Flux d'énergie et cycles de matière en tant que processus écologiques

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Ecosystem, open thermodynamic system. The oak forest of Virelles-Blaimont

An attempt is made to apply thermodynamics of irreversible processes to a forest ecosystem. It is assumed to consist of two open subsystems with chemical reactions (living organisms and abiotic environment) included in one closed system. Entropy flow and entropy production are considered taking into account entropy calculation of incoming and outgoing radiant energy. Some figures are given for the oak mixed forest of Virelles-Blaimont for one vegetation period. Estimated values are calculated for the whole biospheric-atmospheric system. © 1978 Springer-Verlag.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Recherches sur l'écosystème forêt :La chênai mélangée calciole de Virelles-Blaimont. Le mécanisme du refroidissement nocturne de l'air en forêt et hors forêt

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Flux et transferts d'énergie au niveau des écosystèmes forestiers

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Rythmes énergétiques et phénophases en chênaie calcaire

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Les équilibres des milieux naturels et leur destruction

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Budgets et bilans dans l'écosystème forêt

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Approche énergétique et cybernétique de la hêtraie

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Contribution to the Macrophytic Typology of Belgian Reference Watercourses

peer reviewedThe objective of the study is to create a typology of macrophytes for the reference watercourses of the Meuse River catchment basininWalloniaasasteptowardstheimplementationoftheEuropeanWaterFrameworkDirective.The50sitesstudiedarethe objectofaphysicochemicalandenvironmentalcharacterizationfollowedbyafloristicsurvey(phanerogams,mosses,liverworts, andmacroalgae).Sixclustersofwatercourseswiththeircharacteristicspeciesarehighlightedbytwo-wayclusteringandindicator species. The abundance of phanerogams in some watercourses of the Arden region is not only linked to light intensity but also dependsonthedegreeofslopeandthenatureofthegeologicalsubstrateDéfinition des conditions de référence des cours d'eu wallon