Evolution de la législation en matière d’autocontrôle pour les petites entreprises

Conference given outside the academic context (2006)

L'évolution de la PAC : hier, aujourd'hui et demain ?

Conference given outside the academic context (2004)

Evolution de la pauvreté au Vietnam : quelques réflexions

in Hanoi University of Agriculture; Francophone Joint University Council (CIUF) (Eds.) Proceedings of Scientific Research Results - Institutional University Cooperation Program 2008-2012 (2013)

Évolution de la production d’anticorps anti-PMSG en fonction de la dose et du nombre d’injections : relation avec la productivité des lapines

(1998)

L’évolution de la recherche sur la participation politique des immigrés et de leurs descendants en Belgique

Scientific conference (2005, April 29)

Evolution de la répartition de la loutre d'Europe (Lutra lutra) au Maroc

Conference (2012, May)

Evolution de la rétention d'eau et de la morphologie de la fibre au cours de l'hydrolyse enzymatique de la cellulose

in Holzforschung : International Journal of the Biology, Chemistry, Physics, & Technology of Wood (1981), 35

Évolution de la Terre et de la vie pendant les quatre premiers milliards d’années.

Conference (2009)

Evolution de la théorie du portefeuille et de la comptabilité

in Bair, Jacques; Henry, Valérie (Eds.) Regards croisés sur Les méthodes quantitatives de gestion. En hommage aux Prs Christian De Bruyn et René Moors (2004)

Evolution de la végétation du secteur sud de la tourbière haute active de la fagne Wallonne, au cours de ces 60 dernières années (Plateau des Hautes-Fagnes, Belgique)

in Belgian Journal of Botany (1998), 131(1), 28-40

Evolution of the vegetation in the southern part of the fagne Wallonne raised bog, during the last 60 years (Hautes- Fagnes, Belgium). – Less than 500 years ago, raised bogs covered over 1000 ha on the ... [more ▼]

Evolution of the vegetation in the southern part of the fagne Wallonne raised bog, during the last 60 years (Hautes- Fagnes, Belgium). – Less than 500 years ago, raised bogs covered over 1000 ha on the Hautes-Fagnes plateau. Today, only + 125 ha of ombrotrophic little disturbed raised bogs remain. Recent studies have proved that these remnants show evidences of typical peat-forming communities regression. The aim of this study is to follow the vegetation dynamic of the southern part of the fagne Wallonne raised bog, by comparison of old and recent vegetation transects made in 1938, 1957 and 1995 and to detect in it some possible signs of evolution or regression. The vegetation has been mapped at 1 :10 scale and qualitatively surveyed on 4 m2 plots each 20 m along the transect. The cover degree of each species has been estimated. The results show a large reduction of the cover degree of Sphagnum species, an almost disappearance of the "Schlenken" and an increase of heathland species. These results are compared with the observations for the northern and the central zones (HINDRYCKX 1989). The damage to the typical raised bog vegetation is very clear and important in the northern part of the bog: disappearance of typical species overgrown by Molinia caerulea. In the central and the southern parts, the increasing cover degree of ericaceous plants indicates clearly that the peat forming activity is strongly slowed down. [less ▲]