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Write 2 page essay on the topic Hydraulic Conductivity in Soils.A Polish dataset is useful in illustrating this model (Dexter & Richard, 2009). To make an estimate of the limit of a macro-pore term, i

Write 2 page essay on the topic Hydraulic Conductivity in Soils.

A Polish dataset is useful in illustrating this model (Dexter & Richard, 2009). To make an estimate of the limit of a macro-pore term, it is essential to use the measured values of curves obtained when there is water retention. It also involves using other measured values obtained from identifying the bulk density and K-sat. Additionally, for the 42 Polish arable soils there are distributions and mean values of macropore limits (Dexter & Richard, 2009). However, having such macro pore limits does not guarantee there will be hydraulic conductivity in the soil. For example, these parameters are usually found in fields during a harvest and in most cases, they do not lead to hydraulic conductivity. In the field, water movement occurs through the use of structural pores. The flow of water also goes through macro-pore spaces which are prevalent in soil that is freshly plowed.

To determine the value of saturated hydraulic conductivity in soils, there are different scenarios to look at. One of the scenarios is that in theory it is known that soil tends to become dense when there is a decrease in structural pores (Dexter & Richard, 2009). However, this is not determined by observations. This leads to the conclusion that it is the number of structural pores in the soil that determines the density and not their size. The multi-modal nature of the soil’s pore size distribution is the key determining factor of the soil’s water retention levels and the value of saturated hydraulic conductivity. Therefore, this improves our understanding of the soil’s structure and function because of the ability to make physical predictions of its hydraulic characteristics.

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