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      Analisis Neraca Air Embung Cikabayan IPB University dengan Menggunakan Metode NRECA

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      Date
      2022
      Author
      Abyan, Rafii
      Sapei, Asep
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      Abstract
      Embung Cikabayan berada di IPB University dan terletak dekat Kebun Percobaan Cikabayan. Embung ini nantinya akan dimanfaatkan untuk pembangkit listrik mikrohidro, ekowisata, dan sebagai suplai air untuk Kebun Percobaan Cikabayan. Hal ini sejalan dengan penuturan petugas kebun, bahwa suplai air untuk operasi masih kurang dari suplai pusat IPB. Tujuan dari penelitian ini adalah untuk mengetahui potensi air Embung Cikabayan dan nilai kebutuhan air tanaman pada Kebun Percobaan Cikabayan, serta menganalisis neraca air pada Embung Cikabayan. Ketersediaan air dihitung dengan menggunakan metode NRECA berdasarkan data curah hujan dan evapotranspirasi. Kebutuhan air tanaman dihitung dengan menggunakan aplikasi CROPWAT 8.0. Perhitungan ketersediaan air dengan menggunakan metode NRECA menghasilkan nilai rata-rata debit per tahun sebesar 0.0132 m3/detik. Kebutuhan air irigasi dari hasil aplikasi CROPWAT 8.0 hanya terjadi pada bulan Juli sebesar 0.31 liter/detik dan pada bulan Agustus sebesar 0.39 liter/detik. Simulasi neraca air dengan debit andalan 80% menggambarkan bahwa Embung Cikabayan dapat memenuhi kebutuhan air tanaman pada Kebun Percobaan Cikabayan.
       
      The Cikabayan pond located at IPB University, near the Cikabayan Field. This pond will be used for micro-hydro power plants, ecotourism, and as a water supply for the Cikabayan field. This is in line with the statement of the gardener, that the water supply for operations is still less than the supply from the IPB center. The purpose of this study were to determine the water potential of the Cikabayan Reservoir and the value of plant water requirements at the Cikabayan Experimental Garden and to analyze the water balance of the Cikabayan pond. Water availability is calculated using the NRECA method based on rainfall and evapotranspiration data. Plant water requirements are summed using the CROPWAT 8.0 application. Calculation of water availability using the NRECA method produces an average annual discharge value of 0.0132 m3/s. The irrigation water demand from the CROPWAT 8.0 application only occurs in July at 0.31 liters/s and in August at 0.39 liters/s. The water balance simulation with 80% depandable flow illustrates that the Cikabayan small dam can supply the water needs of the Cikabayan field.
       
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      http://repository.ipb.ac.id/handle/123456789/114385
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      • UT - Civil and Environmental Engineering [1043]

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      Indonesia DSpace Group 
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