Quantifying Global Soil Carbon Losses in Response to Warming

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Thomas Crowther Using functional traits in the search for predictable patterns in fungal biogeography Quantifying Global Soil Carbon Losses in Response to Warming

Transcript of Quantifying Global Soil Carbon Losses in Response to Warming

Page 1: Quantifying Global Soil Carbon Losses in Response to Warming

Thomas Crowther

Using functional traits in the search for predictable patterns

in fungal biogeography

Quantifying Global Soil Carbon Losses in Response to Warming

Thomas Crowther
Page 2: Quantifying Global Soil Carbon Losses in Response to Warming

Background

Action without understanding can be ineffective or even damaging

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Background

Cane Toads to Australia

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?Crowther et al. 2015 Nature

The Billion Tree Campaign

Background

The Trillion Tree Campaign14 Billion new trees

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Background

Current (880 Pg)

Global Soil Carbon Sequestration

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Background

Future(?)

Global Soil Carbon Sequestration

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Background

Potential(?)

Global Soil Carbon Sequestration

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Background

Potential(?)

Global Soil Carbon Sequestration

–Future(?) = ?

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Friedlingstein et al. 2014, J Climate

Background

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Assay temperature (°C)

M

ass

spec

ific

resp

iratio

n (μ

g C

mg–1

h–1

)

Cold-adapted

Warm-adapted

Crowther & Bradford 2013. Ecology Letters

Carbon Feedback

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Temperature (°C)

Forests

Log

Res

pira

tion

(µm

ol.m

-2.s

-1)

Temperature (°C)

Log

Res

pira

tion

(µm

ol.m

-2.s-1

)

Grassland

Shrubland

Temperature (°C)

Log

Res

pira

tion

(µm

ol.m

-2.s

-1)

Carey et al. 2016 PNAS Carbon Feedback

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Temperate forestBoreal ForestTemperate GrasslandShrublandDesertAgriculturalOther

All Ecosystems

Temperature (°C)

Log

Res

pira

tion

(µm

ol.m

-2.s

-1)

Carey et al. 2016 PNAS Carbon Feedback

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Decomposition & Respiration

Photosynthesis

Stabilization

Carbon Feedback

Tom Crowther
Ultimately, if warming changes the relative sizes of these C pools, it will have drastic implications for the climate
Tom Crowther
Ultimately, if warming changes the relative sizes of these C pools, it will have drastic implications for the climate
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Climate

Topography Vegetation

Soil

Carbon Feedback

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Chan

ge in

C st

ock

(gC.c

m-3

.yea

r-1)

Background

Environmental Variables

Carbon Feedback

Mafipulate

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49 Studies Carbon Feedback

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Crowther et al. (2016). Nature Carbon Feedback

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Crowther et al. (2016). Nature Carbon Feedback

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Carbon Feedback

Reddit

Yahoo

Crowther et al. (2016). Nature

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Carbon FeedbackTodd-Brown & Crowther In review

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Forest Management

On-going work

Amendments

Regenerative Agriculture

Restoration

Warming

Nutrient Enrichment

Drought

CO2

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Acknowledgements