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本文比较了几种常用的估计土壤空间变异的计算方法，介绍了析取克里格的理论和计算方法，给出计算区域地下水埋深分布的实例，并对普通克里格和析取克里格的计算方差作了比较．
This paper compares several commonly used calculation methods for estimating soil spatial variability, introduces the theory and calculation methods for extracting kriging, and gives examples of the distribution of groundwater depth in the calculation area, and discusses common kriging and disjunction kerry. The variance of the grid was compared.