Estimation of soil aggregate stability indices using artificial neural network ‎and multiple linear regression models

Maryam Marashi, Ali Mohammadi Torkashvand, Abbas Ahmadi, Mehrdad Esfandyari


During recent decades, an artificial intelligence system has been used for developing the pedotransfer functions (PTFs) for estimation of soil properties. In the present study, the capabilities of multiple linear regression (MLR) and artificial neural networks (ANNs) in developing PTFs for estimating mean weight diameter (MWD) from routine soil properties (P1) and combination of routine soil properties and fractal dimension of aggregates (P2) were evaluated. The results showed that the ANN model for estimating MWD is more accurate than the MLR model. Application of fractal dimension of aggregates as a predictor in both methods improved the accuracy of PTFs.

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