Determination of Cation Exchange Capacity from Soil Water Retention Curve

2017 ◽  
Vol 143 (6) ◽  
pp. 04017023 ◽  
Author(s):  
Morteza Khorshidi ◽  
Ning Lu
2015 ◽  
Vol 23 (3) ◽  
pp. 33-36 ◽  
Author(s):  
Michal Kupec ◽  
Peter Stradiot ◽  
Štefan Rehák

Abstract Soil water retention curves were measured using a sandbox and the pressure plate extractor method on undisturbed soil samples from the Borská Lowland. The basic soil properties (e.g. soil texture, dry bulk density) of the samples were determined. The soil water retention curve was described using the van Genuchten model (Van Genuchten, 1980). The parameters of the model were obtained using the RETC program (Van Genuchten et al., 1991). For the determination of the soil water retention curve parameters, two pedotransfer functions (PTF) were also used that were derived for this area by Skalová (2003) and the Rosetta computer program (Schaap et al., 2001). The performance of the PTFs was characterized using the mean difference and root mean square error.


2011 ◽  
Vol 34 (5) ◽  
pp. 103590
Author(s):  
L. D. Suits ◽  
T. C. Sheahan ◽  
Rodrigo Martins Reis ◽  
Wagner Nogueira Sterck ◽  
Artur Bastos Ribeiro ◽  
...  

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