Journal article

Identification and interpretation of sources of uncertainty in soils change in a global systems-based modelling process

NJ Robinson, KK Benke, S Norng

Soil Research | CSIRO PUBLISHING | Published : 2015


In the past, uncertainty analysis in soil research was often reduced to consideration of statistical variation in numerical data relating to model parameters, model inputs or field measurements. The simplified conceptual approach used by modellers in calibration studies can be misleading, because it relates mainly to error minimisation in regression analysis and is reductionist in nature. In this study, a large number of added uncertainties are identified in a more comprehensive attention to the problem. Uncertainties in soil analysis include errors in geometry, position and polygon attributes. The impacts of multiple error sources are described, including covariate error, model error and la..

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