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All Journal Jurnal Ilmu Pertanian Indonesia Forum Pasca Sarjana Bumi Lestari Jurnal Keteknikan Pertanian
M. Yanuar J. Purwanto
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Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Education Energy Environmental Science

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Journal : Jurnal Keteknikan Pertanian

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Modifying Tank Model for Study on the Land Use Change Effect to Runoff . Harmalis; M. Azron Dhalhar; M. Yanuar J. Purwanto
Jurnal Keteknikan Pertanian Vol. 15 No. 1 (2001): Buletin Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.015.1.%p

Abstract

The objectives of the research were to modiv the tank model by using infiltration process in the model, based on available daily rainfall data, actual evapotranspiration rates, in 1996 and 1997 for the Cidanau Watershed. The hydrological data were the primary and secondary data. In this study, the prediction of the daily river runoff / discharge was developed by using the modified tank model of the rainfall-runoff processes, and applied to simulate the three land use types in the Cidanau Watershed, comprising of 22 620 Ha. The average coefficient of correlation is 0.81 for the model calibration and validation. The model can also be used to predict river discharge for different land use.
Urban Water Demand on Interbasin Water Resources Management System Sutoyo .; M. Yanuar J. Purwanto; Kato Tasuku; Goto Akira
Jurnal Keteknikan Pertanian Vol. 23 No. 2 (2009): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.023.2.%p

Abstract

Cidanau watershed in West of Java has 22,620 ha; it provides water for other basin in the largestindustrial city of Cilegon. To have future condition of water supply and demand for Cidanau and Cilegonregion model was developed expressing water supply from Cidanau built by tank model with some landuses related parameters. Water supply from Cidanau watershed depends on land use and water systemin the watershed. The rest of water flow to the downstream and be utilized to the Cilegon city by Cinangkapump station and calculated based on the water use of industrial and domestic. To maintain and increasethe availability of water, it is necessary to change some land uses into forest and install better water supplysystem with higher efficiencies. Water availability of runoff under existing condition as Scenario 1 is onlysufficient until before the year 2018. Scenario 2 with the land use to be change as 50% of the mixedagricultural dry land system into forest area and 50% garden into rice field, water availability will be sufficientuntil more than 2018. If Scenario 2 was used together with Scenario 3 having better efficient technology,water supply will be sufficient until more than the year 2025.Keywords : water supply, water demand, urban, interbasin, system dynamicsDiterima: 7 Januari 2009; Disetujui: 14 Juli 2009
Co-Authors . Harmalis Allen Kurniawan Asep Sapei Goto Akira Hidayat Pawitan Kato Tasuku M. Azron Dhalhar Ngudiantoro . Ridwan Adi Surya Robiyanto H. Susanto Sutoyo Widiatmaka