Determination of the water permeability, also called hydraulic conductivity, is important for agricultural as well as for environmental soil research. On the basis of the permeability factor (K-factor) irrigation and drainage systems are designed. Also with respect to the extent of the spreading of possible pollution the permeability factor of the soil is of great importance. The permeability of the soil can be determined in the laboratory as well as directly in the field.
The Guelph permeameter is a ‘constant head’ permeameter that operates in accordance with the principle of the Mariotte bottle. After boring a hole the Guelph permeameter is placed. The water from the permeameter slowly flows into the auger hole and penetrates into the soil. At a certain moment a saturated ‘bulb’ is formed and the out-flow of water from the storage cylinder reaches a constant value (that is measured). For more details
The Aardvark Permeameter is the very first automated Constant Head Borehole Permeameter. The Aardvark sets up in minutes and automatically records reading for water consumption rate. In minutes it will automatically determine Steady State, calculate Steady State Water Consumption Rate and then give you the Saturated Hydraulic Conductivity (K value). For more details
The soil pore system is dependent on the quantity, shape and continuity of pores. It can be described by the water and air permeability of the soil. Permeability to fluids is quantified by hydraulic conductivity or air permeability, respectively. We supply a comprehensive air permeameter set to measure air permeability, soil moisture tension and volume percentage soil moisture in the field and in the laboratory.
The ring infiltrometer may be used for determining the rate of infiltration and capacity for irrigation and drainage projects, studying drainage, determining the intensity of artificial precipitation and the effect of treatment of the soil. As vertically infiltrated water runs away to the sides, the outer ring of the infiltrometer serves as a separation. The measurements exclusively take place in the inner ring through which the water runs virtually vertical.
The tension infiltrometer measures the hydraulic properties of unsaturated soil. Water held under tension infiltrates into a dry soil through a highly permeable nylon membrane. The time dependent infiltration rate is used to calculate unsaturated hydraulic conductivities and related hydraulic properties. Infiltration rates are recorded manually. For more details
Water movement in soil is spatially variable. The Portable Infiltrometer is a quick way to test unsaturated hydraulic conductivity and infiltration rates.
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