State of fish stocks in the Northeast Atlantic, the North Sea and the Baltic Sea
Carbon stocks and changes across a network of Atlantic Forest plots
Transcript of Carbon stocks and changes across a network of Atlantic Forest plots
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Carbon stocks and changes across a network of
Atlantic Forest plots
Simone Vieira
(NEPAM/UNICAMP, Brazil)
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Forest cover South America
• the greatest concentration of
tropical forests in the world
• Amazonian region
• Extra-Amazonian areas in
the Pacific coast of Colombia
and Ecuador and the
Atlantic coast and Iguaçu
and Paraná River valleys
FAO
(2000)
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Sparovek et al. 2010
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The Atlantic Forest Cover before 1850 - ~1.5 million km2
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The Atlantic Forest Cover before 1850 - ~1.5 million km2
“...arvoredo que é tanto e tamanho e
tão basto e de tanta qualidade de
folhagem que não se pode calcular.”-
Pero Vaz de Caminha (1500)
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Actually is restricted to no mores than12% of the original area
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Photosynthesis
Respiration
CO2
Carbon
dioxide
H2O
Water
Energy
(sunlight)
O2
Oxygen
gas
CH2O
Glucose
(SUGAR)
+ + +
If Photosynthesis exceeds Respiration,
Carbon dioxide will decrease and carbon is stored in
the ecosystem
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Carbon fixed by photosynthesis allocated to growth
can store C for varying periods of time
Photosynthesis
leaf
stem
root
Allocation
storage
Microbial
communityStabilized SOM
Soil respiration
Litter and SOM
decomposition
Ecosystem respiration
Root
Respiration
Fire
Loss by leaching, erosion
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Controls over ecosystem processes: state factors,
interactive controls, and feedbacks
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Research questions –
What is the capacity for these forests to store C?
Where could it be stored and for how long?
What is their potential to respond to global and local
climate change?
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Biota Project
monitor forest structure and dynamics
multi-temporal assessment of the floristic
composition and species richness
Ecosystem studies on N and C cycles
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ATLANTIC FOREST
Tropical Moist Forest
Climate: tropical (3 months <
100mm)
Temperature: 22-24ºC
Precipitation: 2500 mm
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0 m
1000 m
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Restinga
(seasonally flooded)
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Lowland tropical moist forest
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Submontane tropical moist forest
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Montane tropical moist forest
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Carbon stocks measurements
Tree – DBH, Height, Species (above and belowground biomass)
Coarse woody debris (CWD)
Litterlayer
Soil
Pantropical allometric equation to estimate biomass (Chave et al. 2005)
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350
300
250
200
150
100
50
0
50
100
150
200
Sea level
forest*
100 m 400 m 1,000 m Lowland
flooded
Lowland
Manaus
Lowland
Santarém
Atlantic Forest Amazon forest
To
tal a
bo
ve
an
d b
elo
w g
rou
nd
ca
rbo
n s
tora
ge
(Mg
C
ha
-1)
Site
Live Biomass Fallen and Standing CWD Litter layer Soil (0-100 cm) Root
Carbon stock above and belowground in a gradient of elevation in
Atlantic Fores and in Amazon forest
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Reservatórios de Carbono na Amazonia Central
A maior parte do carbono esta estocado nos troncos grossos e no solo
Estoque de Carbono
38%
28%
12%
10%
6%4%
1% 1%
Árvores
Solo
Galhos
Raizes Finas
Raizes grossas
Liteira Grossa
Folhas
Liteira Fina
Chambers et al. 2004
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28%
58%
1%
1%
6%4%
1%1%
Árvores
Solo
Galhos
Raizes Finas
Raizes grossas
Liteira Grossa
Folhas
Liteira Fina
Reservatórios de Carbono na Mata Atlântica Litorânea
A maior parte do carbono esta estocado nos troncos grossos e no solo
Estoque de Carbono
Projeto BIOTA - Ubatuba
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CE
NÁ
RIO
S C
LIM
ÁT
ICO
S P
AR
A O
BR
AS
IL
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Controls over ecosystem processes: state factors,
interactive controls, and feedbacks
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Carbon fixed by photosynthesis allocated to growth
can store C for varying periods of time
Photosynthesis
leaf
stem
root
Allocation
storage
Microbial
communityStabilized SOM
Soil respiration
Litter and SOM
decomposition
Ecosystem respiration
Root
Respiration
Fire
Loss by leaching, erosion
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Soil radiocarbon age
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y = 44,158ln(x) - 13,9
R² = 0,9985
50
100
150
200
250
300
350
0 200 400 600 800 1000 1200
Soil
C S
tock
(M
gC
ha-1
)
Elevation (a.s.l.m)
Soil C stocks and changes across a network of Atlantic Forest plots
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y = -11,808x2 + 393,33x - 2966,7
R² = 0,9996
50
100
150
200
250
300
350
14 15 16 17 18 19 20 21 22
Soil Temperature ( oC)
y = 44,158ln(x) - 13,9
R² = 0,9985
50
100
150
200
250
300
350
0 200 400 600 800 1000 1200
Soil
C S
tock
(M
gC
ha-1
)
Elevation (a.s.l.m)
Soil C stocks and changes across a network of Atlantic Forest plots
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Conclusion
•The Tropical Atlantic Forest can be considered an important
reservoir of carbon, which can store between 189-466 MgC
ha-1
•The global model predict there will have no change on total
precipitaion
•Temperature may increase (~4oC –worst scenario)
•The increase of the temperature will direct affect total
carbon stock in Atlantic forest, especially soil carbon stock
•By increasing temperature, carbon in “fast” and “slow”
pools will also be affected
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Thank you!
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Alves et al. 2010 Forest Ecology and Management “Forest structure and live aboveground biomass
variation along an elevational gradient of tropical Atlantic moist forest (Brazil)”