Fires in biogeochemical cycles - Copernicus.org · 2020. 4. 29. · Fires in biogeochemical cycles:...
1
(1) Hamilton et al. (2020) Impact of Changes to the Atmospheric Soluble Iron Deposition Flux on Ocean Biogeochemical Cycles in the Anthropocene (2) Barkley et al. (2019) African biomass burning is a substantial source of phosphorus deposition to the Amazon, Tropical Atlantic Ocean, and Southern Ocean Pacific Ocean soluble iron dep. 1 Southern Ocean soluble iron dep. 1 Amazon soluble phosphorus 2 Selected NASA images of phytoplankton & fire plumes from MODIS Terra & Aqua (proviso: correlation ≠ causation) Fires in biogeochemical cycles: 2010 to 2100 1750 to 2010 driven mainly by altered fire regimes in: 2010 to 2100 1750 to 2010 driven by altered dust & fire regimes in: Southern Ocean drives global Carbon Cycle response Pacific drives global Nitrogen Cycle response combustion > dust transport 7600:1 5300:1 1000:1 1300:1 200:1 1000:1 Dust Anth . Fire Dust Anth . Fire Southern Ocean Carbon Export Efficiency gC sequestered per gFe soluble Pacific (30S - 30N) N - Fixation gN fixed per gFe soluble Phosphorus Combustion Dust 1.0 0.8 0.6 0.4 0.2 0.0 J F M A M J J A S O N D African soluble phosphorus contribution
Transcript of Fires in biogeochemical cycles - Copernicus.org · 2020. 4. 29. · Fires in biogeochemical cycles:...
(1) Hamilton et al. (2020) Impact of Changes to the Atmospheric Soluble Iron Deposition Flux on Ocean Biogeochemical Cycles in the Anthropocene(2) Barkley et al. (2019) African biomass burning is a substantial source of phosphorus deposition to the Amazon, Tropical Atlantic Ocean, and Southern Ocean
Pacific Ocean soluble iron dep.1Southern Ocean soluble iron dep.1 Amazon soluble phosphorus2Selected NASA im
ages of phytoplankton & fire plum
es from M
ODIS Terra & Aqua(proviso: correlation ≠ causation)
Fires in biogeochemical cycles:
2010
to 2
100
1750
to 2
010
driven mainly by altered fire regimes in:
2010
to 2
100
1750
to 2
010
driven by altered dust & fire regimes in:
Southern Ocean drives global Carbon Cycle response
Pacific drives global Nitrogen Cycle response
combustion > dust transport 76
00:1
5300
:1
1000
:1
1300
:1
200:
1
1000
:1
Dust Anth.Fire
Dust Anth.Fire
Southern OceanCarbon Export
EfficiencygC sequestered
per gFesoluble
Pacific (30S-30N) N-Fixation
gN fixed per gFesoluble
Phosphorus
Combustion
Dust
1.00.80.60.40.20.0
J F M A M J J A S O N D
African soluble phosphorus contribution
