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Estimation of Biomass and Carbon Stocks: the Case of the Atlantic Forest Simone Vieira Cena/USP.

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Apresentação em tema: "Estimation of Biomass and Carbon Stocks: the Case of the Atlantic Forest Simone Vieira Cena/USP."— Transcrição da apresentação:

1 Estimation of Biomass and Carbon Stocks: the Case of the Atlantic Forest Simone Vieira Cena/USP

2 Estimation of Biomass and Carbon Stocks: the Case of The Atlantic Forest Simone A. Vieira, Luciana F. Alves, Marcos Aidar, Luciana Spinelli Araújo, Tim Baker, João Luís F. Batista, Mariana Cruz Campos, Plinio B. Camargo, Jerome Chave, Welington B. Delitti, Niro Higuchi, Euridice Honorio, Carlos A. Joly, Michael Keller, Luiz A. Martinelli, Eduardo Arcoverde de Mattos, Thiago Metzker, Oliver Phillips, Flavio A. M. Santos, Mônica Takako Shimabukuro, Marcos Silveira, Susan E. Trumbore

3 Tropical forests are obviously a source of carbon dioxide to the atmosphere through land use change

4 But what are the dynamics of C in intact forests and what is their potential to respond to global environmental change such as - increased CO 2 - climate change - anthropogenic pressure ? and why Atlantic Forest???????

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6 The Atlantic Forest 500 years ago (1.36 million km 2 )

7 The Atlantic Forest today (92 thousand km 2 )

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9 How much C was emitted to the atmosphere due to the land use change in Atlantic forest?

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11 0 m 1,000 m How does the structure and the function of the forest change along this altitudinal gradient?

12 Our questions – What is the capacity for these forests to store C? Where could it be stored and for how long? Our approach – First - Look at components of C stocks: Above and below ground and the environmental variables that control them. Use radiocarbon to determine the residence time of carbon in trees and soils

13 10m 100m 300m 1000m Floristic composition, structure and forest dynamics Coastal flooded forest (restinga) Lowland dense forest Submontane dense forest Montane dense forest

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16 X Y

17 Sede Núcleo Santa Virgínia Fazenda Capricórnio Casa da Farinha

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21 Restinga

22 C B D E

23 G H I J F

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26 Stem information -Number -Location (X and Y) -Identification(Floristic) -Measurement -DBH (1,30m) -HDBH -Total Height -Trunk quality -Illumination of canopy -Vertical trunk position

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28 trees, palms and tree ferns Mininum size: 4.8cm DBH

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32 Propagation of error Data quality Allometric model quality Size of the sampled area How well the plots represent the forest DBH of one tree AGB of one tree AGB of one plot AGB of the forest measurement Allometric model Sum of trees Mean of plots Chave et al. (2004) Propagation of error in estimating the biomass of Tropical Forest

33 Selection and validation of models Diameter (DBH, cm) Height (m) Wood density – specific gravity of wood (g/cm 3, 15% humidity) Fonte:

34 Atlantic Forest Above ground biomass Tiepolo et al. (2002) – Guaraqueçaba (PR) Burguer (2005) – Santos (SP) Rolim et al. (2005) – Linhares (ES)

35 Allometric model – trees Dry biomass above ground (kg ha -1 )

36 Allometric model – other life forms

37 Amazon forest Atlantic Forest Tree total height x DBH in Amazon forest (western Amazon) and Atlantic forest (Picinguaba).

38 Scaranello (2007)

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40 Submontane dense forest Above ground biomass (Mg/ha)

41 ca.22,000 tree stems > 4.8 cm DBH Dens = ind ha -1 ( CI 95%) BA = m 2 ha -1 > 10 cm DBH - change between altitudinal density 25% Basal area– 69% biomass – 30% Forest Structure

42 Altitude

43 Total Above Ground Biomass Altitude 74% 47% 71% 69% > 30 cm

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45 Forest Structure implications to carbon stocks

46 Disturbance Forest structure and biomass Carbon stock Residence time and forest dynamic Edaphic factors

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48 Biomass distribution in DBH size class Dry season

49 Altitudinal Position Biomass distribution in DBH size class

50 Spatial patterns in carbon storage above and belowground in Brazilian Tropical Forest: Amazon and Atlantic Forest

51 Financiamento Este trabalho foi financiado pela Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) no âmbito do Projeto Temático Gradiente Funcional (Processo 03/ ), que faz parte do Programa BIOTA/FAPESP - O Instituto Virtual da Biodiversidade (www.biota.org.br). Autorização COTEC/IF /2005 e autorização IBAMA/CGEN 093/2005.www.biota.org.br funcional/index.html


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