Evaluation of Pedotransfer Functions for Estimating Soil Water Retention Curve of Saline and Saline-Alkali Soils of Iran

doi:10.1016/S1002-0160(11)60122-7

Pedosphere

Volume 21, Issue 2, April 2011, Pages 230-237

https://doi.org/10.1016/S1002-0160(11)60122-7 Get rights and content

Abstract

Soil water retention data are essential for irrigation scheduling and determination of irrigation frequency. However, direct measurement of this characteristic is time consuming and expensive and furthermore its spatial and temporal variabilities in field scales increase the number of measurements. Different pedotransfer functions, such as Saxton et al., Campbell, Vereecken et al., Rawls and Brakensiek, Wösten et al., Rajkai et al., Ghorbani Dashtaki and Homaee, Zacharias and Wessolek, and Rosetta, were evaluated to estimate soil water retention of saline and saline-alkali soils collected from south of Tehran, Iran. The saturation-extract conductivity of all the 68 samples and exchangeable sodium percentage of more than half of them were measured to be greater than 4 dS m⁻¹ and 15%, respectively. The calculated Akaike's information criterion values showed that Saxton et al. and Campbell models were the best in estimation of soil water retention curve and total available water, respectively.

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Evaluation of Pedotransfer Functions for Estimating Soil Water Retention Curve of Saline and Saline-Alkali Soils of Iran

Abstract

Geoderma.

Agr. Water Manage.

Geoderma.

Soil Till. Res.

Geoderma.

Geoderma.

Soil Till. Res.

Geoderma.

Soil Till. Res.

J. Hydrol.

Geoderma.

Geoderma.

Geoderma.

Geoderma.

Bulk density

Transfer functions and threshold values: from soil characteristics to land qualities

Hydraulic Properties of Porous Media. Hydrology Paper No. 3

Soil Physics with Basic

Developing joint probability distributions of soil water retention characteristics

Water Resour. Res.

Empirical equations for some soil hydraulic properties

Water Resour. Res.

Evaluation of pedotransfer functions for predicting the soil moisture retention curve

Soil Sci. Soc. Am. J.

Particle-size analysis

Evaluation of soil texture data for estimating soil water retention curve

Can. J. Soil Sci.

Point pedotransfer functions for estimating soil water retention curve

Int. Agrophys.

Using geometric mean particle diameter to derive point and continuous pedotransfer functions