Memperhitungkan Laju Infiltrasi Model Green-Ampt Menggunakan Aplikasi Pemrograman Visual Basic

نویسندگان

چکیده

Abstrak. Infiltrasi merupakan salah satu informasi penting dari keadaan suatu lahan. Laju infiltrasi kecepatan air yang masuk kedalam tanah persatuan waktu dan apabila laju telah mencapai maksimum maka ini dinamakan dengan kapasitas infiltrasi. perlu diukur untuk mengetahui kadar bawah (perkolasi). Perhitungan secara pengukuran menggunakan model Green-Ampt dilakukan ada pada lahan, serta membangun bahasa pemograman visual basic memperkirakan alat rainfall simulator sebagai simulasi hujan buatan. Sampel diambil lahan Perkebunan Kurma Barbate denga kemiringan lereng 25% tidak terganggu diletakkan plot penelitian. Pengukuran per kejadian pemberian menghitung terlebih dahulu tetampung gelas ukur intensitas hujannya mengukur tinggi akhir reservoir pengukuran. Hasil penelitian menunjukkan dapat kondisi berbeda nilai infiltrasi,waktu terjadinya ponding, limpasan, akumulasi berbeda-beda pula.Tingkat perbedaan akurasi MAPE, RMSE Bias perhitungan tekstur pasir, lempung berpasir, pasir berlempung, liat 10%, 20%, 25%, 28,26%, 35% mendekati aktual MAPE adalah sebesar 4,65, 2,66, 6,33 13,73 (layak), 10% 10,17 , 20% 18,28. Nilai 1 dikarenakan hasil memiliki jauh pengukurannya.Kata kunci: Infiltrasi, Model Green-Ampt, Rainfall SimulatorAbstract. Infiltration is one of the important information state a land. The infiltration rate speed water entering soil unit time and when has reached its maximum, it called capacity. needs to be measured determine groundwater content (percolation). Calculation by measurement using carried out that exists in land, build programming language estimate infiltration. calculation this uses as simulation artificial rain. Soil samples were taken from Dates Plantation with slope which was undisturbed placed into research plot. measurements are rain event first calculating stored measuring cup intensity final level rate. results show can under conditions different values rate, runoff, accumulation levels accuracy at rates on texture sand, sandy loam, loamy clay moisture 28.26%, close actual value for 4.65, 2.66, 6.33 13.73 (adequate), bias 10.17 18.28. because have far value.Keywords: Infiltration, Model, Simulator

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ژورنال

عنوان ژورنال: Jurnal Ilmiah Mahasiswa Pertanian

سال: 2021

ISSN: ['2614-6053', '2615-2878']

DOI: https://doi.org/10.17969/jimfp.v6i4.18147