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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan)
Muhammad Fauzan Ramadhan
Program Magister Geografi, Fakultas Geografi, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Environmental Science

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PERBANDINGAN METODE MULTIPLE LINEAR REGRESSION (MLR) DAN REGRESSION KRIGING (RK) DALAM PEMETAAN KETEBALAN TANAH DIGITAL Muhammad Fauzan Ramadhan; Guruh Samodra; Muhammad Rizky Shidiq Nugraha; Djati Mardiatno
Jurnal Tanah dan Sumberdaya Lahan Vol. 10 No. 1 (2023)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1099.777 KB) | DOI: 10.21776/ub.jtsl.2023.010.1.7

Abstract

Soil thickness has a significant influence on many of earth surface processes, and it can be mapped using various methods. Digital soil mapping can be used to estimate the spatial distribution of soil thickness and can estimate the uncertainty of the soil prediction map. Digital soil mapping using regression methods such as Multiple Linear Regression (MLR) and Regression Krigging (RK) was used to estimate soil thickness of the slope of Bener Reservoir. Bener Dam is a national strategic project which is built for irrigation to improve farming quantity. The aim of this research was to determine the spatial variation of the soil thickness at the slope of Bener Reservoir. The accuracy of MLR and RK were compared to select the best soil thickness prediction. There were 212 and 53 soil thickness samples from fieldwork which were used for data training and testing, respectively. There were 5 environmental variables such as elevation, distance from river, slope, plan curvature, and topographic wetness index. R programming language with gstat, krige, and stats Packages was employed for MLR and RK prediction. The result showed that KR is more accurate than MLR.
Co-Authors Djati Mardiatno Guruh Samodra Muhammad Rizky Shidiq Nugraha