20. Spatial Arrangement of Soils: Soilscapes and Map Units

  1. S. W. Buol B.S., M.S., Ph.D.1,
  2. R. J. Southard B.S, M.S., Ph.D.2,
  3. R. C. Graham3 and
  4. P. A. McDaniel B.S., M.S., Ph.D.4

Published Online: 5 AUG 2011

DOI: 10.1002/9780470960622.ch20

Soil Genesis and Classification, Sixth Edition

Soil Genesis and Classification, Sixth Edition

How to Cite

Buol, S. W., Southard, R. J., Graham, R. C. and McDaniel, P. A. (2011) Spatial Arrangement of Soils: Soilscapes and Map Units, in Soil Genesis and Classification, Sixth Edition, Wiley-Blackwell, Oxford, UK. doi: 10.1002/9780470960622.ch20

Author Information

  1. 1

    North Carolina State University, Raleigh, USA

  2. 2

    University of California, Davis, USA

  3. 3

    University of California, Riverside, USA

  4. 4

    University of Idaho, Moscow, USA

Publication History

  1. Published Online: 5 AUG 2011
  2. Published Print: 2 SEP 2011

ISBN Information

Print ISBN: 9780813807690

Online ISBN: 9780470960622



  • spatial arrangement of soils - soilscapes and map units;
  • spatial distribution of earth's soils - its components, soil and landscape patterns, or soilscapes;
  • soil map unit, composed of delineations - spatially associated soil individuals or soilscapes;
  • distinction, between soil taxa and soil map units - taxonomic soil classes (taxa);
  • soil map unit, identifying area of land - and identifying soils present by taxonomic soil names;
  • kinds of soil map units - representations of spatial distribution of classified objects;
  • map scale - a reduced-scale representation, of spatial distribution of objects;
  • orders and standards of soil surveys - specific information, on nature of soil resources;
  • users of soil surveys - pressing for quantification of soil variability, and statistical data;
  • quantifying spatial variability, in map units - among pedons in a soilscape, natural


This chapter contains sections titled:

  • Definitions

  • Distinction between Soil Taxa and Soil Map Units

  • Kinds of Soil Map Units

  • Orders and Standards of Soil Surveys

  • Assessing Map Unit Composition

  • Relation Between Soilscape and Soil Classification

  • Perspective