Thursday, March 22, 2018 at 12:20pm to 1:10pm
The practical purpose of soil mapping is to divide the continuous soil cover into relatively homogeneous segments, for which interpretations can be made for a variety of land uses, or for which parameters can be extracted for a variety of environmental models. Unfortunately, the designers of Soil Taxonomy decided to use the soil series as the lowest level of a six-level soil classification hierarchy, thereby unncessarily complicated soil mapping and soil survey interpretation. Further, the emphasis on relatively permanent soil properties ignores important medium-term differences in soil properties that can have an important effect on soil functions. Finally, evaluations of mapping accuracy are often unncessarily pessimistic, since traditional methods ignore similarity between classes. This seminar will examine these three problems and propose solutions.