Slides for Discussion Session Wood Carbon Seminars Cynthia West - - PowerPoint PPT Presentation

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Slides for Discussion Session Wood Carbon Seminars Cynthia West - - PowerPoint PPT Presentation

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Slides for Discussion Session Wood Carbon Seminars Cynthia West April 30, 2020 US Forests Net Carbon Flux Over Time USFS prediction of net carbon flux under different Net Carbon Flux of US forests 1635-2000 scenarios through 2060 From: USFS,

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SLIDE 1

Slides for Discussion Session

Wood Carbon Seminars

Cynthia West April 30, 2020

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SLIDE 2

US Forests Net Carbon Flux Over Time

From: USFS, 2012: Future of America’s forest and rangelands: 2010 Resources Planning Act

  • assessment. General Technical Report WO-87. 198 pp., U.S. Department of Agriculture, U.S.

Forest Service, Washington, D.C. URL Net Carbon Flux of US forests 1635-2000 USFS prediction of net carbon flux under different scenarios through 2060

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SLIDE 3

Southeastern plantation forests and biodiversity

Species Richness in US Forests

Source: State of America’s Forests. 2019. https://usaforests.org/

Acres of planted trees by county

Articles: Greene et al (2016) A meta-analysis of biodiversity responses to management of southeastern pine forests- opportunities for open pine conservation. Forest Ecology and Management Loehle et al (2009) Achieving conservation goals in managed forests of the Southeastern Coastal Plain Environmental Management Demarais et al (2017) Tamm Review: Terrestrial vertebrate biodiversity and intensive forest management in the U.S. Forest Ecology and Management.

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  • 600
  • 500
  • 400
  • 300
  • 200
  • 100

100 200

Woodlands Non-CO2 Conversion From Forest Conversion to Forest Urban Trees Harvested Wood Products Forest Land

Woodlands Non-CO2 Conversion From Forest Conversion to Forest Urban Trees Harvested Wood Products Forest Land Emissions 4 19.4 127.4

  • 110.6
  • 129.8
  • 98.8
  • 564.5

Components of Nation's Forest Sink 2016 - MMTCO2 Source USEPA 2017/FS data

Components of the Nation’s Forest Sink EPA 2020 GHG Inventory (2018 data)

Million metric tonnes CO2e/year

Carbon Source Carbon Sink Total Net Sink = 752.9 MMTCO2e/yr

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SLIDE 5
  • 60
  • 40
  • 20

20 40 60 80

Cropland Grassland Other lands Settlements Wetlands

Cropland Grassland Other lands Settlements Wetlands From Forests 48.7 15.9 62.9 To Forests

  • 46.3
  • 9.7
  • 14.9
  • 38.9
  • 0.9

Components of Nation's Forest Sink 2016 - MMTCO2 Source USEPA 2017/FS data

Land Use Conversion Nation’s Forest Sink EPA 2020 GHG Inventory (2017 data)

Million metric tonnes CO2e/year

Carbon Source Carbon Sink Total Net Source = 16.7 MMTCO2e/yr TO FOREST LAND USE FROM FOREST LAND USE

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SLIDE 6
  • 35
  • 30
  • 25
  • 20
  • 15
  • 10
  • 5

5 10

Woodlands Non-CO2 Conversion From Forest Conversion to Forest Urban Trees Harvested Wood Products Forest Land

Woodlands Non-CO2 Conversion From Forest Conversion to Forest Urban Trees Harvested Wood Products Forest Land Emissions 5.5

  • 4.2
  • 8.2
  • 5.93
  • 30.4

Components of Nation's Forest Sink 2016 - MMTCO2 Source USEPA 2017/FS data

Components of North Carolina’s Forest Sink EPA 2020 GHG Inventory (2018 data)

Million metric tonnes CO2e/year

Carbon Source Carbon Sink Total Net Sink = - 43.23 MMTCO2e/yr

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SLIDE 7
  • 3
  • 2
  • 1

1 2 3

Cropland Other lands Settlements

Cropland Other lands Settlements From Forests 2.5 1.3 To Forests

  • 1.7
  • 0.2
  • 2.2

Components of Nation's Forest Sink 2016 - MMTCO2 Source USEPA 2017/FS data

Land Use Conversion North Carolina’s Forest Sink EPA 2020 GHG Inventory (2017 data)

Million metric tonnes CO2e/year

Carbon Source Carbon Sink Total Net Source = 1.3 MMTCO2e/yr TO FOREST LAND USE FROM FOREST LAND USE

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SLIDE 8

Disturbances in regional context: management dominated

Healey et al. in review 14 National forests

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SLIDE 9
  • 4
  • 2

2 4 6 8 10 12

Woodlands Non-CO2 Conversion From Forest Conversion to Forest Urban Trees Harvested Wood Products Forest Land

Woodlands Non-CO2 Conversion From Forest Conversion to Forest Urban Trees Harvested Wood Products Forest Land Emissions 3.9 0.2

  • 1.7
  • 0.1
  • 0.63

10.5

Components of Nation's Forest Sink 2016 - MMTCO2 Source USEPA 2017/FS data

Components of Montana’s Forest Sink EPA 2020 GHG Inventory (2018 data)

Million metric tonnes CO2e/year

Carbon Source Carbon Sink Total Net Source = 12.17 MMTCO2e/yr

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SLIDE 10
  • 1.2
  • 1
  • 0.8
  • 0.6
  • 0.4
  • 0.2

0.2 0.4

Cropland Grassland Other lands Settlements

Cropland Grassland Other lands Settlements From Forests 0.2 To Forests

  • 1.1
  • 0.6

Components of Nation's Forest Sink 2016 - MMTCO2 Source USEPA 2017/FS data

Land Use Conversion Montana’s Forest Sink EPA 2020 GHG Inventory (2017 data)

Million metric tonnes CO2e/year

Carbon Source Carbon Sink Total Net Sink = -1.5 MMTCO2e/yr TO FOREST LAND USE FROM FOREST LAND USE

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SLIDE 11
  • 2

2 4 6 8 10 12

Woodlands Non-CO2 Conversion From Forest Conversion to Forest Urban Trees Harvested Wood Products Forest Land

Woodlands Non-CO2 Conversion From Forest Conversion to Forest Urban Trees Harvested Wood Products Forest Land Emissions 0.6 0.1 0.6

  • 1
  • 0.4
  • 0.61

11.1

Components of Nation's Forest Sink 2016 - MMTCO2 Source USEPA 2017/FS data

Components of Colorado’s Forest Sink EPA 2020 GHG Inventory (2018 data)

Million metric tonnes CO2e/year

Carbon Source Carbon Sink Total Net Source = 10.39 MMTCO2e/yr

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SLIDE 12
  • 0.8
  • 0.6
  • 0.4
  • 0.2

0.2 0.4 0.6 0.8

Cropland Grassland Other lands Settlements

Cropland Grassland Other lands Settlements From Forests 0.6 To Forests

  • 0.4
  • 0.6

Components of Nation's Forest Sink 2016 - MMTCO2 Source USEPA 2017/FS data

Land Use Conversion Colorado’s Forest Sink EPA 2020 GHG Inventory (2017 data)

Million metric tonnes CO2e/year

Carbon Source Carbon Sink Total Net Sink = -0.45 MMTCO2e/yr TO FOREST LAND USE FROM FOREST LAND USE

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SLIDE 13

Disturbances in regional context: natural disturbance dominated

Healey et al. in review 12 National forests

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SLIDE 14

Narrow view of f th the forest system

McKinley et al. 2011

E.g., timber harvesting would have an immediate negative impact.

40 20 60 80 100 Time (years) 40 20 60 80 100 Time (years)

50 150 100 200 250 Cumulative carbon (metric tons per hectare)

Short -lived products Long -lived products Soil Litter Trees Landfill Substitution Bio -energy Short -lived products Long -lived products Soil Litter Trees Landfill Substitution Bio -energy Long -lived products Soil Litter Trees Landfill Substitution Bio - Soil Litter Trees Landfill Substitution Bio -

A

Carbon emission

  • Concerned with emissions on

shorter time scales and limited geographical extent

  • Source/sink trends main way to

view impacts of management activates

  • Considers narrower range of

activities that influence carbon positively

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SLIDE 15

Complete Vie iew of f th the Forest System

50 150 100 200 250 Cumulative carbon (metric tons per hectare)

Short-lived products Long-lived products Soil Litter Trees Landfill Substitution Bio-energy Short-lived products Long-lived products Soil Litter Trees Landfill Substitution Bio-energy Long-lived products Soil Litter Trees Landfill Substitution Bio-energy Soil Litter Trees Landfill Substitution Bio-energy

A

50 150 100 200 250 Cumulative carbon (metric tons per hectare)

Short-lived products Long-lived products Soil Litter Trees Landfill Substitution Bio-energy Short-lived products Long-lived products Soil Litter Trees Landfill Substitution Bio-energy Long-lived products Soil Litter Trees Landfill Substitution Bio-energy Soil Litter Trees Landfill Substitution Bio-energy

A

40 20 60 80 100 Time (years) 40 20 60 80 100 Time (years)

McKinley et al. 2011

  • Concerned with emissions on

longer time scales and broader geographical extent

  • Impacts of management

activates are considered more holistically – closer to what the atmosphere actually “sees.”

  • Considers broader range of

activities that influence carbon positively

E.g., timber harvesting would have a positive impact right away.