An Introduction to Soil and Water Infiltration

Influence of Rangeland Land Cover on Infiltration Rates, Field-Saturated Hydraulic Conductivity, and Soil Water Repellency in Southern Patagonia

“…Because soils under each land cover were classified as sandy loam soils, the α * value used in this study was 0.012 mm –1 . This value is also suggested by Angulo-Jaramillo et al (2016) and Bagarello et al (2014), corresponding to “most soils with a structure and medium and fine sands” (Elrick and Reynolds 1992) or with “Moderate” capillarity (see Bagarello et al (2014) for details on the derivation of Eq. 1).…”

“…When the first volume had thoroughly infiltrated, a second known volume of water was added to the cylinder, and the time required to infiltrate was measured (cumulative time). This procedure was repeated until three steady measurements were recorded (Angulo-Jaramillo et al 2016). The obtained data were used to calculate the initial infiltration rates (IIR, in mm h –1 ) at time = 0, using nonlinear regression fitting, infiltration rates (IR, in mm h –1 ) during measurement, and accumulated infiltration (AI, in mm), corresponding to the total accumulated volume at a specific period during the infiltration measurement.…”

“…The obtained data were used to calculate the initial infiltration rates (IIR, in mm h –1 ) at time = 0, using nonlinear regression fitting, infiltration rates (IR, in mm h –1 ) during measurement, and accumulated infiltration (AI, in mm), corresponding to the total accumulated volume at a specific period during the infiltration measurement. The field-saturated hydraulic conductivity (K fs , in mm h –1 ) was calculated as follows (Angulo-Jaramillo et al 2016):…”

Assessment of Soil Infiltration Capability in Balikpapan City

“…Infiltration is the process of water flowing into the soil and causing an increase in total water content, contributing to variations in water partitions and hydrological responses [2]- [4]. Infiltration is important in hydrology because this process regulates available water reserves for groundwater filling and controls water runoff and soil erosion [5]. Infiltration rate measurements generally use the Horton Model.…”