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Analysis Landslide Hazard in Banjarmangu Sub District, Banjarnegara District Kuswaji Dwi Priyono; Yuli Priyana; 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.
Pencemaran Air Tanah di Perkotaan Yuli Priyana
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.v5i2.4679

Abstract

Air merupakan kebutuban hidup bagi manusia, baik sebagai mahkluk hayati maupun untuk kehidupan sehari-hari (MCK), irigasi maupun industri. Sebagian dari kebutuhan tersebut diambilkan dari air tanah. Dengan semakin meningkatnya jumlah penduduk terutama di perkotaan secara tidak langsung akan berpengaruh terhadap persediaan air tanah yang ada baik kualitas maupun kuantitas. Pengambilan air tanah yang terus meningkat dan melebibi save yield pada daerah pantai akan mengakibatkan intrusi air laut yang mengakibatkan air tanah menjadi asin. Demikian juga semakin banyaknya limbah yang dibuang oleh manusia ke dalam tanah baik limbah rumah tangga maupun industri akan mrngakibatkan pencemaran air tanah. Pada umumnya limbah yang berpengaruh terhadap air tanah di perkotaan adalah limbah rumah tangga (MCK) maupun limbah industri. Pengotoran atau kontaminasi air tanah ini akan berbahaya pada manusia yang telah meminumnya. Oleh karena itu dalam pemanfaatan sumber daya air tersebut hendaknya dapat dimanfaatkan clengan sebaik-baiknya dan dijaga kelestariannya.
Outburst Flood Simulation Model for Optimizing the Solo River Floods Emergency Response Activities Yuli Priyana; Priyono Priyono; Alif Noor Anna; Agus Anggoro Sigit
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.
Groundwater Characteristic and Fresh Water Supplying System of the East Slope Merapi Volcano Yuli Priyana; Agus Anggoro Sigit
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.v16i1.416

Abstract

slope of Merapi Volcano in Boyolali. The aims of this study are first to know the characteristic of groundwater in every morphological unit, second to know supplying system of fresh water in every each unit.The method used is survey method. The sampling use to know the characteristic groundwater both quality and quantity of the water, and supplying system of fresh by using area sampling. As basic of stratification of its region is morphological unit. Analysis method used is tabulation, laboratory analysis, and graphic analysis to describe its space.The result of the study shows that the quality of groundwater in every morphological unit is good enough, but in general the contents of element Ca, Mg, N03, CI, SO4, HCO3 shows that the lower the region is, the higher the content of the element . But if it is seen from the depth of its groundwater, so that the fluvial volcanic plain is the shallowest, then the fluvial volcanic foot plain and the last the volcanic foot area. Supplying system of fresh water, which derived from the dominant of well water, is especially used in morphological unit in fluvial "volcanic foot plain. The spring water is used by the population in the morphological unit in volcanic foot plain and then in morphological unit of fluvial volcanic foot plain. The population uses much rainwater in the morphological unit of volcanic foot plain.
Consumption of Water for Household Needs and the Affecting Factors at Banyudono Boyolali Alif Noor Anna; Retno Woro Kaeksi; Yuli Priyana
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.v14i1.448

Abstract

The consumption of drinking water for a community is different from one area to the other. This is normally influenced by the population development, socio-economic, cultural, and physical conditions mainly related to the supply of drinking water and how to exploit it. Banyudono district is an area located in the regency of Boyolali. The development of this area depends on Boyolali City and Kartasura district. Such a location enables the area to have a process of the physical and socio-economi developments. In addition, it has an influence upon social behaviour to consume water. This research is aimed at knowing the average consumption of household need and analyzing the factors influencing the utilization of water as drinking water. The result of this research indicated that 1) the average consumption of a human being for drinking water was 79,37 litter a day. It means that the onsumption of a human being for drinking ater generally ranged from 60 to 80 litter a day; 2) most of the ater was consumed to meet basic needs such as cooking, drinking, bathing, and washing; 3) the difference of the average consumption was influenced by the kind of water source and how to exploit it; 4) a parameter of the most significant socio-economic condition that took effect on the average consumption for drinking water was the parameter of income with correlation of 0.362 and the significant level of 0.01.
Management of an Underground River to Overcome Water Scarcity in the Gunung Sewu Karst Area, Indonesia Choirul Amin; Priyono Priyono; Arif Jauhari; Yuli Priyana; Kuswaji Dwi Priyono; Munawar Cholil
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.v31i1.4502

Abstract

Since people living in a karst area periodically face a crisis due to a lack of fresh water, it is necessary to re-evaluate the ability to use water resources. An appropriate and effective management is required to use available water resource sustainably. We describe a management process of exploring underground river in karst region as water resources. The activities completed included four phases, namely exploration, pre-lifting activities, the water lifting and post-lifting activities. The exploration phase included speleological surveys and data collection for the cave mouth using remote sensing instrument. The pre-lifting was done to prepare various requirements before the lifting process was completed. The water lifting phase consisted of the construction of an underground river dam, the installation of submersible pumps, the construction of reservoirs and the installation of piping to connect to the public hydrant. The post-lifting phase was mainly conducted to organise water distribution evenly. This management model was evidenced to successfully overcome drought in Pucung village by providing fresh water to the local community. Moreover, this model promoted residents’ cost savings by reducing their expenses for buying water from IDR 50,000/m3 to IDR 3,500/m3 (1,300 percent).
Geographical Distribution of Dairy Cattle in Boyolali Yuli Priyana; Soenarso Simoen; Suyono Suyono
Forum Geografi Vol 13, No 1 (1999)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v13i1.462

Abstract

The researcch about the geographic distribution of diary cattle breeders, is held in Subdistrict of Selo, Cepogo, Musuk, Boyolali, Mojosongo, Teras, and Banyudono, Boyolali regency. This research aims to investigate potential areas for dairy attle breeding and the physical factors (availability of groundwater, average temperature, altitude, accesibility) that contribute most to the density of cattle in the research site. In addition, it investigates the differences m water supply for dairy cattle breeding and the ratio of income to cost at every morphological units as well as the effect of the amount of water supply on milk production and the effect of the Ca content of groundwater on the density of dairy cattle. The methods use in the research is survey method. The data colleted in the research consist of 200 primary data of the respondents taken from head of dairy cattle breeders families using a questionnare. Secondary data are obtained from related agencies, reference books and other authorized source dealing with the research yopic. In order to find out the differences in water supply for dairy cattle breeding and the ratio of income to cost, a statistical measurenment with Anova test is carried out. A multiple regression test is used to find out the effects of the availability of groundwater, altitude, average temperature, and accesibility on the density of dairy cattle. A simple regression test is used to find out the effects of water supply on milk producctin and the Ca sontent of groundwater on the density of dairy cattle.The result of the research indicate that the research  site consist of four morphological units, namely the Volcanic slope, Volcanic foot, fluvio Volcanic foot, fluvio volcanic plain. The potential areas for dairy cattle breeding are situated at an altitude of 700 meters, temperature 17o C – 21o C especially the areas in the subdistrict of Selo and Cepogo. The result of the statistical test indicate that the most differences in the amount of water supply for dairy attle breeding as well as in the rasio between income and cost among morphological units. Water supply for dairy cattle breeding has no effect on milk production, whereas the Ca content of groundwater has no effect on the density of dairy cattle.
The Potential of Umbul Sungsang Spring Water for Drinking Wate, PDAM, and Irigation Purposes at Banyudono, Boyolali, Central Java Yuli Priyana; Rohman Hakim
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.v15i2.4574

Abstract

Umbul Sungsang spring located in the foot of a Merapi is on shift zone between volcanic foot plain and fluvial volcanic fott plain constitutes spring belt. Up to the present, the population use that spring for drinking water and irrigation. The planning of taking water by Municipal Waterworks to supply Solo population causes people around it worried because the usually use that spring. Therefore it is needed to conduct a research to know the potential of that spring. The aim of this research is to account how much the need of drinking water, manucipal waterworks and irrigation and the potential of the spring which is available. The research uses survey method. Primary and secondary data are collected, analyzed quantitatively by using software aid to do simulation the need of irrigation. The result of the research shows that the need of drinking water is 0.068 lt/second/day taken in dry season; manucipal waterworks uses 200 lt/second/day and for irrigation is about 442.2 lt/second/day with the pattern rice – tobacco – rice. Irrigation is also supplied from Bendung Bukur Ireng. The result of the research also shows that in October period I, II, III, and November period II and I lack of water. Therefore municipal waterworks must not use water on Otober and November, while on July and September adjust to the rest of discharge of water, which is available. Its water quality fulfils the requirement for various needs.
Kajian Kerawanan Tanah Longsor di Daerah Aliran Sungai (DAS) Bengawan Solo Hulu Tengah Alif Noor Anna; Kuswaji Dwi Priyono; S Suharjo; Yuli Priyana
Prosiding University Research Colloquium Proceeding of The 7th University Research Colloquium 2018: Bidang MIPA dan Kesehatan
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1930.702 KB)

Abstract

Daerah Aliran Sungai (DAS) merupakan salah satu faktor penentukondisi sumber daya air di suatu wilayah. Permasalahan kebencanaandi DAS Bengawan Solo Hulu Tengah seperti banjir, kekeringan, lahankritis, dan tanah longsor yang terjadi berdampak pada sektorsumberdaya air wilayah. Tujuan dari penelitian ini adalahmenganalisis tingkat kerawanan tanah longsor di DAS Bengawan SoloHulu Tengah. Metode yang digunakan dalam penelitian ini adalahmetode survei. Analisis data menggunakan metode skoring berjenjang.Hasil penelitian menunjukkan bahwa tingkat kerawanan tanah longsordi daerah penelitian dibagi menjadi 3 kelas, yakni kelas kerawananrendah, sedang, dan kelas kerawanan tinggi. Tingkat kerawanan tanahlongsor di daerah penelitian tersebar merata. Kelas kerawanan tanahlongsor rendah terdapat di Sub DAS Pepe dan Sub DAS WirokoTemon. Kelas kerawanan tanah longsor sedang tersebar di Sub DASAlang Unggahan, Bambang, dan Sub DAS dengkeng. Sementara itukelas kerawanan tinggi tersebar di Sub DAS Jlantah Walikun Ds,Keduang, dan Sub DAS Mungkung.
KETERSEDIAAN AIR UNTUK KEBUTUHAN TANAMAN JAGUNG PADA SAWAH TADAH HUJAN DI KECAMATAN KEMUSU KABUPATEN BOYOLALI Nurul Hidayah; Yuli Priyana
Prosiding University Research Colloquium Proceeding of The 8th University Research Colloquium 2018: Bidang Teknik dan Rekayasa & Bidang Tekni
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (776.933 KB)

Abstract

Tanaman jagung merupakan tanaman yang tahan terhadap cekaman air. Di Kecamatan Kemusu tanaman jagung ditanam pada sawah tadah hujan yang hanya mengandalkan air hujan untuk pengairannya. Pada musim kemarau tidak ada suplai air sehingga perlu untuk mengetahui kebutuhan air untuk tanaman jagung dan pola tanam yang baik sehingga kebutuhan air tanaman jagung dapat terpenuhi. Kebutuhan air tanaman jagung dipengaruhi oleh iklim, curah hujan, kadar lengas tanah dan karakteristik tanaman tersebut. Obyek penelitian ini adalah tanaman jagung dengan metode yang digunakan adalah analisis data sekunder dengan dibantu aplikasi Cropwat 8.0 untuk menentukan laju evapotranspirasi standar, kebutuhan air tanaman dan pengaturan irigasi tanaman. Penganalisisan data didasarkan pada tiap jenis tanah karena tanah mempunyai peranan penting untuk pertumbuhan tanaman jagung. Ketersediaan air di Kecamatan Kemusu periode tanam Maret – Agustus cukup bahkan surplus. Pada tanah grumusol Bulan Maret – April merupakan bulan yang sedikit rawan karena menurunnya kelembaban tanah hingga posisi mendekati garis kondisi air siap tersedia. Hal serupa juga terjadi pada tanah litosol pada bulan Maret – Mei. Pada tanah regosol ketersediaan air cukup aman, namun perlu diperhatikan pada fase akhir pertumbuhan hampir mendekati garis kondisi air siap tersedia.