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Journal : Forum Geografi

Outburst Flood Simulation Model for Optimizing the Solo River Floods Emergency Response Activities Priyana, Yuli; Priyono, Priyono; Anna, Alif Noor; Sigit, Agus Anggoro
Forum Geografi Vol 28, No 1 (2014)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to develop flood inundation based on several flood level. The results of this study are: (a) land use in the study area is divided into (1) urban area (the Business Area) which includes regional administrative center, shopping area, and office area, (2) residential areas (single home region, the region multi- unit house (residence), settlement areas and apartments), (3) industrial estate (industrial estates are less dense and dense industrial area), (4) the surface area covered with vegetation (forest - thicket, meadow area, and the area of land productive rice fields and fields), (5) the area of open land and vacant land that is intended (the city park , cemetery and park area, and (6) transportation area and the pavement surface area (area train station and bus terminal region), (b) the preparation of spatial database in this study in the form of data or data vector altitude of Digital Elevation Model (DEM). District of Jebres there are 56 points of elevation and District of Pasar Kliwon there are 48 points of elevation. Elevation of the study area ranged from 88,9 mpdal up to 127.65 mdpal and (c) the higher the flood inundation scenarios impact on land use in the study area are also getting bigger. Most obvious impact under scenario 2 m area of 296 601 m , while the smallest impact under scenario 1 m with an area of 77 693 m 2 2 impact. Extensive simulation results based on the total impact amounts to 544 756 m.
Analysis Landslide Hazard in Banjarmangu Sub District, Banjarnegara District Priyono, Kuswaji Dwi; Priyana, Yuli; Priyono, Priyono
Forum Geografi Vol 20, No 2 (2006): December 2006
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The objective of the research is to find the most suitable soil conservation practice that may be applied to control landslide hazard. In order to achieve that objective, some research steps must be done, are: (1) to identify the land characteristics of the study area that is based on the understanding of some factors that caused and triggered the landslide hazard, i.e.: slope morphology, rocks/soils characteristics, climatic condition, and landuse; (2) to study the types of landslide that occurs in every landforms and determine the area having ideal landslide form; The proposed landslide in this research is the process of masswasting down-slope as a result of the gravitation action on materials being sliding. The landslide types is including creep, slide, slump, and rocks/soils fall. The methods that being applied in the research include field survey methods and the method for determining landslide hazard by using geographic information techniques. Field survey method was intended to characterize the location of every landslide that have been happened in the study area. The results of field survey were applied as materials for determinating the grade of landslide hazard. Scorring and weighting methods of factors that influence landslide was apllied to determine the grade of landslide hazard. Scor and weight were not same for every parameters used for evaluation. The result of field research shows that landslide happen in every landform unit The study area can be devided into 9 landform unit. The landform units are differentiated into the landslide hazard classes, the study area there were found 5 classes of landslide hazard, namely: (1) vary low hazard equal to 16,65% (1 landform unit); (2) low hazard equal to 7,63% (1 landform unit); (3) medium hazard equal to 37,58% (3 landform unit); (4) high hazard equal to 25,41% (2 landforms unit); and (5) highest hazard equal to 12,73% (2 landform unit). Evaluation of landslide hazard shows hat most of study area have high risk to slide as a result of complex interaction between many factors of landslide.
Study on Runoff Debit in the Catchment Area of Waduk Gajah Mungkur Wonogiri Anna, Alif Noor; Priyana, Yuli
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.v6i2.395

Abstract

AbstractWater resource is one of natural resources, that is very vital. It needed to be used and to be kept throughly. For those purposes need good and directed plan, in which one of the basic component of it plan have to be supported by available a complete hydrological data and it analysis. One of hydrological data analysis is to estimate runoff of catchement area, which can be used for planning the hydrologi construction. This research aim: 1) to calculate the run off discharge by thornwaite Mather Method, monthly, annualy, and the average on the catchment through a sample of Keduang, Temon, Alang, and Wuryantoro areas; 2) to analyze the difference of the run off discharge (at no. 1) by observation resulted from trend analysis. Based on the calculation, it appears, thornwaite-mather method showed that high discharge (moreover limit 0) in dry month. From the research result, it appears, that calculation discharge graphic had lower differentation than observation discharge graphic. From sample of catchment areas that have been investigated, from the highest to the lowest deviation was Wuryantoro catchment area (78,8%), Temon catchment area (47,38%), Alang catchment area (46,45%), and Keduang catchment area (24,98%) respectively). The condition like above caused by intervation of man. Not only did he influence vegetatively, but he influenced technically as well. From these conservation, technical conservation (flood and construction and reservoir) was the highest influence to run off discharge calculation. The run off discharge that was calculated by thornthwite-Mather Method based on air temperate, rainy, altitude, and water holding capacity only, but groundwater supply didn’t be calculated.
Land Potency for Dairy Cattle at East Slope of Merapi-Merbabu Volcano, Boyolali, Central Java Priyana, Yuli
Forum Geografi Vol 18, No 2 (2004)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v18i2.616

Abstract

Research about farm potency for the livestock of diary attle is held in east volcano side of Merapi – Merbabu Boyolali regeny. This famous area represent dairy attle livestock sentra in Boyolali regeny. From the holdness above emerging question why dairy cattle livestock expand at area. This research aim to study which area which are potential for the livestock of dairy cattle and also physical fator what most having an effect to density of dairy cattle livestock, what is availability of water, mean temperature, height of place, accesibility. The methods use in the research is analysis of secondary data provided with survey. To know the condition of physical what most having an effect on density (availability of water, mean air temperature, height of place, accesibility) to use test of multiple regression. To know dairy cattle livestock farm potency joined with others compile map of availability of water, map of temperature, map of height of place, and map of accesibility.  The result of researh indicate that most having an effect to density to dairy cattle livestock press out accesibility. Potency farm area of the livestock of dairy cattle about of height 700 m of sea water level, around region sub district of Cepogo, Selo, and Musuk. Musuk, this area represent area having cold limate enough. Research area having density of highest dairy cattle livestock is district of Musuk.
Perbaikan Irigasi dan Kehidupan Petani (Studi Kasus Irigasi dan Perubahan Sosial Ekonomi di Desa Bugo, Jepara) Priyana, Yuli
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.
Geomorfological Study on the Evaluation of Critical Land in Cepogo, Boyolali, Central Java Province Taryono, Taryono; Santoso, Sugiharto Budi; Priyana, Yuli
Forum Geografi Vol 14, No 2 (2000)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v14i2.443

Abstract

Land is natural resources within processing needs to the wise action in order to give good returns for human and being prevented it’s conservation. In the utility of it’s land this land is proper to the agriculture land have sometime emergedthe environment problems, namely the balance of nature is disturbed. It doesn’t mean that land is forbidden to use, but in the it’s utility purposes this land must be considered it’s capability or it’s balance. If form and manner of using this land doesn’t disturb the natural balance, it means to be guaranted. In the countrary, if form and remain to be guaranted. In the contrary, if form and manner of  using this land disregard with it’s capability, then the natural balance is disturbed, the land is called asland within dangerous condition or critical land. The coresponding  problem that arises in Kecamatan Cepogo under Boyolali district on the surface level land and southern land resembles the critical land that the most erosion appearance can be found assuch sheet erosion, gully erosion, erosion in the other side, vallage forest, settlement land. Mixing estate and the infertile land. This recent exploration purpose is to understand physical factor that affects the critical land as well as to collect and to clarity the critical land. The used method is survey and laboratory analysis by land unit approach ascartography unit. The adopted data of this research is used the effectively width of soil, texture, soil permeability, soil slope, and soil appearance. From this research is understood that the explorated land has three critical land levels, namely; the medium critical land level is 4411,09 are or 17,48%, the wight critical soil level is 7909,74 are or 12,86% of the whole exploration area wide.
Spatial and Regional Development at Boyolali Regency (Geographical Overview) Priyana, Yuli
Forum Geografi Vol 12, No 2 (1998)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v12i2.475

Abstract

Geography is a science that studies mutual relationship between nature and the activity of human being through the spatial approach, ecological approach, and regional approach. The spatial approach means studying a variety of location and phenomena in the earth. Boyolali regency has got a variety of physical condition, therefore it causes differently natural resources. It is necessary to implement the approach of spatial order that is intended to design the land suitable for the resources in the area. In the western area, Mounts Merapi and Merbabu are located with their slopes of more than 40% and it is a conservation area. This area is a ground water recharge area. In the lower area, it is a productive area including forest, agriculture, industry, and settlement.
Outburst Flood Simulation Model for Optimizing the Solo River Floods Emergency Response Activities Priyana, Yuli; Priyono, Priyono; Anna, Alif Noor; Sigit, Agus Anggoro
Forum Geografi Vol 28, No 1 (2014): July 2014
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v28i1.434

Abstract

This study aims to develop flood inundation based on several flood level. The results of this study are: (a) land use in the study area is divided into (1) urban area (the Business Area) which includes regional administrative center, shopping area, and office area, (2) residential areas (single home region, the region multi- unit house (residence), settlement areas and apartments), (3) industrial estate (industrial estates are less dense and dense industrial area), (4) the surface area covered with vegetation (forest - thicket, meadow area, and the area of land productive rice fields and fields), (5) the area of open land and vacant land that is intended (the city park , cemetery and park area, and (6) transportation area and the pavement surface area (area train station and bus terminal region), (b) the preparation of spatial database in this study in the form of data or data vector altitude of Digital Elevation Model (DEM). District of Jebres there are 56 points of elevation and District of Pasar Kliwon there are 48 points of elevation. Elevation of the study area ranged from 88,9 mpdal up to 127.65 mdpal and (c) the higher the flood inundation scenarios impact on land use in the study area are also getting bigger. Most obvious impact under scenario 2 m area of 296 601 m , while the smallest impact under scenario 1 m with an area of 77 693 m 2 2 impact. Extensive simulation results based on the total impact amounts to 544 756 m.
Analysis Landslide Hazard in Banjarmangu Sub District, Banjarnegara District Priyono, Kuswaji Dwi; Priyana, Yuli; Priyono, Priyono
Forum Geografi Vol 20, No 2 (2006): December 2006
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v20i2.1810

Abstract

The objective of the research is to find the most suitable soil conservation practice that may be applied to control landslide hazard. In order to achieve that objective, some research steps must be done, are: (1) to identify the land characteristics of the study area that is based on the understanding of some factors that caused and triggered the landslide hazard, i.e.: slope morphology, rocks/soils characteristics, climatic condition, and landuse; (2) to study the types of landslide that occurs in every landforms and determine the area having ideal landslide form; The proposed landslide in this research is the process of masswasting down-slope as a result of the gravitation action on materials being sliding. The landslide types is including creep, slide, slump, and rocks/soils fall. The methods that being applied in the research include field survey methods and the method for determining landslide hazard by using geographic information techniques. Field survey method was intended to characterize the location of every landslide that have been happened in the study area. The results of field survey were applied as materials for determinating the grade of landslide hazard. Scorring and weighting methods of factors that influence landslide was apllied to determine the grade of landslide hazard. Scor and weight were not same for every parameters used for evaluation. The result of field research shows that landslide happen in every landform unit The study area can be devided into 9 landform unit. The landform units are differentiated into the landslide hazard classes, the study area there were found 5 classes of landslide hazard, namely: (1) vary low hazard equal to 16,65% (1 landform unit); (2) low hazard equal to 7,63% (1 landform unit); (3) medium hazard equal to 37,58% (3 landform unit); (4) high hazard equal to 25,41% (2 landforms unit); and (5) highest hazard equal to 12,73% (2 landform unit). Evaluation of landslide hazard shows hat most of study area have high risk to slide as a result of complex interaction between many factors of landslide.
Geomorfological Study on the Evaluation of Critical Land in Cepogo, Boyolali, Central Java Province Taryono, T; Santoso, Sugiharto Budi; Priyana, Yuli
Forum Geografi Vol 15, No 2 (2001): December 2001
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v15i2.4576

Abstract

Land is natural resources within processing needs to the wise action in order to give good returns for human and being prevented it’s conservation. In the utility of it’s land this land is proper to the agriculture land have sometime emergedthe environment problems, namely the balance of nature is disturbed. It doesn’t mean that land is forbidden to use, but in the it’s utility purposes this land must be considered it’s capability or it’s balance. If form and manner of using this land doesn’t disturb the natural balance, it means to be guaranted. In the countrary, if form and remain to be guaranted. In the contrary, if form and manner of using this land disregard with it’s capability, then the natural balance is disturbed, the land is called asland within dangerous condition or critical land. The coresponding problem that arises in Kecamatan Cepogo under Boyolali district on the surface level land and southern land resembles the critical land that the most erosion appearance can be found assuch sheet erosion, gully erosion, erosion in the other side, vallage forest, settlement land. Mixing estate and the infertile land. This recent exploration purpose is to understand physical factor that affects the critical land as well as to collect and to clarity the critical land. The used method is survey and laboratory analysis by land unit approach ascartography unit. The adopted data of this research is used the effectively width of soil, texture, soil permeability, soil slope, and soil appearance. From this research is understood that the explorated land has three critical land levels, namely; the medium critical land level is 4411,09 are or 17,48%, the wight critical soil level is 7909,74 are or 12,86% of the whole exploration area wide.