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Peatlands, carbon and climate change

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Peatlands, carbon and climate change
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UN-FCCC Bonn meeting June 2009 Peatlands, carbon and climate change Marcel.Silvius@wetlan ds.org
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Page 1: Peatlands, carbon and climate change

UN-FCCC Bonn meeting June 2009

Peatlands, carbon and climate [email protected]

Page 2: Peatlands, carbon and climate change

Countries with most peat

• World wide 400 million haWorld wide 400 million ha• 3% of global land area 3% of global land area • 40% of all wetlands40% of all wetlands• In all climate zonesIn all climate zones

Page 3: Peatlands, carbon and climate change

Peatlands occur everywhere … from the tundra …

Yakutia, Russian

Federation

Page 4: Peatlands, carbon and climate change

...to the tropics…

Berbak National Park, Indonesia

Page 5: Peatlands, carbon and climate change

… from the mountains …

Kyrgystan

Page 6: Peatlands, carbon and climate change

Over permafrost

NWT, Canada

Page 7: Peatlands, carbon and climate change

Under grasslands …

Sichuan, China

Page 8: Peatlands, carbon and climate change

… along the rivers …

KyrgystanRuaha River Tanzania

Page 9: Peatlands, carbon and climate change

Archangelsk, RF

… to the sea …

Page 10: Peatlands, carbon and climate change

…to the end of the Earth…

Tierra del Fuego Argentina

Page 11: Peatlands, carbon and climate change

But peatlands are overlooked…

• Unfamiliarity

• Large diversity Peatland habitat diversity climate conditions

• Spatial heterogeneity thickness, landuse

• Various greenhouse gases

• Variability of parameters over time Weather Water level Vegetation Land-use

Page 12: Peatlands, carbon and climate change

Mineral Soil

River River

< 1m> 3m

Tropical peat swamp forest

Organic carbon

Peat: Organic matter accumulated over thousands of years, storing

concentrated carbon in thick layers

The peat bog is rain water fed

Peat dome

What are peatlands?

Page 13: Peatlands, carbon and climate change

Peatlands are water

Flow Country, Scotland

Page 14: Peatlands, carbon and climate change

Peat, carbon and climate change• Globally peatlands store 550 Giga ton (Gt) Carbon • Equivalent to 30% of terrestrial carbon

– twice the carbon stored in forest biomass

– 75% of all carbon in the atmosphere

• Global emissions 2 - 3 Gt CO2 / yr

~ 30 - 40% of LULUCF

Peatlands store large amounts of carbon Peatland degradation leads to GHG emissions which contribute to global warming

Page 15: Peatlands, carbon and climate change

C-sink: ~ 250 Mt “CO2” a-1

C-source: ~ 10 Mt CH4 a-1 = ~ 250 Mt CO2-eq 100 y time horizon

In longer-term peatlands are climate cooling

Page 16: Peatlands, carbon and climate change

Kalimantan, Indonesia

Drainage: emissions of up to 100 t CO2-eq ha-1 y-1

…that continue for many decades

Page 17: Peatlands, carbon and climate change

Hotspots of CO2 emissions from drained peat

SE Asia: • 5-8% of global emissions• world’s main source area of

peat emissions

< 0.5% of land surface 9-15% of global emissions

~ half from Annex 1 countries

Page 18: Peatlands, carbon and climate change

SE Asian peatland emissions disproportionately high

6% of global peat area

50-70% of global peat emissions

< 0.1% of global land area

5-8% of global CO2 emissions

CO2 emissions from oxidation in drained peatlands

(fires excluded), by region(global total: 887 Mt/y; source: PEAT-CO2)

Indonesia (58%)Other SE Asia (13%)C. America (8%)N. America (5%)Africa (4%)S. Asia (4%)C. Europe (4%)W. Europe (3%)S. America (3%)E. Asia (3%)N.W. Europe (2%)C. Asia (1%)Russia (1%)Australia Pac.S. EuropeMiddle East

Peatland extent by region (global total: 381 Mha; source: PEAT CO2)

S.E. Asia (6% )C. America (1% )N. America (35% )Africa (1% )S. AsiaC. Europe (1% )W. Europe (1% )S. America (2% )E. Asia (2% )N.W. Europe (5% )C. Asia (1% )Russia (43% )Australia Pac.S. EuropeMiddle East

Indonesia

Malaysia

RussiaN America

SE Asia

Page 19: Peatlands, carbon and climate change

Peatland issues• Deforestation• Degradation

– Drainage– Fires

Page 20: Peatlands, carbon and climate change

Tropical peat forest deforestation

Peatland deforestation:

• since 2000: 1.5%/yr: twice the rate for non-peatlands

• currently 45% deforested

• 96% degraded

Peat forest conservation

• < 5% of total peatland area

Relative total vs PSF area decline Insular SE Asia

90.00

91.00

92.00

93.00

94.00

95.00

96.00

97.00

98.00

99.00

100.00

Year

Are

a re

mai

ning

sin

ce 1

999

Total forest decline

Peat forest decline

Preliminary results presented at UNFCCC CoP

Nairobi, 07-11-2006

(%)

Page 21: Peatlands, carbon and climate change

Logging and drainage

• Channels used to transport equipment and logs

• Result: drainage and oxidation of peat soil

• High emissions of CO2

• Increased fire risks

Page 22: Peatlands, carbon and climate change

Conversion SE Asian peat forest areas

A total of about 13 million ha of SE Asian peat swamps have been drained

for agriculture and plantations

Page 23: Peatlands, carbon and climate change

On the issue of continued emissions

Conversion of peatswamp rainforest

to oil palm plantation

carbon store (t C ha-1)

years after conversion

0

500

1000

1500

2000

2500

0 10 20 30 40 50

loss: > 430 tC/ha

loss: > 130 tC/ha

Page 24: Peatlands, carbon and climate change

Peat drainage increases the risk of fires

• Between 1997 and 2006 there were over 60,000 fires in peat swamp areas on Borneo in 3 out of 10 years (1997, 1998, 2002)

• Most affected were deforested and drained peatlands

Tentative estimate of CO2 emissions from fires in Indonesia

0

2000

4000

6000

8000

10000

1997 1998 1999 2000 2001 2002 2003 2004 2005 2006

C e

mis

sio

n f

rom

pe

at

fire

s

(CO

2, M

t/y

)

Minimum estimate(1.42 Gt/y average)

Maximum estimate(4.32 Gt/y average)

Adapted from data provided by Siegert and Page

Page 25: Peatlands, carbon and climate change

Rewetting

CO2 N2O CH4

Page 26: Peatlands, carbon and climate change

What if current ignorance continues

No incentive mechanism to address 2-3 GT CO2-eq emissions

No incentive to deal with almost half of LULUCF

Page 27: Peatlands, carbon and climate change

Peat in REDD• Include all 5 carbon pools (IPCC 2006)• Most promising mechanism for addressing emissions

from degraded peat swamp forests• Include emissions from deforested peatlands (i.e.

emissions resulting from past deforestation)• Similar mechanism needed for non-forest peatlands• Exclude drained plantations

Page 28: Peatlands, carbon and climate change

REDD for peat forests recommendations• Support developing countries to get

REDDI– Inventories and assessments– MRV capacity

• Community-based, pro-poor approach

– New mechanisms for equitable sharing– Local ownership and capacity

Bio-rights

Page 29: Peatlands, carbon and climate change

Rapid action needed

or 2020…?


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