Spatial Sampling Designs - Sampling Spatial Units for Agricultural Surveys - page 192

The semivariogram is a very important tool for planning a spatial design. It
provides information on the structure of the population. This can be used in
exploratory mode, and also to partition the observed region into zones that
optimize the sampling design.
Several issues remain open for future research. They are generally related
to the theoretical derivation of the π kl s, which would result in a wide range of

advantages. A theoretical framework is, of course, important, and allows us to
study the properties of each design

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