Forest science in support to international negotiation on climate change and its local consequences. This article gives an analysis of the major scientific questions underlying the decision making process dealing with forest monitoring under the topic land use, land use change and forestry as a driving force for climate change. It first gives the major scientific findings used as guidelines for political decisions since 1988.

Sustainable management of sites affected by past industrial activities in Wallonia: the stakes and the challenges of “risk assessment” within the framework of the new policy developments on (local) soil pollutions. Risk-based land management is a concept that stands out more and more frequently in soil policies adopted by different European countries, as well as within the framework of the future European directive on soil protection.

Development of a cartographic mdel for the forest site types delineation in the Belgian Ardenne. The paper presents an original method dealing with the forest site types delineation. The suggested method consists in integrating a typological key in a GIS aiming at producing a thematic map that describes forest site types. Data used are the soil map of Belgium (digitized at the scale 1:20,000) and a digital elevation model built from a topographic map (scale 1:10,000). The typological key is mainly based on the methodology used by Thill et al.