Much of this handbook is concerned with how to take measurements once you are at a
sampling site, a predetermined point in the landscape. Much of this chapter, however, deals
with how the location of those measurement sites is determined. As will be discussed below,
the problem of choosing the location of measurement points is one that occurs at several
different scales. At one scale, we have to choose where the whole study will be located. At
another, we need to choose where at an individual sampling site cores for soil chemical …