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Putu Sudira

Fakultas Teknologi Pertanian, Universitas Gadjah Mada

Author-ID : 2871440

Agriculture, Biological Sciences & Forestry

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Modifikasi Iklim Mikro untuk Meningkatkan Produksi Pertanian Melalui Pematah Angin Putu Sudira
agriTECH Vol 4, No 2,3, & 4 (1984)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Hubungan Parameter Iklim dengan Produksi Kedele Putu Sudira
agriTECH Vol 8, No 3 (1988)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Analisis Stokhastik Untuk Curah Hujan Bulanan dan 10 Harian Pada Stasiun Hujan di Daerah Irigasi Cikeusik, Cirebon. Jawa Barat Bambang J.A.; Putu Sudira; Bambang Hari P.
agriTECH Vol 11, No 1 (1991)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Pembangkitan Data Hujan Harian dengan Model Rantai Markov Untuk Penyediaan Air Irigasi Andes Erwanto; Putu Sudira; Sigit Supadmo
agriTECH Vol 12, No 4 (1992)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Penelitian ini dilakukan di Daerah Irigasi Van Der Wijck, dengan sumber air irigasi utarna berasal dari bendung Progo. Model yang dikembangkan dalam penelitian ini dibagi atas 2 sub-model yaitu: (a) sub-model pembangkitan data dengan menggunakan model rantai Markov. dan (b) sub-model kebutuhan air irigasi. Model diuji dengan menggunakan uji statistik T test dan analisis regresi, sedangkan untuk mendapatkan pola tanam yang optimum dilakukan analisis uji koefisien variansi. Dan analisis koefisien variansi diperoleh bahwa saat tanam terbaik untuk pola tanam "padi IR 36 - padi Cisadane - Jagung" adalah pada awal bulan Desember dengan koefisien variansi terkecil (0,949), sedangkan untuk pola tanam "padi Cisadane - padi IR 36 - Jagung" saat tanam terbaik adalah pada pertengahan bulan November dengan koefisien variansi terkecil (0,859).

Model Hidrologi Produksi Air Bulanan Bagian I : Kalibrasi dan Analisis Kepekaan Lukman Hidayat; Putu Sudira; Sahid Susanto
agriTECH Vol 16, No 2 (1996)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

In a hydrologic model, sensitivity analysis is essential in order to determine the importance of parameters on model outputs, and to expIore more completely the validity of the model. The study focused on calibrating and the sensitivity analysis of hydrologic model parameters. A monthly water yield model of rainfall-runoff relationship has been created in order to simulate runoff volumes. It was controlled by four parameters, those are: fo (infiltration capacity, mm/hr), Mc(the moisture-holding capacity of the lower zone, mm), Sm (maximum possible seepage rate, mm/day), and a (a constant defining the portion of seepage that appears as runoff). An automatic parameter optimization routine was presented. Eleven small watersheds (less than 1000 square km) in Central Java were used for calibration. The results of sensitivity analysis showed that the increasing value of Fo and Mo will be followed by the decreasing of model output (water yield). In contrast, the increasing value of Sm and a will be followed by the increasing of model output Fo more sensitive than Mc, Sm, and a.Based on graphical and statistical criteria, the monthly water yield can be simulated well by the model.

Model Hidrologi Produksi Air Bulanan Bagian II : Analisis Korelasi Antara Parameter Model dan Karakteristik DAS Lukman Hidayat; Putu Sudira; Sahid Susanto
agriTECH Vol 16, No 3 (1996)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

An automatic parameter optimization routine was presented. Eleven small watersheds (less than 1000 square km) in Central Java were used for calibration. A method for estimating four parameters water yield model was obtained Equations for predicting the parameters were developed on the correlation analysis between model parameters and measurable watershed characteristics.

Pengkajian dan Penanganan Daerah Aliran Sungai Bagian Hulu dengan Pendekatan Model ANSWERS, Bagian 1 : Prediksi Air Limpasan Suharyono Suharyono; Putu Sudira; Sukirno Sukirno
agriTECH Vol 18, No 2 (1998)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The Area Nonpoint Sources Watershed Environment Response Simulation (ANSWERS) model as the distributed hydrologic model for the simulation of 10 scenarios of land uses is presented. The model is based on the assumption that at any point of watershed spatial, runoff volume is closely related to the hydrologic and physiographic processes such as, rainfall intensity, infiltration rate, soil moisture content, soil behaviour, land slope and vegetative cover. The discharge hydrograph of the model gave a good result and was statistically significant to the observed hydrograph.. Among the ten scenarios of land uses, the lowest peak discharge of 7.7. m3/second was obtained at the simulation of 80% of forest land, meanwhile the highest peak discharge of 33.36 m3/second was obtained when there was no forest land at the study area.

Penerapan Tri Hita Karana dalam Perancangan, Pembangunan serta Operasi dan Pemeliharaan Jaringan Irigasi Subak Wisnu Wardana; Putu Sudira
agriTECH Vol 19, No 2 (1999)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Subak is a specific irrigation scheme in Bali that has been established since centuries ago. The long life of Subak in favor of specific way of life called Tri Karam. People there believe that they will be happy if they can make a harmony among three principles of Tri Hua Karana - Parhyangan (divineness to the God), Pawongan (human being), and Palemahan (nature) in their life. This study describes an application of Tri Him Karana in design, construction, operation and maintenance of subak irrigation scheme. Result shows that Tri. Hita Karana has been applied. Parhyangan principles is used in every activitiy that refers to Sang Hyang Widi Wasa for blessing them. The application of Pawongan principle is appreciated to all human being activities. While, Palemahan principle is done by taking care of nature conservation by people.

Pengkajian dan Penanganan Daerah Aliran Sungai dengan Pendekatan Model Answers Bagian H : Prediksi Erosi, dan Sedimentasi Suharyono Suharyono; Putu Sudira; Sukirno Sukirno
agriTECH Vol 18, No 3 (1998)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The amount of sediment which will leave to or deposit in the elements of watershed was able to be calculated by ANSWERS model at different land uses, soil types and land slopes. The simulation model resulted the soil erosion of 2,228 WOK' or equal to 51,99 ton/ha/year at the existing rainfall (21,95 mm). Considering the tolerable soil erosion of the study area of 30 ton/ha/year, the optimal forest land area needed in this watershed is 70% of the total land area, where the soil erosion is still less than the tolerable soil erosion, that is 21, 98 ton/ha/year. This value is less than 58,77% of the existing soil erosion

Co-Authors Andes Erwanto Bambang Hari P. Bambang J.A. Lukman Hidayat Sahid Susanto Sigit Supadmo Suharyono Suharyono Sukirno Sukirno Wisnu Wardana

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