Hyperlink 16. To What Volume of Soil Do Discrete Samples Apply?

While the volume of soil represented by ISM samples is defined by the demarcation of the DUs, to be useful, discrete samples must also apply to some volume of soil in a decision. However, the volume of soil to which discrete samples apply is often ambiguous, determined after samples are collected and analyzed, and subject to the vagaries of the allocation approach used. Vastly different volumes of soil will be determined based on the allocation approach used. Some of the various allocation approaches are provided below.

Each of these approaches potentially results in different decisions over vastly different volumes of soil when using the same discrete data.