A tropical rainforest clearing experiment by biomass burning in the Manaus region

Carvalho, João Andrade de; Santos, Jesus Marden dos; Leitão, Maria

doi:10.1016/1352-2310(95)00094-f

Cited by 60 publications

(46 citation statements)

References 8 publications

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“…All trees !5 cm trunk base diameter (D b , de®ned as measured at 1.3 m or above the buttresses) were harvested from 0.2 ha subplot, randomly selected from a 1.0 ha plot located on a plateau (Oxisol) that was cleared for a biomass burning study (Carvalho et al, 1995). Bole and crown masses were tabulated separately, along with D b .…”

Section: Stand Increment and Allometric Modelsmentioning

confidence: 99%

Tree damage, allometric relationships, and above-ground net primary production in central Amazon forest

Chambers¹,

Santos

Ribeiro

et al. 2001

Forest Ecology and Management

392

349

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Section: Stand Increment and Allometric Modelsmentioning

confidence: 99%

Tree damage, allometric relationships, and above-ground net primary production in central Amazon forest

Chambers¹,

Santos

Ribeiro

et al. 2001

Forest Ecology and Management

392

349

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“…Para a preparação da área que hoje é uma capoeira, um quadrado de um hectare de floresta primária foi derrubado em julho de 1991 e queimado em novembro do mesmo ano. Essa área foi originalmente desenhada para os estudos sobre eficiência de combustão e emissão de gás carbônico da floresta amazônica (Carvalho Jr et al, 1995).…”

Section: Caracterização Dos Dadosunclassified

Análise da estrutura e do estoque de fitomassa de uma floresta secundária da região de Manaus AM, dez anos após corte raso seguido de fogo

et al. 2007

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RESUMONa Amazônia, o fogo é ainda o principal trato cultural utilizado no preparo de solo para agricultura e pecuária, tanto pelos pequenos como pelos grandes fazendeiros. Combinando à baixa fertilidade do solo e ao baixo preço da terra, assim que as fontes naturais de nutrientes são exauridas, as áreas são abandonadas e novas florestas primárias são derrubadas e queimadas. Por conta disso, grandes extensões de área da Amazônia são cobertas por florestas secundárias originadas de áreas abandonadas pela agricultura ou pastagem. Este estudo foi conduzido em uma área experimental usada em uma pesquisa sobre eficiência de combustão e emissão de gás carbônico da floresta amazônica, localizada aproximadamente 50 km ao norte de Manaus. A vegetação da área experimental foi derrubada e queimada em 1991, simulando as condições em que o pequeno agricultor prepara o solo para plantios de subsistência. Dez anos após a queimada, a floresta secundária ainda é bastante diferente da floresta original. As espécies vegetais dominantes são, principalmente, das famílias botânicas Annonaceae, Arecaceae, Burseraceae, Cecropiaceae, Euphorbiaceae, Fabaceae, Lecythidaceae, Melastomataceae, Mimosaceae, Sapindaceae e Sterculiaceae. O estoque de biomassa recuperado, dez anos após a formação da capoeira estudada, é de aproximadamente 16%, ou seja, a capoeira apresenta um estoque médio de 56,2 t.ha -1 ± 12 (IC 95%), enquanto que o estoque da floresta primária é de 339,7 t.ha -1 ± 66,7 (IC 95 %). PALAVRAS-CHAVE

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“…CC has been measured in the field for various biome and fuel types (e.g., Carvalho et al, 1995;Shea et al, 1996;Hoffa et al, 1999), and varies over the course of the fire season with more complete combustion at the end when fuels have had more time to dry out, as shown by Hoffa et al (1999) for savanna ecosystems. In general, fine and dry fuels burn more completely than coarse and wet fuels, although a paucity of data makes it challenging to quantitatively link CC with climate in global models.…”

Section: G R Van Der Werf Et Al: Interannual Variability In Globalmentioning

confidence: 99%

Interannual variability in global biomass burning emissions from 1997 to 2004

et al. 2006

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Abstract. Biomass burning represents an important source of atmospheric aerosols and greenhouse gases, yet little is known about its interannual variability or the underlying mechanisms regulating this variability at continental to global scales. Here we investigated fire emissions during the 8 year period from 1997 to 2004 using satellite data and the CASA biogeochemical model. Burned area from 2001-2004 was derived using newly available active fire and 500 m. burned area datasets from MODIS following the approach described by Giglio et al. (2006). ATSR and VIRS satellite data were used to extend the burned area time series back in time through 1997. In our analysis we estimated fuel loads, including organic soil layer and peatland fuels, and the net flux from terrestrial ecosystems as the balance between net primary production (NPP), heterotrophic respiration (R h ), and biomass burning, using time varying inputs of precipitation (PPT), temperature, solar radiation, and satellite-derived fractional absorbed photosynthetically active radiation (fA-PAR). For the 1997-2004 period, we found that on average approximately 58 Pg C year −1 was fixed by plants as NPP, and approximately 95% of this was returned back to the atmosphere via R h . Another 4%, or 2.5 Pg C year −1 was emitted by biomass burning; the remainder consisted of losses from fuel wood collection and subsequent burning. At a global scale, burned area and total fire emissions were largely decoupled from year to year. Total carbon emissions tracked burning in forested areas (including deforestation fires in the tropics), whereas burned area was largely controlled by savanna fires that responded to different environmental and human factors. Biomass burning emissions showed large interannual variability with a range of more than 1 Pg C year −1 , Correspondence to: G. R. van der Werf (guido.van.der.werf@falw.vu.nl) with a maximum in 1998 (3.2 Pg C year −1 ) and a minimum in 2000 (2.0 Pg C year −1 ).

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A tropical rainforest clearing experiment by biomass burning in the Manaus region

Cited by 60 publications

References 8 publications

Tree damage, allometric relationships, and above-ground net primary production in central Amazon forest

Tree damage, allometric relationships, and above-ground net primary production in central Amazon forest

Análise da estrutura e do estoque de fitomassa de uma floresta secundária da região de Manaus AM, dez anos após corte raso seguido de fogo

Interannual variability in global biomass burning emissions from 1997 to 2004

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