- LASTROP
- Projects
- Modelos de silvicultura de espécies nativas para a viabilização econômica da restauração florestal no...
- Localization
- Location: Aracruz - ES, Brazil. An area previously used for eucalyptus plantation owned by Fibria.
- Start
- 2011
- Team
- Prof. Pedro Brancalion (LASTROP), Prof. Ricardo Ribeiro Rodrigues (LERF/ESALQ), Dr. André Nave (BioFlora) e Eng. Ftal. Roberto Mediato (Fibria)
- Support
- Fibria, CNPq, FAPESP, Pacto pela Restauração da Mata Atlântica e Instituto Internacional para a Sustentabilidade
Objective: Develop and test native species silvicultural models, focusing on using eucalyptus as a “commercial pioneer” species and several native species for intermediate and final hardwoods. Such models aim at funding forest restoration in northern Espírito Santo State. The objective of this work is to evaluate if the cost reduction by planting eucalyptus (as a consequence of cheaper seedlings and faster soil shading) and the yield from harvesting its wood compensate the costs of restoration plantings in Legal Reserves using areas of low agricultural potential. Hardwoods may be harvested in the future, in simple or double rows, considering the silviculture point of view. Complementarily, we will evaluate if eucalyptus planting is more viable, for the silvicultural perspective (eucalyptus harvesting and growth) and ecological perspective (growth of planted native seedlings, natural regeneration and invasive grass cover), in simple and double rows.
Research description: we tested eight models: single lanes of native species for initial, intermediate and final woods (1); initial wood species replaced by eucalyptus as a “commercial pioneer” for cellulose production (2); or timber production (3); double lanes of native species of intermediate and final wood + initial wood species replaced by eucalyptus as a “commercial pioneer” for cellulose production (4); or timber production (5); conventional forest restoration planting (distributed in filling and diversity groups, as an “ecological control” to compare the impacts of exploring commercial species for restoration) (6); and monospecific eucalyptus planting for cellulose (7); and timber (8).
The experiment was installed in a randomized block design, with eight treatments and six repetitions (48 experimental plots and six blocks). Each experimental plot contains eight planting rows of 10 individuals each (80 individuals per plot), surrounded by planting rows of the next wood group. Planting spacing was 3 x 3 m. Silviculture treatments (fertilization, leaf-cutting ants and grass competition control) were carried out according to recommendations for eucalyptus (link pdf).
Start date: 2011.
Ongoing evaluations: Forest inventory; diameter growth; costs; number of stems; canopy closure; invasive grass cover; water competition; light competition.
Research team: Prof. Pedro Henrique Santin Brancalion (LASTROP/ESALQ/USP), Prof. Ricardo Ribeiro Rodrigues (LERF/ESALQ), Dr. André Gustavo Nave (Bioflora), Nino Amazonas (LASTROP/ESALQ/USP) and Forest Eng. Roberto Mediato (Fibria).
Financial Support: Fibria, National Council for Scientific and Technological Development (CNPq), São Paulo State Research Foundation (FAPESP), Suzano Paper and Cellulose, Pact for the Restoration of the Atlantic Forest and International Institute for Sustainability.
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