Derivation of soil-attribute estimations from legacy soil maps

N.P. Odgers, Karen Holmes, T. Griffin, C. Liddicoat

    Research output: Contribution to journalArticle

    8 Citations (Scopus)

    Abstract

    © CSIRO 2015. It is increasingly necessary to apply quantitative techniques to legacy soil polygon maps given that legacy soil maps may be the only source of soil information over large areas. Spatial disaggregation provides a means of extracting information from legacy soil maps and enables us to downscale the original information to produce new soil class maps at finer levels of detail. This is a useful outcome in its own right; however, the disaggregated soil-class coverage can also be used to make digital maps of soil properties with associated estimates of uncertainty. In this work, we take the spatially disaggregated soil-class coverage for all of Western Australia and the agricultural region of South Australia and demonstrate its application in mapping clay content at six depth intervals in the soil profile. Estimates of uncertainty are provided in the form of the 90% prediction interval. The work can be considered an example of harmonisation to a common output specification. The validation results highlighted areas in the landscape and taxonomic spaces where more knowledge of soil properties is necessary.
    Original languageEnglish
    Pages (from-to)881-894
    JournalSoil Research
    Volume53
    Issue number8
    DOIs
    Publication statusPublished - 2015

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    soil
    soil properties
    uncertainty
    soil property
    South Australia
    digital map
    Western Australia
    soil profiles
    quantitative analysis
    polygon
    clay
    soil profile
    prediction
    soil map
    attribute

    Cite this

    Odgers, N.P. ; Holmes, Karen ; Griffin, T. ; Liddicoat, C. / Derivation of soil-attribute estimations from legacy soil maps. In: Soil Research. 2015 ; Vol. 53, No. 8. pp. 881-894.
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    Odgers, NP, Holmes, K, Griffin, T & Liddicoat, C 2015, 'Derivation of soil-attribute estimations from legacy soil maps' Soil Research, vol. 53, no. 8, pp. 881-894. https://doi.org/10.1071/SR14274

    Derivation of soil-attribute estimations from legacy soil maps. / Odgers, N.P.; Holmes, Karen; Griffin, T.; Liddicoat, C.

    In: Soil Research, Vol. 53, No. 8, 2015, p. 881-894.

    Research output: Contribution to journalArticle

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    AB - © CSIRO 2015. It is increasingly necessary to apply quantitative techniques to legacy soil polygon maps given that legacy soil maps may be the only source of soil information over large areas. Spatial disaggregation provides a means of extracting information from legacy soil maps and enables us to downscale the original information to produce new soil class maps at finer levels of detail. This is a useful outcome in its own right; however, the disaggregated soil-class coverage can also be used to make digital maps of soil properties with associated estimates of uncertainty. In this work, we take the spatially disaggregated soil-class coverage for all of Western Australia and the agricultural region of South Australia and demonstrate its application in mapping clay content at six depth intervals in the soil profile. Estimates of uncertainty are provided in the form of the 90% prediction interval. The work can be considered an example of harmonisation to a common output specification. The validation results highlighted areas in the landscape and taxonomic spaces where more knowledge of soil properties is necessary.

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