Can timber provision from Amazonian production forests be sustainable?

Autor(es):Mostrar menos -

Piponiot, Camille ^{[1, 2]} ; Rodig, Edna ^[3] ; Putz, Francis E. ^[4] ; Rutishauser, Ervan ^{[5, 6]} ; Sist, Plinio ^[2] ; Ascarrunz, Nataly ^[7] ; Blanc, Lilian ^[2] ; Derroire, Geraldine ^[1] ; Descroix, Laurent ^[8] ; Guedes, Marcelino Carneiro ^[9] ; Coronado, Euridice Honorio ^[10] ; Huth, Andreas ^[3] ; Kanashiro, Milton ^[11] ; Licona, Juan Carlos ^[7] ; Mazzei, Lucas ^[11] ; Neves d'Oliveira, Marcus Vinicio ^[12] ; Pena-Claros, Marielos ^[13] ; Rodney, Ken ^[14] ; Shenkin, Alexander ^[15] ; de Souza, Cintia Rodrigues ^[16] ; Vidal, Edson ^[17] ; West, Thales A. P. ^[4] ; Worter, Verginia ^[18] ; Herault, Bruno ^{[2, 19]}

Afiliação do(s) autor(es):Mostrar menos -

^[1] Univ Antilles, Univ Guyane, UMR EcoFoG, Agroparistech, CNRS, Inra, Cirad, Kourou, French Guiana - France

^[2] Univ Montpellier, Cirad, UR Forests & Soc, Montpellier - France

^[3] UFZ Helmholtz Ctr Environm Res, Permoserstr 15, D-04318 Leipzig - Germany

^[4] Univ Florida, Dept Biol, Gainesville, FL 32611 - USA

^[5] CarboForExpert, Hermance - Switzerland

^[6] Smithsonian Trop Res Inst, Ancon 03092 - Panama

^[7] Inst Boliviano Invest Forestal, Santa Cruz - Bolivia

^[8] ONF Guyane, Reserve Montabo, F-97307 Cayenne, French Guiana - France

^[9] Embrapa Amapa, Macapa - Brazil

^[10] Inst Invest Amazonia Peruana, Iquitos - Peru

^[11] Embrapa Amazonia Oriental, Belem, Para - Brazil

^[12] EMBRAPA Acre, Rio Branco - Brazil

^[13] Wageningen Univ, Forest Ecol & Forest Management Grp, Wageningen - Netherlands

^[14] Iwokrama, Georgetown - Guyana

^[15] Univ Oxford, Environm Change Inst, Oxford - England

^[16] Embrapa Amazonia Ocident, Manaus, Amazonas - Brazil

^[17] Univ Sao Paulo, Dept Ciencias Florestais, Piracicaba - Brazil

^[18] CELOS, Forest Management Dept, Paramaribo - Surinam

^[19] INP HB Inst Natl Polytech Felix Houphouet Boigny, Yamoussoukro - Cote Ivoire

• Tipo de documento: Artigo Científico
• Fonte: ENVIRONMENTAL RESEARCH LETTERS; v. 14, n. 6 JUN 2019.
• Citações Web of Science: 4

Resumo

Around 30 Mm(3) of sawlogs are extracted annually by selective logging of natural production forests in Amazonia, Earth's most extensive tropical forest. Decisions concerning the management of these production forests will be of major importance for Amazonian forests' fate. To date, no regional assessment of selective logging sustainability supports decision-making. Based on data from 3500 ha of forest inventory plots, our modelling results show that the average periodic harvests of 20 m(3) ha(-1) will not recover by the end of a standard 30 year cutting cycle. Timber recovery within a cutting cycle is enhanced by commercial acceptance of more species and with the adoption of longer cutting cycles and lower logging intensities. Recovery rates are faster in Western Amazonia than on the Guiana Shield. Our simulations suggest that regardless of cutting cycle duration and logging intensities, selectively logged forests are unlikely to meet timber demands over the long term as timber stocks are predicted to steadily decline. There is thus an urgent need to develop an integrated forest resource management policy that combines active management of production forests with the restoration of degraded and secondary forests for timber production. Without better management, reduced timber harvests and continued timber production declines are unavoidable. (AU)

• Processo FAPESP: 13/50718-5 - Restauração ecológica de florestas ciliares, de florestas nativas de produção econômica e de fragmentos florestais degradados (em APP e RL), com base na ecologia de restauração de ecossistemas de referência, visando testar cientificamente os preceitos do Novo Código Florestal Brasileiro
• Beneficiário: Ricardo Ribeiro Rodrigues
• Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 13/16262-4 - Monitoramento de longo prazo da dinâmica de uma floresta explorada de forma convencional e com técnicas de manejo florestal na Amazônia Oriental e suas relações com mudanças climáticas nas florestas manejadas para a produção de madeira
• Beneficiário: Edson José Vidal da Silva
• Linha de fomento: Auxílio à Pesquisa - Regular