Assessment of tropical forest degradation by selective logging and fire using Landsat imagery

Matricardi, Eraldo Aparecido Trondoli; Skole, David L.; Pedlowski, Marcos Antônio; Chomentowski, Walter; Fernandes, Luís Filipe Sanches

doi:10.1016/j.rse.2010.01.001

Cited by 157 publications

(143 citation statements)

References 52 publications

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“…We applied three vegetation and near-infrared indices to each image: the Normalized Difference Vegetation Index (NDVI); the Modified Soil Adjusted Vegetation Index (MSAVI) (Huete, 1988;Qi et al, 1994); and the Modified Soil Adjusted Vegetation Index-aerosol free (MSAVI af ) (Matricardi et al, 2010) (Details in Appendix).…”

Section: Image Processingmentioning

confidence: 99%

“…Multi-year assessments using a time series of satellite imagery have been suggested as an adequate means of tracking complex land-cover dynamics that include clearing and regrowth. Such assessments increase the possibility of detecting small-scale intervention (Stone & Lefebvre, 1998;Asner et al, 2005;Broadbent et al, 2006;Matricardi et al, 2007), and by using sub-pixel information (Souza et al, 2003;Brandt & Townsend, 2006;Matricardi et al, 2010). Compelling research on selective logging has made use of methodologies that allow the extent of these activities to be quantified (Asner et al, 2004b;Souza et al, 2005a;Asner et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Traditional shifting agriculture: tracking forest carbon stock and biodiversity through time in western Panama

Pelletier

Codjia

Potvin

2012

Global Change Biology

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Reducing Emissions from Deforestation and forest Degradation (REDD+) requires developing countries to quantify green-house gas emissions and removals from forests in a manner that is robust, transparent, and as accurate as possible. While shifting cultivation is a dominant practice in several developing countries, there is still very limited information available on how to monitor this land-use practice for REDD+ as little is known about the areas of shifting cultivation or the net carbon balance. In the present work, we propose and test a methodology to monitor the effect of the shifting cultivation on above-ground carbon stocks. We combine multi-year remote sensing information, taken from a 12-year period, with an in-depth community forest carbon stock inventory in Palo Seco Forest Reserve, western Panama. With remote sensing, we were able to separate four forest classes expressing different forest-use intensity and timesince-intervention which demonstrate expected trends in above-ground carbon stocks. The addition of different interventions observed over time is shown to be a good predictor, with remote sensing variables explaining 64.2% of the variation in forest carbon stocks in cultivated landscapes. Multi-temporal and multi-spectral medium resolution satellite imagery is shown to be adequate for tracking land-use dynamics of the agriculture-fallow cycle. The results also indicate that, over time, shifting cultivation has a transitory effect on forest carbon stocks in the study area. This is due to the rapid recovery of forest carbon stocks, which results in limited net emissions. Finally, community participation yielded important additional benefits to measuring

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Section: Image Processingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Traditional shifting agriculture: tracking forest carbon stock and biodiversity through time in western Panama

Pelletier

Codjia

Potvin

2012

Global Change Biology

View full text Add to dashboard Cite

show abstract

“…In the Amazonian region forest degradation is mainly associated with selective logging activities and forest fires (Asner et al 2005;Eva et al 2012;Souza et al 2013). Initial disturbance makes forests vulnerable to further degradation potentially ending in deforestation (Asner et al 2006;Matricardi et al 2010;Numata et al 2010). While the level of selective logging activities in the Amazon has been widely studied and well documented (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Asner et al 2005;Hosonuma et al 2012;Souza et al 2013), the extent of fire-induced forest degradation is less studied and the analyses have been typically limited either by small study areas or coarse spatial resolution (e.g. Matricardi et al 2010;Morton et al 2013).…”

Section: Introductionmentioning

confidence: 99%

On the extent of fire-induced forest degradation in Mato Grosso, Brazilian Amazon, in 2000, 2005 and 2010

Miettinen

Shimabukuro

Beuchle

et al. 2016

Int. J. Wildland Fire

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Abstract. In this paper we analyse the extent of fire-induced forest degradation in Mato Grosso State, Brazil. We utilise a sample based approach used in a previous pan-tropical deforestation survey to derive information on land cover and burned areas in the two major biomes of Mato Grosso: Amazon and Cerrado. Land cover and burned area are mapped for three years (2000-2005-2010) over 77 sample sites (10 000 ha each) distributed systematically throughout the state which covers 90.337 Mha. Our results indicate continuing forest degradation by fires in the state and potentially increasing fire susceptibility of the Amazon forests, regardless of the decrease in deforestation. 2010 witnessed the most extensive fireinduced forest degradation (,300 000 ha) in the forests of the Amazon biome among the study years, regardless of the fact that the fire season was less severe than in 2005. Deforestation in the Amazon biome in Mato Grosso dropped from 590 000 ha year À1 in the 2000-2005 period to 190 000 ha year À1 in the second half of the decade. The findings of this study advocate the inclusion of forest fire effects into carbon accounting initiatives.

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“…Estas áreas de florestas impactadas pelo fogo e por atividades madeireiras podem alcançar dimensões semelhantes às áreas desmatadas na região Amazônica (Nepstad et al, 1999;Asner et al, 2005;Matricardi et al, 2010Matricardi et al, , 2013.…”

Section: Introductionunclassified

Avaliação do desmatamento no estado de Rondônia entre 2001 e 2011

et al. 2014

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RESUMONo presente estudo, foi avaliada a acurácia dos mapeamentos do desmatamento conduzidos pelo Programa de Monitoramento do Desflorestamento na Amazônia (PRODES) do Instituto Nacional de Pesquisas Espaciais (INPE) e pela Secretaria de Estado do Desenvolvimento Ambiental (SEDAM), para o Estado de Rondônia, no período entre 2001 a 2011, utilizando imagens Landsat 5 TM. Com base nos resultados deste estudo, os mapeamentos conduzidos pela SEDAM e pelo PRODES-INPE apresentaram coeficientes Kappa similares, estimados em 0,89 e 0,87, respectivamente. Os dados do desmatamento dos sistemas PRODES e SEDAM revelaram um decréscimo nas taxas de desmatamento em todo o Estado de Rondônia no período de análise, embora os desmatamentos ilegais dentro de áreas protegidas tenham aumentado cerca de 400% entre 2002 e 2011. Assumindo-se esta tendência de desmatamento da última década, é possível afirmar que as terras indígenas e unidades de conservação (UC) em Rondônia serão os principais alvos de desmatamento e destruição nos próximos anos.Palavras-chave: sensoriamento remoto, mudanças no uso e na cobertura da terra, Floresta Amazônica. Deforestation Assessment in the State of Rondônia between 2001 and 2011 ABSTRACTThe goal of this study was to assess the accuracy of deforestation maps produced by the National Institute for Spatial Research (INPE) and the Rondônia State Secretariat of Environmental Development (SEDAM) for the state of Rondônia between 2001 and 2011. Our results show that the deforestation mappings conducted by SEDAM and PRODES-INPE present similar Kappa coefficients, which were estimated at 0.89 and 0.87, respectively. The deforestation datasets prepared by PRODES and SEDAM show a decrease in deforestation rates in Rondônia state in the study period. However, there was a significant increase in illegal deforestation (approximately 400% within the protected areas) in this period. Based on the deforestation trend observed in the past decade, we can affirm that forests inside protected areas are the main targets for deforestation in Rondônia state.

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Assessment of tropical forest degradation by selective logging and fire using Landsat imagery

Cited by 157 publications

References 52 publications

Traditional shifting agriculture: tracking forest carbon stock and biodiversity through time in western Panama

Traditional shifting agriculture: tracking forest carbon stock and biodiversity through time in western Panama

On the extent of fire-induced forest degradation in Mato Grosso, Brazilian Amazon, in 2000, 2005 and 2010

Avaliação do desmatamento no estado de Rondônia entre 2001 e 2011

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