Description: Objectives: Bertholletia excelsa Humb. and Bonpl. is one of the protected tree species of Amazonia in Brazil although classified as vulnerable acc. to IUCN. It is prohibited to fell trees and use their timber. However, the fruits, commonly known as Brazil nuts, can be harvested for local consumption and export. The objective of the project is to investigate a natural primary forest in Roraima, Brazil and assess the commercial potential for harvesting nuts, with special reference to international sustainability criteria. Although there has been no timber harvest in the forest in the past, nuts have been collected extensively by the local population - mainly for sale on the local markets. These activities were stopped in 2004. The research is closely connected to the natural forest management project. Results: Results are not yet available. However, preliminary data analyses reveal that - there is hardly any correlation between size of mother trees and available regeneration or available fruit mass located on the ground around those trees; - the amount of nuts per tree (approx. greater than 60 cm dbh) is very variable; - regeneration (seedlings and advanced growth) is sparse which makes long-term survival of the species questionable if collection of nuts in continued like in the past.
SupportProgram
Origins: /Bund/UBA/UFORDAT
Tags: Main ? Obstbau ? Nuss ? Textilchemikalien ? Baum ? Baumfällung ? Holzeinschlag ? Ernte ? Nachhaltiger Konsum ? Daten ? Konsum ? Naturwald ? Frucht ? Urwald ? Bevölkerung ? Forschung ? Forstwirtschaft ? Nachhaltigkeit ? Wald ? Naturpotential ? Potenzial ? Markt ? verfügbar ? Baustoff, Holz ? Dauer ? Einsatz ? Ergebnis ? Kriterium ? Projekt ? Referenz ? Regeneration ? Sämling ? Verbrauch ? Wachstum [biologisch] ? abholen ? besonder ? bewerten ? ein- ? fortschrittlich ? nichtöffentlich ? Art [Spezies] ? Überleben ? Bemessung ? Betrag ?
Region: Hamburg
License: cc-by-nc-nd/4.0
Language: Englisch/English
Time ranges: 2006-01-01 - 2006-12-31
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