was to study relationship of soil colour with topography and pores of underlying carbonate rocks. Methods consist of landform especially topography observation, and soil colour by Munsell Soil Colour Chart, whereas laboratory analysis namely micro porosity and geochemical of carbonate rock. The results showed that micro pores of rocks have no effect to the soil colour formation. However, secondary pores (macro and mega) be suggested influent on red soil formation. Concentration of iron (Fe) and mangan (Mn) elements of carbonate rock have no effect on the formation of soil colour. Topography and rock secondary porosity be estimated have a role as controlling factors on the formation of soil colour by leaching process mechanism. An area, which has a high leaching capacity tend to be found much of red soils, whereas an area which has a low leaching capacity will be formed black soils.
Perkembangan Daerah Perkotaan Ditinjau dari Aspek Hidrologi S Sudarmadji
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.v9i1.524

Abstract

Perkembangan daerah kota secara fisik ditandai dengan meluasnya wilayah kota dan bertambahnya daerah permukiman baru di sekitarnya. Di sisi lain perkembangan kota menyebabkan dampak negatif pada kondisi hidrologi, baik yang kuantitas maupun kualitas. Perluaasan daerah kota sering menyebabkan banjir dan genangan di daerah kota itu sendiri, yang disebabkan oleh meningkatnya koefisien aliran serta tidak mempunyai saluran drainase untuk menampung limpasan yang terjadi. Perkembangan kota menyebabkan kebutuhan air meningkat untuk penyediaan air di daerah kota tersebut. Air yang digunakan berasal dari berbagai sumber air, baik air permukaan maupun airtanah, yang sifatnya terbatas. Aktivitas penduduk kota menghasilkan limbah yang dibuang ke dalam lingkungan, yang dapat menemari air permukaan maupun airtanah. Di pihak lain airtanah masih merupakan sumber yang utama untuk penyediaan air di daerah kota. Perkembangan daerah kota dapat mempengaruhi kondisi hidrologi baik kuantitas dan kualitasnya, yang hal ini dapat dijadikan pertimbangan dalam perkembangan dan pengembangan kota.
Identification of Land Degradation and Method of Solution in Zone of Baturagung Hill at Gunung Kidul Regency Langgeng Wahyu Santosa
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.v19i1.4571

Abstract

Baturagung hill is a folded hill range consisting mainly of Tertiary volcanic rocks which have been undergoing severe faulting, jointing and weathering. Lies on the altitude between 200 and 700 meter from see level, the area is characterized by sloping to steep relief with 30% to 40% of slope, and shallow soils with scattered outcrops. Such geomorphological setting has made the area subject to intense soil erosion and masswasthing. Mining activates has also been accounted for the explanation of the current heightened land degradation in the area. The present paper, accordingly, is intended to identify the land degradation by considering mass movement, bare land, and mining activity parameters. The present paper founds that the Baturagung hill can be divided into three zones, namely: (1) the zone of no to low degradation (hill slope and inter-hill valley); (2) the zone of high degradation rate (within the area having 30 40% of slope); and (3) the zone of severe degradation (within the area having slope of more than 45%).
Potential Economic Losses Due to Tidal Inundation and Flood at Semarang City Ifan R Suhelmi; Achmad Fahrudin; Ferdinand Hariyanto Triwibowo
Forum Geografi Vol 28, No 2 (2014): December 2014
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v28i2.428

Abstract

Coastal city of Semarang is susceptible to the impact of coastal hazard due to its flat topographic condition. Various environmental problems are faced by Semarang involve tidal inundation, land subsidence, and floods during rainy season. This study was conducted to examine the potential economic losses caused by the sea level rise phenomenon. Distribution of inundated area mapped using Digital Elevation Model and Land Subsidence data. The Scenarios of International Panel on Climate Change (2007) sea level rises used to build a model of inundated area that notes by 2030 the rise of sea level rise at 13.4 cm. The inundated map was overlayed with landuse map to calculate the potential economic losses. The results show that the inundated area that occurred in 2030 was 1,718.2 ha with the potential economic losses Rp. 6,130 trillion. With the land subsidence scenario that happen at the area, inundated area increased to 5,171.3 ha with the eonomic potential loss about Rp. 28,724 trillion.
Aplikasi Model SMAR pada Dua DAS Identik I Indarto
Forum Geografi Vol 26, No 1 (2012): July 2012
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v26i1.5048

Abstract

This paper shows the evaluation process (calibration and validation) of SMAR (The Soil Moisture Accounting Rainfall-Runoff) model at two identical catchment areas (Rawatamtu and Kloposawit) in East Java – Indonesia. Daily discharge, rainfall data and meteorological data were collected from measurement stations located at the catchments areas. Potential evapotranspiration (PET) was calculated from meteorological data extracted from existing stations located inside of the catchments. Calibration was conducted for periods of: 1991 to 1994, while validation was tested for periode of: 1995 to 2000. Model performance was evaluated by means of: (1) Nash-Sutcliffe coefficient, (2) correlation coefficient and (3) graphical comparation of calculated and measured flow. The result show the Nash-Sutcliffe coeffient = 0,73 and correlation coefficient = 0,86 for calibration period at Rawatamtu, while the same coefficients for Kloposawit are 0,54 and 0,74. Validation periode produce Nash-sutcliffe and correlation coefficients = 0,35 and 0,64 for Rawatamtu. While for Kloposawit the values are 0,48 and 0,81.
Land Tenure and Farmers Income Distribution (Case Temon and Keduang Watershed) S Andi Cahyono; Nana Haryanti
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.v16i2.606

Abstract

Land authority and imbalance of income distribution are always be an interesting issue for an importance role of land in society. It is interesting and necessary to find out how contribution of agricultural sector to farmer income and what effect of land authority imbalance to income distribution. This research was conducted at Temon and Keduang sub watershed. Survey method was adapted to collect the field data. Afterward, the collected data was analyzed quantitatively. The result indicated that the contribution of agricultural sector to farmer income at Temon sub watershed (69.39%) was hhigher than at Keduang sub watershed (59.11%). This showed that narrow in land authority will be increasing the contribution of agricultural sector to total income. It related to diversify efforts of land using. Imbalance of land authority not always affected the income imbalance, caused by development of non agricultural sector. Land access only was unfeasible to be an indicator of farmers household income level without considering the biophysics condition and non agricultural sector growth development.
Perbaikan Irigasi dan Kehidupan Petani (Studi Kasus Irigasi dan Perubahan Sosial Ekonomi di Desa Bugo, Jepara) Yuli Priyana
Forum Geografi Vol 7, No 1 (1993): July 1993
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v7i1.4794

Abstract

Penelitian ini bertujuan untuk mengetabui kondisi irigasi serta pengaruh perbaikan irigasi terhadap perubahan sosial masyarakat desa Bugo, terutama terbadap penguasaan lahan, pola tanam, pendapatan, dan penyerapan tenaga kerja serta hubungan kerja pada bidang pertanian. Pendekatan yang dipergunakan adalah pendekatan kualitatif, dengan pendekatan ini diharapkan akan mendapatkan informasi yang diharapkan, guna menunjang pembahasan penulis berusaha mendapatkan data kuantitatif yang relefan. Dari hasil penelitian ini diketabui bahwa petani pada desa Bugo masih banyak yang merupakan petani tradisional, artinya mereka masih enggan untuk menerima teknologi yang baru, lebih suka pada cara-cara yang biasa dilakukan oleh pendabulunya. Pada perbaikan irigasi menegemen dan saluran sekunder masih kurang sempurna sehingga air kurang biasa merata penyebarannya pada daerah oncoran. Pegaruh yang timbul pada masyarakat yakni; terjadinya perubahan pola tanam dari padi-polowijo-polowijo menjadi padi-padi-polowijo, dari perubahan tersebut secara tidak langsung juga berpengaruh positif terbadap pendapatan rumah tangga petani. Dengan petani-petani tiap bektarnya bertambah, ternyata tidak terjadi polarisasi penguasaan lahan pada petani kaya, dari 142 petani didapatkan 38.7% dari jumlah tersebut petani miskin menguasai 17.2% luas lahan. Hubungan kerja pada petani juga belum nampak adanya komersialisme, hanya saja ada kecenderungan sebagian dari mereka memanenkan hasil panenannya kepada “pengedos”, dan sebagian besar masih dipanenkan pada tetangga dengan sistem “derep”. Tanaman padi ternyata banyak menyerap tenaga kerja dari pada tanaman polowijo pada daerah tersebut. Usaha sektor non pertanian pada daerah tersebut yang berkembang adalah usaha industri rumah tangga pangan, pada usaha ini ternyata juga cukup menyerap tenaga kerja dan memberikan penghasilan pada penduduk yang cukup lumayan.

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