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Publication . Article . 2018

Evaluation of pedotransfer functions for predicting soil bulk density for U.S. soils

Ahmed M. Abdelbaki;
Open Access
Published: 01 Dec 2018 Journal: Ain Shams Engineering Journal, volume 9, issue 4, pages 1,611-1,619 (issn: 2090-4479, Copyright policy )
Publisher: Elsevier

In this article, the predictive accuracy of 48 published pedotransfer functions (PTFs) for predicting soil bulk density (BD) was evaluated using soil database from the United States. In addition, new PTF for predicting BD using inputs of organic carbon content (OC) was proposed and validated. The results showed that 8 of the evaluated PTFs showed high performances (EF > 0.50, RMSE  0.24). New PTF has been developed using the entire database. The proposed PTF (BD = 1.449e−0.03OC, R2 = 0.6802) requires only the organic carbon content as input. The developed PTF was compared to the best 10 performing PTFs evaluated in the study using dataset of 45,195 samples. The results showed that the new PTF had the best performance (EF = 0.59, RMSE = 0.13 Mg m−3). Keywords: Pedotransfer functions, Bulk density, SSURGO database, Organic carbon

Subjects by Vocabulary

Microsoft Academic Graph classification: Soil water Soil database Total organic carbon Pedotransfer function Soil science Environmental science Bulk density Forensic engineering


Engineering (General). Civil engineering (General), TA1-2040, General Engineering

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