Intérêt d'une stratification pédologique pour la constitution de référentiels régionaux sur les teneurs en éléments traces métalliques dans les sols de Wallonie

Pertinence of pedological stratification of regional-scale reference systems about metallic trace elements content in soils.Walloon case studies. The natural background levels of metallic trace elements (ETM) in soils should be known in order (i) to understand the processes in which they are involved and (ii) to settle reference systems dedicated to the appraisal of agricultural or forest management practices, to the detection of contaminations, or to the time-course follow-up of regional values. A methodological framework has thus been set up to evaluate the importance of natural driving fact... Mehr ...