GEOGRAPHICALLY WEIGHTED REGRESSION AND MULTIPLE LINEAR REGRESSION FOR TOPSOIL TEXTURE PREDICTION

نویسندگان

چکیده

Land resource management requires extensive land mapping. Conventional soil mapping takes a long time and is expensive; therefore, geographic information system data as predictor in texture modeling can be used an alternative solution to shorten reduce costs. Through digital elevation model data, topographic variability obtained independent variable predicting texture. Geographically weighted regression observe the effects of spatial heterogeneity. This study uses set 50 observation points, each which had particle-size fraction attributes eight local morphological variables. The covariates this are eastness aspects, northness slope, unsphericity curvature, vertical horizontal accumulation elevation. Prediction using geographically shows more results compared multiple linear models. location affect product Y, with R2 value 0.81 sand fraction, 0.57 silt 0.33 clay fraction.

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ژورنال

عنوان ژورنال: International journal of research - granthaalayah

سال: 2021

ISSN: ['2394-3629', '2350-0530']

DOI: https://doi.org/10.29121/granthaalayah.v9.i2.2021.3112