CJEES

Home
Peer Review
Editorial Board
Instructions
Early Access
Latest Issue
Past Issues
Contact
Impact Factor
Reject Rate

 
You are here: Home » Online First » Volume 19, 2024 - Number 1 » ESTABLISHING THE FIRST DATABASE OF SOIL HYDRAULIC PROPERTIES IN TUNISIA BASED ON PEDOTRANSFER FUNCTIONS, Carpathian Journal of Earth and Environmental Sciences February 2024, Vol. 19, No. 1, p. 61 – 72; DOI:10.26471/cjees/2024/019/280


« Back

Rania HESSINE,1,2, Samir GHANNEM1,2, Sana BEN MARIEM2, Essaid BILAL3*& Sabri KANZARI,2
1Laboratory of Environment Bio-monitoring, Faculty of Science of Bizerte, University of Carthage, Tunisia.
2National Institute of Rural Engineering, Waters and Forestry, University of Carthage, Ariana 2080, Tunisia
3Ecole Nationale Supérieure des Mines de Saint Etienne, CNRS UMR 5600 EVS, F42023 Saint Etienne, France bilalessaid@gmail.com


ESTABLISHING THE FIRST DATABASE OF SOIL HYDRAULIC PROPERTIES IN TUNISIA BASED ON PEDOTRANSFER FUNCTIONS, Carpathian Journal of Earth and Environmental Sciences February 2024, Vol. 19, No. 1, p. 61 – 72; DOI:10.26471/cjees/2024/019/280

Full text

Abstract:

Soil hydraulic properties play a crucial role in the unsaturated soil water supply process. Currently, Tunisia lacks a database containing essential values for soil retention properties and soil saturated hydraulic conductivity. The main objective of this study is to create the inaugural soil hydraulic properties database through the utilization of open-access data and pedotransfer functions (PTFs). To achieve this goal, the harmonized world soil database (FAO) was employed to identify 752 measurement points across Tunisia. Subsequently, the soil texture, organic carbon content, and bulk density were determined at each point. These acquired values were then entered into the CalcPTF software to estimate the van Genuchten soil retention parameters. The calculation of soil saturated hydraulic conductivity was accomplished using two widely recognized pedotransfer functions (Saxton and Rosetta). The outcomes facilitated the creation of a catalog containing soil hydraulic parameter value for each soil texture. Significance of discrepancies between values obtained from the PTFs was assessed using a Tukey test. The spatial variability of each soil hydraulic property was studied using the simple kriging. In conclusion, the establishment of this significant soil hydraulic properties database holds diverse applications in agricultural, hydrological, and environmental studies in Tunisia.



Keyword: Soils; Soil water retention; Saturated hydraulic conductivity; van Genuchten model; Pedotransfer function; Tunisia


(c) 2006 - 2024 , Publisher-Asociația Carpatică de Mediu și Științele Pământului (Carpathian Association of Environment and Earth Sciences)