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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 14 Documents

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Search results for , issue "Vol 19, No 1 (2005): July 2005" : 14 Documents clear

Identification of Land Degradation and Method of Solution in Zone of Baturagung Hill at Gunung Kidul Regency Santosa, Langgeng Wahyu
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

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 to 40% of slope); and (3) the zone of severe degradation (within the area having slope of more than 45%).

The Ready System of Clean Water for Population in Musuk District to Respon Dry Season Priyana, Yuli; Safriningsih, Dina
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.v19i1.4566

This research about ready system of clean water in District of Musuk, Sub-Province of Boyolali. This research aim to study how ready system of clean water, research area especially of dry season. That wish to know how much amount of resident drinking water consumption at area District of Musuk. The method of research in this research is survey method. The data which collected in this research consist of primary data result of interview by 150 responded (head of house hold) and perception in field. Secondary data an obtain from governmental institution, books, other resource person and reference related to this topic of research. Intake of sample done with area of random sampling, to know the target of research to description analyses and tabulation. The result of research indicate that ready system of clean water at dry season most relying on rainwater with accommodating the rainwater at pools, besides to overcome water of water supply of rain of society buy water of springs pass tank truck, small to partly use surface water and also of PDAM. Water consumption at mean dry season 48.47 liter/day/capita. But at high area (volcanic slope) its slimmer consumption in comparing plain area of Fluvial foot/feet of Volcano.

Spreading of Groundwater Contamined by Leached in the Surrounding Area of Piyungan Landfill Bantul District, Yogyakarta Province Sartohadi, J; Widyastuti, M; Lestari, I. Sri
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.v19i1.4572

The objectives of this research are: (1) to study the characteristics of aquifer, distribution and chemical types of groundwater in the research area; (2) to measure the consentration of major elements (HC03-, Cl-, S042-, Ca2+, Mg2+, Na+, K+) and minor elements (S2-, NH4+) as indicators of leached contamination in the groundwater; and (3) to establish the spreading of contamined groundwater by leached. The grid sampling method was applied in this research. The grid dimension is 1 cm x 1 cm measured in the 1:25000 scale of Indonesian Topographic Map. The groundwater samples were taken randomly within the grid. Not the whole study area covered by the map was grided but only the surrounding area of Piyungan Landfill and the area lower than Piyungan landfill were grided. The groundwater samples were taken during the rainy season because during the rainy season there were more leached produced from Piyungan Landfill. The groundwater samples were examined their physical and chemical qualities using the legal standard quality in Yogyakarta Province. Spatial analysis using maps and graphics were applied to examine the spreading of contimined groundwater by leached. The spreading of unconfined groundwater in the study area was not equal distributed but it seems to be controlled by the landforms. There were an increasing elements content of Cl-, Ca2+, Mg2+ and HCO3-, as well as dissolved oxygen, NO3- and S2- in the groundwater contamined by leached. The zonation of the spreading of groundwater contamined by leached was categorized into three class, i.e., central (location of landfill, well number 1 0), transisional (well number: 11, 12, 13, 15), and primary (well number: 8, 14, 16, 17, 25, 26) zones. The zonation of groundwater matched with the analysis of groundwater quality by the distance from the Piyungan Landfill.

Critical Land Detection using Remote Sensing Device and Geographic Information (Case Study of Critical Land Basic of Catchments Area, Alang, Wonogiri) Harjadi, Beny
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

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.

Analysis of Susceptance Storey Level Damage of Coral Reefs in Territorial Water of Archipelago in Karimunjawa by Using Geographical Information System Jumadi, J; Priyono, Kuswaji Dwi
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.v19i1.4568

This research aim to determine susceptance storey level damage of coral reefs in Territorial Water of Archipelago of Karimunjawa. Method which used in this research is special data analysis which in the form of data of sekunder by using Geographical Information System. Pursuant to analysis known that research area there are six especial stressor which menace coral reefs for example: Port, Airport, Center Dive, Coastal Wisata, Resident, and Appliance Catch. Pursuant to spasial analysis which have can be determined that equal to 69.50% from entire coral reefs research area in a condition do not susceptance, namely there are in territorial water region of Island: Kembar, Parang, Kumbang, Katang, Nyamuk, Krakal Besar, Krakal Kecil, Geleang, Burung, Bengkoang, Menyawakan, Cemara Besar, Cemara Kecil, Sintok, Gundul, Cendikian, Genting, Seruni, and Sambangan. As for the rest equal to 30.50% enough natural rentan of damage, there are at territorial water of islands owning high resident activity storry level, namely around in Island: Kemujan, Karimunjawa, Menjangan Besar, and Menjangan Kecil.

Identification of Settlements Quality in Pekanbaru Slums Sunarhadi, M. Amin; Dahroni, D; Priyono, P
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.v19i1.4570

One of human basic needs is housing with high competitive situation caused increasing need of housing, spatial restriction, and economics factors. These influence to decreasing of housing quality then consequence to slums settlement. Undistributed population at Pekanbaru shown at Tangkerang Utara, Teluk Leok, and Meranti Pendak where slums are growing up. The aim of this stucdy is identifying slums area in Tangkerang Utara, Teluk Leok, and Meranti Pandak with spatial, complexity, and environmental approach. Data collected as primary and secondary data. Then are 28 indicators to identified slums area and classified quality of settlements. Results of this study shown that Tangkerang Utara have Medium Quality with typology as slums at center city, Teluk Leok have Low Quality with typology as slums at river side, and Meranti Pandak have Medium Quality with slums at urban fringe. This study also found that slums in Pekanbaru have spatial associated with low housing quality, community with low economic capacity, high density of population and building, bad sanitation, susceptible of fire and natural hazard, weakness of spatial planning implementation, and insufficient ratio of environmental settlement infrastructure. In pekanbaru, slums growth as continuous process.

The Effectiveness of Mahogany (Swietenia macrophylla) Plantation Forest on Controlling Erosion and Runoff Paimin, P
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.v19i1.4565

Ecosystem of forest has been considered the most effective measures in controlling soil erosion and runoff. However, man-made forest or plantation forest is frequently disturbed that causing susceptible to land degradation, especially by erosion. The role of forest to protect soil from erosion forces is not only played by individual forest stand itself but also its community. Composition of vegetation community always change dynamically depending on the forest management system applied and the age of plant. To determine the effectiveness of mahogany forest plantation during its growth on controlling soil erosion and runoff, a study was conducted at mahogany plantation forest area of Gundih district. Three different ages of mahogany (1, 4, and 8 year old) were selected as observation plots. Soil erosion and runoff measurements were carried out on a small plot procedure of 4m x 22.1 m size. Whereas, observations on main tree of mahogany characteristics and its undergrowth vegetationâs were also accomplished within this area. The results indicated that the number and kind (species) of vegetation community of mahogany changed dynamically and tended to decrease as the main forest stand became older. The older mahogany produced less both soil erosion and surface runoff. Soil erosion level on vegetation community of mahogany plantation, during two months observations, decreases as much as 39.3%, 9.8%, and 5.2% respectively for1, 4, and 8 year old of mahogany comparing to bare land (control plot) of 112.6 kg/plot (12.7 ton/ha). Additionally, surface runoff lowered at the mahogany age of 4 and 8 year as high as 33 %and 52% respectively comparing to control one, but surface runoff at the mahogany of 1 year old had no different from the control one. The main role of this condition was played by thick litter at 8 year old of mahogany, and by creeping grass, and other shrub at 4 year old of mahogany.

The Effectiveness of Mahogany (Swietenia macrophylla) Plantation Forest on Controlling Erosion and Runoff P Paimin
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.v19i1.4565

Ecosystem of forest has been considered the most effective measures in controlling soil erosion and runoff. However, man-made forest or plantation forest is frequently disturbed that causing susceptible to land degradation, especially by erosion. The role of forest to protect soil from erosion forces is not only played by individual forest stand itself but also its community. Composition of vegetation community always change dynamically depending on the forest management system applied and the age of plant. To determine the effectiveness of mahogany forest plantation during its growth on controlling soil erosion and runoff, a study was conducted at mahogany plantation forest area of Gundih district. Three different ages of mahogany (1, 4, and 8 year old) were selected as observation plots. Soil erosion and runoff measurements were carried out on a small plot procedure of 4m x 22.1 m size. Whereas, observations on main tree of mahogany characteristics and its undergrowth vegetation’s were also accomplished within this area. The results indicated that the number and kind (species) of vegetation community of mahogany changed dynamically and tended to decrease as the main forest stand became older. The older mahogany produced less both soil erosion and surface runoff. Soil erosion level on vegetation community of mahogany plantation, during two months observations, decreases as much as 39.3%, 9.8%, and 5.2% respectively for1, 4, and 8 year old of mahogany comparing to bare land (control plot) of 112.6 kg/plot (12.7 ton/ha). Additionally, surface runoff lowered at the mahogany age of 4 and 8 year as high as 33 %and 52% respectively comparing to control one, but surface runoff at the mahogany of 1 year old had no different from the control one. The main role of this condition was played by thick litter at 8 year old of mahogany, and by creeping grass, and other shrub at 4 year old of mahogany.

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

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%).

The Ready System of Clean Water for Population in Musuk District to Respon Dry Season Yuli Priyana; Dina Safriningsih
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.v19i1.4566

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Contact Name
Jumadi

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Journal Mail Official
forgeo@ums.ac.id

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Location
Kota surakarta,

Jawa tengah

INDONESIA