Sequential Management of Commercial Rosewood (Aniba rosaeodora Ducke) Plantations in Central Amazonia: Seeking Sustainable Models for Essential Oil Production

Autor(es)

Krainovic, Pedro Medrado ^[1] ; Alves de Almeida, Danilo Roberti ^[2] ; Desconci, Diego ^[1] ; da Veiga-Junior, Valdir Florencio ^[3] ; Barbosa Sampaio, Paulo de Tarso ^[1]

Afiliação do(s) autor(es)

^[1] Natl Inst Amazonian Res INPA, BR-69067375 Manaus, Amazonas - Brazil

^[2] Univ Sao Paulo, Dept Forest Sci, BR-13418000 Piracicaba - Brazil

^[3] Fed Univ Amazonas UFAM, BR-69067005 Manaus, Amazonas - Brazil

• Tipo de documento: Artigo Científico
• Fonte: FORESTS; v. 8, n. 12 DEC 2017.
• Citações Web of Science: 5

Resumo

Rosewood (Aniba rosaeodora Ducke) is an endangered tree that produces essential oil of high commercial value. However, technical-scientific knowledge about cultivation is scarce and studies are needed to examine the management viability. The current study evaluated rosewood aboveground biomass management, measuring the export of nutrients resulting from harvesting and testing sustainable management models. The crown of 36 rosewood trees were pruned and 108 trees cut at 50 cm above the soil in two regions in Central Amazonia. Post-harvest performance of sprouting shoots was evaluated and after, sprouting shoots were pruned so that the development of two, three and all shoots was permitted. Nutrient stock estimation was calculated as the product of mass and nutrient concentration, which allowed nutritional replacement to be estimated. The pruning facilitates regrowth by 40.11% of the initial mass while by cut regrow 1.45%. Chemical attributes of regrowth biomass differed significantly prior to management and regrowth had a significant correlation with the reserves in root tissues and with the pre -management status of the individual tree. Driving sprouts resulted in significantly larger growth increments and may provide a form of management that can viably be adopted. Biomass sequential management resulted in high nutrient exports and the amount of fertilizer needed for replenishment depended on the intensity and frequency of cropping. Compared with the cut of the tree, pruning the canopy reduces fertilizers that are required to replenish amount by 44%, decreasing to 26.37% in the second rotation. The generated knowledge contributes to this silvicultural practice as it becomes ecologically and economically viable. (AU)

• Processo FAPESP: 16/05219-9 - Monitoramento de programas de restauração de paisagens florestais por meio de sensoriamento remoto LiDAR.
• Beneficiário: Danilo Roberti Alves de Almeida
• Modalidade de apoio: Bolsas no Brasil - Doutorado