carte des sols; Belgique; Wallonie; archives; GlobalSoilMap; connaissance experte; soil map; Belgium; Wallonia; legacy data; expert knowledge
Abstract :
[en] Belgium is covered with large-scale soil map and high density of historical profiles, now available in a numerical format. This papier first gives an overview of the soil properties which can be predicted from these documents, in combination with the legacy data, and of the uncertainty we can expect for now. The great potential of the soil map is highlighted, as well as its complexity. Example of the soil depth to rock points out the need of a thorough understanding of the soil map in order (i) to interpret correctly the information hidden behind each symbols or emerging from their combination and (ii) to take into account the sub-regional features. Expert knowledge seems essential, associated with historical and new hard data, in order to build a rich and confident map which respects the recommendations of the GlobalSoilMap.net project.
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