Caracterização da extração seletiva de madeira na reserva de desenvolvimento sustentável do juma e sua zona de amortecimento, sudeste do amazonas
Demand for tropical wood in the Amazon adds urgency to the conservation of this ecosystem, especially by preventing practices that are at odds with environmental regulations. Logging in the state of Amazonas is being encouraged by the state government as development policy for the local economy. How...
| Autor principal: | Britto, Aline dos Santos |
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| Grau: | Dissertação |
| Idioma: | por |
| Publicado em: |
Instituto Nacional de Pesquisas da Amazônia - INPA
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/12926 http://lattes.cnpq.br/6871663230162706 |
| Resumo: |
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Demand for tropical wood in the Amazon adds urgency to the conservation of this
ecosystem, especially by preventing practices that are at odds with environmental
regulations. Logging in the state of Amazonas is being encouraged by the state
government as development policy for the local economy. However, several factors
contribute to an unpromising scenario for “sustainable” forest management. Although
less timber is harvested in the state of Amazonas than in other states in the Brazilian
Amazon, there is still a large amount of wood of illegal origin in the state. Protected
areas are easy targets because of the absence of robust public policies for
environmental management and because of the logistical difficulties of supervising
such a large territory. This study sought to characterize the behavior and the
dynamics of licensed and unlicensed practices for timber production in the Juma
Sustainable Development Reserve (Juma Reserve) and in its buffer zone.
Environmental-licensing information and satellite images (OLI/Landsat-8 and
RapidEye) were used to identify and map areas with signs of selective logging. An
average of 413.327m 3 of logs is harvested per year from forest management plans in
Amazonas. The southern Amazonas region accounts for 59% of the industries
consuming forest raw materials in the state and supplies much of the legal
production. The Juma Reserve is under strong pressure from logging in the
surrounding area. Using visual-interpretation techniques with RapidEye images, we
identified 437.0 hectares with signs of logging in the Juma Reserve for the years
2011 and 2013 and 1740.6 hectares of illegal logging in the buffer zone for the same
period. We were not successful in using the OLI/Landsat-8 images for the detection
of logging; however, based on interpretation of images using a linear spectral mixing
model, we were able to use the soil-derived fraction to map endogenous roads in the
study area. The use of remote sensing can be applied in monitoring logging in the
state of Amazonas, Brazil. |