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. Eijkelkamp Agrisearch Equipment supplies a comprehensive air permeameter set to measure air permeability, soil moisture tension and volume percentage soil moisture in the field and in the laboratory.

14.34 Air permeameter to measure and register the air permeability of soil and soil samples (in situ and in the laboratory)
The very comprehensive set includes a standard air permeameter for connection to various types of measuring chambers. In the set 3 different chambers are included to measure:

· homogeneous flow according to Darcy, with integrated pressure sensor;
· in-homogeneous flow in undisturbed soil;
· air pemeabilty in undisturbed samples.

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