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1985
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Generation Procreation Pangenesis Amphimixis French Guiana Department of Guiana Guyane française Reproduction forestière Régénération forestière Reproduction (sylviculture) Département de la Guyane GuyaneCiter ce document
Bernard Riera, « Importance des buttes de déracinement dans la régénération forestière en Guyane française », Revue d'Écologie (La Terre et La Vie) (documents), ID : 10.3406/revec.1985.5287
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Résumé
Cecropia obtusa is the first pioneer tree to appear after clear felling on the Piste de St. Elie study site, French Guiana ; in natural forest gaps, its seedlings grow preferentially on treefall mounds. A study of the microclimatic conditions prevailing on such treefall mounds shows that Cecropia obtusa seedlings are more often found on a given mound in locations where the soil temperature ranges are the greatest, i.e. close to those prevailing on more open ground where Cecropia obtusa generally thrives. A field experiment carried out with Cecropia obtusa seeds sown in different locations within forest gaps and on treefall mounds shows that seedling survival is definitely influenced by their location.