Abstract
Soil water characteristics can be estimated accurately from the clay content and cation exchange capacity (CEC) values of soils. The clay with its very large adsorption surface and CEC which reflects the negative charge of clays, is jointly responsible for adsorbing di-polar water molecules. Formulae relating clay content and CEC to soil water content at matric potentials of −33, −80, −500 and −1500 kPa were calculated using the results obtained with the pressure membrane technique on 100 soil samples and then validated with a further 200 soil sample measurements. Clay content and CEC accounted for more than 93% of the variability in soil water at the four measurement points.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
