Sur les forêts humides d'afrique tropicale

Univ Europeenne - EAN : 9786131528316
SENTERRE-B
Édition papier

EAN : 9786131528316

Paru le : 9 déc. 2011

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  • EAN13 : 9786131528316
  • Réf. fournisseur : 5359600
  • Editeur : Univ Europeenne
  • Date Parution : 9 déc. 2011
  • Disponibilite : Disponible
  • Barème de remise : NS
  • Nombre de pages : 476
  • Format : H:229 mm L:152 mm E:27 mm
  • Poids : 694gr
  • Interdit de retour : Retour interdit
  • Résumé : In this work, a new approach is proposed on the problem of typology in rain forests, focusing on zonal and non-zonal forest types. The links between phytogeography and phytosociology approaches are discussed, at the scale of the guineo-congolian region, and the homologies are emphasized leading to an "open" conception of hierarchical classifications. A new nested plot method is proposed for the typology of tropical rain forests, based on a structural definition of forest strata, and is applied to study sites from Atlantic (Equatorial Guinea) to continental (Cameroon) central Africa, and from sea level to 1300 m. There are 3 main results in the present study. First, a floristic, physiognomic, functional and phytogeographical description of the main forest types of Atlantic central Africa is proposed, including a synthetic map of guineo-congolian rain forests. Second, the theory of ecological transgressions and the replaceability of ecological factors are illustrated by many examples. Third, a foothill refuge hypothesis is proposed, which differs from montane and fluvial refuges by its typically zonal nature.
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