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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
 60   61   62   63   64 
Distribution of Water Infiltration Rate in Ciliwung Watershed Pramono, Irfan Budi
Forum Geografi Vol 30, No 1 (2016): July 2016
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v30i1.1765

Abstract

Floods in Jakarta showed that the Ciliwung watershed and surrounding areas in critical condition. More than 50 % of land cover Ciliwung watershed is residential. Planting trees in residential areas have been insufficient to infiltrate as much water into the ground. Infiltration well is one possibility for absorbing water in residential areas. The purpose of this study was to determine the variation in the level of water absorption Ciliwung watershed and surrounding areas. The method used is overlaying analysis of the factors that determine the rate of water infiltration with geographic information system. Each of these factors gave weights and scores to obtained variations Ciliwung water infiltration rate. The results showed that the regions with the highest levels found in the upper catchment area and the city of Bogor, middle absorbtion water area was in Bogor Regency, low water absorption areas in Depok , South Jakarta , and East Jakarta . While in North Jakarta, Central Jakarta and West Jakarta the water absortion is very low level due to the shallow ground water level and very low soil permeability. Map variations in water absorption can be used as a material consideration for determining the locations of recharge wells effectively.
Spatio-Temporal Distribution of Landslides in Java and the Triggering Factors Hadmoko, Danang Sri; Lavigne, Franck; Sartohadi, Junun; Gomez, Christopher; Daryono, D
Forum Geografi Vol 31, No 1 (2017): July 2017
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v31i1.3790

Abstract

Java Island, the most populated island of Indonesia, is prone to landslide disasters. Their occurrence and impact have increased mainly as the result of natural factors, aggravated by human imprint. This paper is intended to analyse: (1) the spatio-temporal variation of landslides in Java during short term and long-term periods, and (2) their causative factors such as rainfall, topography, geology, earthquakes, and land-use. The evaluation spatially and temporally of historical landslides and consequences were based on the landslide database covering the period of 1981 – 2007 in the GIS environment. Database showed that landslides distributed unevenly between West Java (67 %), Central Java (29 %) and East Java (4 %). Slope failures were most abundant on the very intensively weathered zone of old volcanic materials on slope angles of 30O – 40O. Rainfall threshold analysis showed that shallow landslides and deep-seated landslides were triggered by rainfall events of 300 – 600 mm and > 600 mm respectively of antecedent rainfall during 30 consecutive days, and many cases showed that the landslides were not always initiated by intense rainfall during the landslide day. Human interference plays an important role in landslide occurrence through land conversion from natural forest to dryland agriculture which was the host of most of landslides in Java. These results and methods can be used as valuable information on the spatio-temporal characteristics of landslides in Java and their relationship with causative factors, thereby providing a sound basis for landslide investigation in more detail.
The Coastal Area Development Using GIS (Review of GIS Application Models) Sutanto, Prastowo
Forum Geografi Vol 10, No 1 (1996)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v10i1.516

Abstract

GIS, Geographical Information System, is a means that an be used to plan and to develop the coastal area because in carrying out the analysis this system combines the space data and their  attributes. The activities done among others the prototype development of algae cultivation and tourism ativities, the development of fish pond location, the reclamation of the Jakarta Bay, and the concept of development the floating “Keramba” for pearl oysters and white sea fish similar to sole. GIS analysis with heaviness and overlay mapping yields the appropriate map to plan and to develop the coastal area. The result of GIS analysis can be used to plan and to develop the coastal area. 
Analisis Fluktuasi Hujan dan Morfologi Sungai terhadap Konsentrasi Banjir Daerah Surakarta Anna, Alif Noor; Suharjo, S; Cholil, Munawar
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.v25i1.5033

Abstract

This research aims to analyse rain fluctuation and river morphology to flood concentration in Bengawan Solo River, Surakarta. The method of this research is field survey supported by secondary data analysis. The survey was conducted using GPS (Global Positioning System). The result indicates that high intensity rainfall in the research area happened during October till April. River flow in dry season generally decreased in accordance with the distribution of low rainfall (dry month). Whereas, river flow rates seen to increase along with the rainfall that occurs in the rainy season. Other result show that point 11-18 (location in Tanjung village district of Sukoharjo till Semanggi village district of Pasar Kliwon) very superficial which became impact of the river. The point represent floods concentration, therefore if there is rain with high quantity, the water will rise and overflow to surface, especially point 11, 13, and 16 (Tanjung, Kedunggudel, and Telukan village district of Sukoharjo). The processes that occurred at these sites are sedimentation, and lateral erosion (horizontal erosion).
Occupation Change of Farmer to Fishermen: A case in Coastal Rural Area in Gunungkidul District Ritohardoyo, Su
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.v16i1.411

Abstract

Utilization of marine resource is one of type of farmer coping with critical land in coastal 47% The consequence of this, is the change in their occupation status from the farmer to fisherman However the change does not always mains that their poverty status may also changes. This factual problem is the base for research objectives, with the main emphasis on understanding farmer motives of changing occupation to fisherman, process variation of occupation change, and the impact of this process to household incomeThe research was carried out in six coastal village of Gunungkidul Distric. Survey method was employed by collecting data from respondents. The population of respondents amounted to 341 households (HH) working as fisherman Sampling technique was proportionally simple random in which 120 HH was taken as mpondents sample. They were representazivis of Kanigoro, Pucung, Kemadang, Ngestiharjo, Sidoharjo, and Purwodadi villages. Data on socio economic structure of the household, the process of occupation change, and household income were collected by mean of structured interview. Data analysis was performed through descriptive technique in which frequencies and cross tabulation were mostly used.The research results indicate that the motive of local farmer to become fisherman are various, but the main motive (81,7%) to increase household income. The major cause of this is physical environment pressure of the area (ie. critical land and backward village). This leads fiirmer to low level of accissebility to socio-economic infiasructure, and low level of economic status or very poor category. The majority of farmer (58,3%) carried out transitional occupation befiare becoming fisherman. This encompass activities as fishing or collecting sea shell and lsea algaemn the sea front Intermediary activitis being perfimned a form of adaptation to marine environment (sea water) from agricultural land environment. This means that most farmers search and gain skill and experiences related to fishery. Occupation change from farmer to fisherman has significant impact in the betterment of income. In average, the fisherman monthly income is Rp 531,375 which is much higher than the minimum level of basic need in Yogyakarta Povince (Rp 266,870.). In the other word the occupation change from farmer to fisherman driven by motive to increasses household income is proven to be capable to statisfy the need if household economy.
Teori-Teori Geografi: Pemikiran Kearah Pengembangan Effendi, Tadjuddin Noer
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.v5i2.4677

Abstract

Sampai saat ini masyarakat gcografi masih terlibat dalam pembicaraan dan perbedaan mengenai metodologi geografi. Patut diakui usaha itu telah melahirkan pemikiran-pemikiran baru dalam metodologi. Namun, tanpa disadari perdebatan yang cukup melelahkan itu telah melemahkan, bahkan ada kecenderungan meragukan kedudukan geografi sebagai cabang ilmu. Akibatnya, pengembangan teori-teori yang amat dibutuhkan dalam ilmu pengetahuan mengalami kelambatan.
Landslide Hazards and Risks in Tanon, Sragen, Central Java Province Suwarno, Suwarno
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.v18i1.598

Abstract

The aims of this research are 1) to study and classify the landslide hazard of the study area, and 2) to evaluate the landslide risk of the research area. Field survey and laboratory analysis were used in this research. Terrain characteristic and social economic data were collected by purposive sampling. The structure of terrain unit based on landform unit map, slope map, soil map, and landuse map. Terrain parameters were divided into five classes; that were no hazard, low hazard, medium hazard, high hazard, and highest hazard classes. The risk classes were divided into four classes, that were no risk, low risk, midium risk, and high risk. Based on the landform units, soil type and the land used, the study area can be divided into 27 terrain units. The terrain units are differentiated into the landslide hazard classes and their landslide risk. In the study area there were found 5 classes of landslide hazard, namely 1) no hazard (2 terrain units); 2) low hazard (4 terrain units); 3) medium hazard (8 terrain units); 4) high hazard (11 terrain units); and 5) highest hazard (2 terrain units). Most of the high hazard class are located on hilly terrain units. Distribution of landslide risk in the study area are as follow: 4 terrain units have no risk; 17 terrain units have low risk; 4 terrain units in medium risk; and 2 terrain units have high risk. High risk are mostly located on hilly area with closely populated area.
Modelling of Community Recovery Level of Flood-Prone Area in Surakarta Noviani, Rita; Wijayanti, Pipit; Yusup, Yasin
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.v27i1.5082

Abstract

This study aimed to develop community resilience velocity model after the disaster. The study is a descriptive analysis using household survey of the flood victims. Total sample of 100 households in ten villages on the banks of the Bengawan Solo River, and is an area prone to flooding. Processing for data is using descriptive statistical analysis, correlation and regression, analysis of variance and factor analysis. There is a close relationship between the power recovered by a factor of assets, knowledge and long flood events. The two main factors affecting the dominant public resilience is a characteristic of a society of social assets, knowledge and natural assets. The second factor is the economic and financial factors, and long floods. The Resulted model level resilience from the research is Y = 0.012 X1 + 0.118 X2 + 0.394 X3 + 0.079 X4 + 0.040 X5-.002 X6. which; Y is Power Restored (speed), Ownership Financial Assets (X1), Ownership of Assets Economics (X2 ), Natural Asset Ownership (X3), Social Asset Ownership (X4), Lama flooding (days) (X5), and Knowledge (X6). Further optimization of the acceleration of flood resilience of households to do with strengthening the ownership of assets, improving the capacity of communities and reduce the threat of flooding and duration of.
Motivation and Characteristics of Poor Household on Selecting to Live at Sawahan Village, Sangkrah, Pasar Kliwon Dahroni, Dahroni; Astuti, Wahyuni Apri; Sumardi, Sumardi
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.v14i1.452

Abstract

This research tahes the title “motivation and Characteristics of Poor Household That Choosing o Live in Kampung Saahan, Kelurahan Sangkrah, Kecamatan Pasar Kliwon”. The research problem is, what is the motivation that encouraging resident aspirants who choosing Kampung Sawahan as their residences and the characteristics of poor households in terms of why do they choose Kampung Sawahan as tehir residences. The number of settlers population in Kampung Sawahan is 113 households. The research sampling was 100 household respondents. The research method used survey methods. Respondents were taken proportionally by random sampling from the population 113 households in Kampung Sawahan. Data analysis used frequency table analysis and cross table. The result of research showed that the encouraging motivation in choosing Kampung Saahan as their residences is, they feel the location is strategic enough, because it near trading centers where they work. Beside that there is s research result identifying the characteristic problems of poor households in terms of why do they chose to live in Kampung Sawahan, Kelurahan Sangkrah. The result is, their choices are based on assumptions that they can not buy a house because their poor incomes so that they rent a house from the owner.
Masalah Sumber Daya Air Sungai di Pulau Jawa Priyana, Yuli
Forum Geografi Vol 8, No 2 (1994): December 1994
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v8i2.4821

Abstract

Permasalah sumber daya air selama ini tidak hanya semakin meningkatnya jumlah air yang dikonsumsikan untuk air minum, pertanian dan industri, namun sudah masuk mengenai masalah pencemaran dan kerusakan sumber air. Tulisan ini membahas tentang sumber daya air permukaan khususnya sungai. Sungai di Indonesia selama ini banyak dimanfaatkan oleh masyarakat di sekitarnya sebagai sumber air domestik, industri, pertanian, maupun tempat pemhuangan limbah, baik limbah padat maupun cair. Tindakan masyarakat dalam memanfaatkan sumber daya air yang tidak memperhatikan keseimbangan lingkungan tersehut akan merusak hubungan antara komponen ekosistem yang akhirnya akan merusak lingkungan itu sendiri. Kerusakan lingkungan pada suatu sistem Daerah Aliran Sungai (DAS) akan berakibat pada penurunan sumber daya air sungai. Untuk itu perlu sekali diupayakan perbaikan terhadap kerusakan sumber daya air yang terpadu pada sistem DAS, mulai dari hulu sampai hilir sungai.

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