Soil-landscape modelling and spatial prediction of soil attributes |
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| Authors: | P E GESSLER I D MOORE N J McKENZIE P J RYAN |
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| Institution: | 1. CSIRO Division of Soils , GPO Box 639, Canberra, ACT 2601;2. Australia and Centre for Resource &3. Environmental Studies, Australian National University , Canberra, Australia E-mail: paulg@cbr.soils.csiro.au;4. Centre for Resource &5. Environmental Studies, Australian National University , Canberra, Australia;6. CSIRO Division of Soils , GPO Box 639, Canberra, ACT 2601, Australia;7. CSIRO Division of Forestry , Canberra, Australia |
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| Abstract: | Abstract Explicit and quantitative models for the spatial prediction of soil and landscape attributes are required for environmental modelling and management. In this study, advances in the spatial representation of hydrological and geomorphological processes using terrain analysis techniques are integrated with the development of a field sampling and soil-landscape model building strategy. Statistical models are developed using relationships between terrain attributes (plan curvature, compound topographic index, upslope mean plan curvature) and soil attributes (A horizon depth, Solum depth, E horizon presence/absence) in an area with uniform geology and geomorphic history. These techniques seem to provide appropriate methodologies for spatial prediction and understanding soil landscape processes. |
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