Ugro Hari Murtiono, Ugro Hari
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Water Storage Index Estimation using Geographic Information System Wuryanta, Agus; Murtiono, Ugro Hari
Forum Geografi Vol 28, No 1 (2014)
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The study aims to estimate water storage index (IPA) of six sub watersheds (Panjang, Rengas, Legi, Galeh, Parat, and Sraten) in the cachment area of Rawapening lake by using Geographic Information System. Water storage index can be calculated from average discharge (m3) devided by water requirement (m3) for each land cover/land use. Landuse information is obtained from Indonesian Topographic Map scale of 1:25.000 as updated by using SPOT image (2006), while surface water availability data was obtained from the ministry of public works. The results indicate that 1) IPA of Panjang Subwatershed was categorized as good condition with an index value of 1,49; 2)IPA of Rengas and Legi sub watersheds were categorized as moderate condition with index value 0,76 and 0,55; 3) IPA of Galeh, Parat, and Sraten sub watersheds was categorized as bad with index value of 0,3, 0,15, and 0,33, this watershed need to be improved especially an effective water resources plan, allocating and distributing of water according to priority establishment.
Water Storage Index Estimation using Geographic Information System Wuryanta, Agus; Murtiono, Ugro Hari
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.v28i1.438

Abstract

The study aims to estimate water storage index (IPA) of six sub watersheds (Panjang, Rengas, Legi, Galeh, Parat, and Sraten) in the cachment area of Rawapening lake by using Geographic Information System. Water storage index can be calculated from average discharge (m3) devided by water requirement (m3) for each land cover/land use. Landuse information is obtained from Indonesian Topographic Map scale of 1:25.000 as updated by using SPOT image (2006), while surface water availability data was obtained from the ministry of public works. The results indicate that 1) IPA of Panjang Subwatershed was categorized as good condition with an index value of 1,49; 2)IPA of Rengas and Legi sub watersheds were categorized as moderate condition with index value 0,76 and 0,55; 3) IPA of Galeh, Parat, and Sraten sub watersheds was categorized as bad with index value of 0,3, 0,15, and 0,33, this watershed need to be improved especially an effective water resources plan, allocating and distributing of water according to priority establishment.
Performance Evaluation of Tuntang Watershed based on Quantity and Quality of Water Murtiono, Ugro Hari; Paimin, Paimin
Forum Geografi Vol 30, No 2 (2016): December 2016
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v30i2.1708

Abstract

The objective of the study was to evaluate the performance of Tuntang Catchment based on water quantity and quality area ranging from its upstream to downstream. The method used to determine the water quantity was by carrying out ground study on water discharge in the dry season (June 2011) in the research site, while the water quality was determined by conducting a laboratory analysis on the samples obtained from the sites in both the rainy and dry season (January and June 2011). The results indicated that the quantity of water discharge in Tuntang River was categorized “good”, although it was utilized for many uses such as irrigation, hydropower, and drinking water. Most of water discharges were mainly supplied from the upstream of Rawa Pening Lake. The water quality determined from the parameters of total dissolved solids, conductivity, pH, phosphate, and nitrate could be classified as “good”, meanwhile, the turbidity and dissolved oxygen were classified as “poor”.
Kajian Ketersediaan Air Permukaan pada Beberapa Daerah Aliran Sungai (Studi Kasus di Sub DAS Temon, Wuryantoro, Alang, dan Keduang) Murtiono, Ugro Hari
Forum Geografi Vol 23, No 1 (2009): July 2009
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v23i1.4996

Abstract

The study was conducted at some watersheds (Temon, Wuryantoro, Alang, and Keduang sub Watersheds), in Wonogiri District. These four sub Watersheds are Main River whose outlets go into Wonogiri Dam. The study will calculate of water availability and the need of water for various uses at four sub Watersheds. The Thornwaite and Mather method was used to calculate the of water availability. The results indicate that : (1) The water availability at Temon Sub Watershed) 35.435.875 m³ and the need of water per year sebesar 51.053.247 m³, the water minus 30,59% per year; (2) The water availability per year Wuryantoro sub Watershed 17.788.417 m³ and the need of water per year 22.413.430 m³, the water minus 20,64% per year; (3) The water availability per year at Alang sub Watershed 31.372.317 m³ per year and the need of water per year 69.566.500 m³, the water minus 54,90% per year; (4) The water availability per year geological at Keduang sub Watershed 438.527.889 m³ and the need of water per year 452.611.219 m³, the water minus 3,11% per year; (5). Watershed having condition needs improvement especially an effective water resourcesplan, allocating, and distributing of water according to priority establishment, e.g., water pond, revegetation with low evapotranspiration potential, developing infiltration well, protecting water spring from disconcerting, and construction of water reservoir.
Kajian Model Estimasi Volume Limpasan Permukaan, Debit Puncak Aliran, dan Erosi Tanah dengan Model Soil Conservation Service (SCS), Rasional Dan Modified Universal Soil Loss Equation (MUSLE) (Studi Kasus di DAS Keduang, Wonogiri) Murtiono, Ugro Hari
Forum Geografi Vol 22, No 2 (2008): December 2008
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v22i2.4992

Abstract

Hydrologic modelling has been developing and it is usefull for basic data in managing water resources. The aim of the reseach is to estimate volume runoff, maximum discharge, and soil erosion with SCS, Rational, and MUSLE models on Keduang Watershed. Explain the data analysis, and flow to get the data. SCS parameters model use are: runoff, rainfall, deferent between rainfall runoff. The deferent rainfall between runoff relationship kurva Runoff Coefisient (Curve Nunmber/CN). This Coefisient connected with Soil Hydrology Group (antecedent moisture content/AMC), landuse, and cultivation method. Rational parameters model use are: runoff coefisient, soil type, slope, land cover, rainfall intensity, and watershed areas. MUSLE parameters model use are: rainfall erosifity (RM), soil erodibility (K), slope length (L), slope (S), land cover (C), and soil conservation practice (P). The result shows that the conservation service models be applied Keduang Watershed, Wonogiri is over estimed abaut 29.54 %, Rational model is over estimed abaut 49.96 %, and MUSLE model is over estimed abaut 48.47 %.
EUTROPHICATION AND SOLVING EFFORT IN LAKE RAWAPENING, SEMARANG DISTRICT CENTRAL JAVA (A Spasial Approach) Wuryanta, Agus; Murtiono, Ugro Hari
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol 15, No 1 (2018): January 2018
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v15i1.15270

Abstract

Lake Rawapening in Semarang regency is one of the priority lakes to be addressed related to eutrophication  issues. High concentration of Nitrogen (N) and Phospor (P) in the water that cause eutrophication of the lake has fueled the high growth of the water hyacinth. The nutrients can come from agricultural land such as irrigated rice field, rainfed and vegetable farms. Objectives of this study were to determine the total amount of nutrients supply from agricultural land on each catchment area of the lake and provide alternative solutions to reduce nutrients concentration. Information of agricultural land can be obtained from Indonesia Topographic Map (RBI) scale of 1:25.000 and updated with SPOT-2 image recorded in July 5, 2006. Surface water samples were taken during the dry and rainy season from agricultural land as much as 3 samples for each agriculture land types, therefore 18 samples were collected. The result shows, Ringin Sub-watershed has the most extensive irrigated rice field (662.94 ha). While, Panjang Sub- watershed has the most extensive of rainfed  (988.49 ha) and vegetable farms (643.74 ha). The agriculture land in the catchment area has supplied N and P nutrients of 2.181,71 tons and 420,04 tons to water of the lake, annually. Panjang river has supplied the highest N and P nutrients, ie 769,025 ton and 105,432 ton annually, while Kedung Ringin river has supplied lowest N and P nutrients, ie 19,479 ton and 4,790 ton, annually. Buffer zone around the lake sould be developed necessary to reduce  the nutrients  supply to the lake.
Water Shortage at Several Sub Watershed into Wonogiri DAM Murtiono, Ugro Hari; Wuryanta, Agus
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol 16, No 2 (2019): July
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v16i2.20830

Abstract

The study was conducted at several selected sub-watersheds (Temon, Wuryantoro, Alang, and Keduang Sub-watersheds) in Wonogiri District. These four sub-watersheds are main rivers whose outlets flow into Wonogiri Dam. The study calculated the water supply and water demand for various uses at four sub-watersheds. The Thornwaite and Mather method was used to estimate the water supply. The results indicated that: (1) The water supply of Temon Sub-watershed was 35,435,875 m3­­­­­ and the annual water demand was 51,053,247 m3­­­­­, therefore there was a deficit of 30,59 % per year; (2)  The water supply of Wuryantoro Sub-watershed was 17,788,417 m3­­­­­ and the water demand was 22,413,430 m3­­­­­ per year, therefore the deficit was 20.64% per year; (3) The water supply of Alang Sub-watershed  was 31,372,317 m3­­­­­ per year and the water demand was 69,566,500 m3­­­­­ per year, therefore the deficit was 54.90% per year; (4) The water supply of Keduang Sub-watershed was 438,527,889 m3­­­­­ and the water demand was 452,611,219 m3­­­­­ per year, thus, the deficit was 3.11%  per year; (5) those sub-watersheds need improvements especially effective water resources plans, water allocation and distribution based on the determined priority, e.g., retention basin, low evapotranspiration re-vegetation, well-managed infiltration, water resources protection, and water reservoir construction.