Determining the optimal harvest cycle for copaiba (Copaifera spp.) oleoresin production

Autor(es)

Klauberg, Carine ^[1] ; Vidal, Edson ^[1] ; Rodriguez, Luiz C. E. ^[1] ; Diaz-Balteiro, Luis ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Forest Sci, Escola Super Agr Luiz de Queiroz, BR-13418900 Piracicaba, SP - Brazil

^[2] Tech Univ Madrid, Dept Forestry Econ & Management, Madrid 28040 - Spain

• Tipo de documento: Artigo Científico
• Fonte: AGRICULTURAL SYSTEMS; v. 131, p. 116-122, NOV 2014.
• Citações Web of Science: 5

Resumo

Copaiba oleoresin is a medicinal product obtained from several species of Copaifera trees (Copaifera spp.), and it is used for its healing and anti-inflammatory properties. Oleoresin is extracted via holes drilled into the trunks of copaiba trees, which are then plugged and periodically harvested in repeated cycles. To date, the optimal harvesting cycle and the factors that influence oleoresin production are unknown. Therefore, the main objective of this study was to analyze various harvesting schedules to determine the optimal cycle in an attempt to obtain maximum oleoresin production or the maximum net present value associated with production. The study took place in Paragominas, Para (Brazil), and based on the resulting data, a set of alternatives for 1- to 5-year cycles with a planning horizon of 10 years was created. The data were analyzed within two different contexts: a deterministic one and another scenario that assumed that certain variables exhibit non-deterministic behavior for which a Monte Carlo simulation was used. Based on the available data, three scenarios were proposed that differed according to the hypotheses employed to estimate production for years when no measurements are available. The results show that, regardless of the various contexts and scenarios, the optimal harvesting cycle for copaiba oleoresin is three years, which is consistent with some previously published recommendations. Finally, the opportunity cost of not choosing the optimal cycle does not seem to be very high. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 10/16525-7 - Potencial produtivo e de manejo de dois produtos não-madeireiros chaves no contexto da região amazônica, o cipó-titica (Heteropsis sp.) e a copaíba (Copaifera sp.)
• Beneficiário: Edson José Vidal da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular