Evaluation of different methods for the determination of saturated hydraulic conductivity for simulation of water table depth and drainage discharge using the DRAINMOD computer simulation model

2012 ◽  
Vol 58 (8) ◽  
pp. 887-901 ◽  
Author(s):  
Nahid Nabi-Sichani ◽  
Ali Reza Sepaskhah
Keyword(s):  
Computer Simulation ◽  
Hydraulic Conductivity ◽  
Simulation Model ◽  
Water Table ◽  
Saturated Hydraulic Conductivity ◽  
Water Table Depth ◽  
Computer Simulation Model

scholarly journals DETERMINATION OF HYDRAULIC CONDUCTIVITY BY THE AUGER HOLE METHOD

2018 ◽  
Vol 3 (1) ◽  
pp. 91
Author(s):  
Oswaldo Palma Lopes Sobrinho ◽  
Stephanie Soares Arriero ◽  
Gerlange Soares da Silva ◽  
Aline Bezerra de Sousa ◽  
Álvaro Itaúna Schalcher Pereira
Keyword(s):  
Hydraulic Conductivity ◽  
Water Table ◽  
Main Parameter ◽  
Saturated Hydraulic Conductivity ◽  
Agricultural Drainage ◽  
Empirical Formulas ◽  
Drainage Systems ◽  
Average Value ◽  
Drainage Capacity

The hydraulic conductivity of a soil is the main parameter that determines its drainage capacity. However, its determination is of great importance for sizing in agricultural drainage systems. To determine the hydraulic conductivity of the soil in the presence of water table through the Auger-Hole. The experiment was carried out at Embrapa Manioc and Fruticulture (EMBRAPA), located in the municipality of Cruz das Almas-BA. In order to estimate the hydraulic conductivity, several empirical formulas have been proposed, such as Ernst's, which is the model that most closely approximates the soil situation studied. The hydraulic conductivity values for the studied soil obtained by the Auger-Hole method ranged from 0.24821 to 0.28544 m day-1. With an average value for hydraulic conductivity of 0.266835 m day-¹, being considered slow. The soil under analysis is classified in slow saturated hydraulic conductivity. The Auger-Hole method proved to be practical, fast, safe and easy to handle.

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