And it greatly increases the accuracy of the data. If you treat soil sampling as simply a mathematical problem, you will spend too much money. Smaller grid cells are appropriate for small features, large cells for larger features. For small features, each grid cell should be several times smaller than the feature so that we get at a minimum of three samples per feature. Medium features may be covered by 5-10 grid cells.
More cells increase the confidence.
Large features never need more than 30 cells. Analysis Don't blindly believe all the lab sample results. Overlay the sample results on top of the feature map. See how they fit. Perhaps some samples need to be discarded.