(why anyone should spend 3 years studying…) …fire and the changing carbon cycle of miombo...
TRANSCRIPT
(Why anyone should spend 3 years studying…)
…Fire and the changing carbon cycle of miombo woodlands
Casey Ryan
Supervisors: Mat Williams, John Grace and Chris Merchant
Where? Who?
• 45 million people
• Average income $0.2/day
( $2/day)
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What happens there?
Annual rainfall, Chitengo, Mozambique (mm)
0
200
400
600
800
1000
1200
1400
1999 2000 2001 2002 2003 2004 2005
What happens there?
Monthly Rainfall and Temp, Chitengo, Mozambique (mm, °C)
0
20
40
60
80
100
120
140
160
180
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
24
25
26
27
28
29
Regional importance
Fire: A global phenomena
Fire in miombo: chemistry
Black carbon
• Mass combusted ≈ next year’s growth
• No net source of CO2
• 1% converted to black carbon
Fire in miombo: ecology
Tree Cover %
Bond et al, 2004 using the Sheffield DGVM
With Without
15 x 1ha plots
tree growth and mortality
AnnualSoil chemistry
Black carbon
Fire intensity
…
Future work
Leaf area
Litter fall
Understory reflectance
Monthly
Thanks
Aurora Madal Augusta Paulito