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687GEOSTATS: interpolating pH values

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  • Kim Bryceson
    Feb 4, 1998
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      We are creating interpolated regional scale maps of various soil
      characteristics One of which is pH as measured in CaCl2. Given that pH is
      measured on a logarithmic scale in the "vertical" plane so-to-speak...do we
      have a theoretical problem in interpolating it in the "horizontal" plane using
      ordinary kriging where the estimates for non-sampled regions are made on a
      non-log basis?

      >From a management map perspective classified to pH ranges of interest, I am
      thinking there is no problem - but from a theoretical accuracy perspective
      there is debate in the Lab and we would appreciate comments



      Kim Bryceson BSc(Hons) METM, PhD
      Program Leader, Land Assessment & Policy Unit / Senior Research Fellow (GIS)
      CRC Soils & Land Management / Dept Agron & Farm Systems
      Hannaford Building, Waite Campus / Adelaide University
      University of Adelaide, SA 5064.
      Tel: (08) 83036522 Fax: (08) 83036711
      Email: kbryceso@...
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