Esri, DeLorme, GEBCO, NOAA NGDC, and other contributors

Projection: Lambert Azimuthal Equal Area

0 860 1,720430 km ±

North American Forestry Commission (NAFC) Inventory and Monitoring Working Groupin cooperation with the Commission on Environmental Cooperation (CEC)

Primary forest ecological zones

Polar

Boreal mountain system

Boreal tundra woodland

Boreal coniferous forest

Temperate mountain system

Temperate desert

Temperate steppe

Temperate continental forest

Temperate oceanic forest

Subtropical mountain system

Subtropical desert

Subtropical steppe

Subtropical dry forest

Subtropical humid forest

Tropical mountain system

Tropical dry forest

Tropical moist forest

Tropical rainforest

Water

No data

Cross-national characteristics of forest land

FORESTOWNERSHIP

Public sub-national 38%

Community1%

Private individuals55%

Public national5%

52% forested98 million ha of forest

Temperate continental forest

FOREST TYPEBroadleaved 52%Temporarily non-treed 2%

Conifer 20%Mixed 26%

62% forested38 million ha of forest

Subtropical mountain system

FOREST TYPEConifer 40%Mixed 29%Broadleaved 30%Temporarily non-treed 1%

Public sub-national 1%

Other or unknown40%

Community22%

Private individuals14%

Public national23% FOREST

OWNERSHIP

35% forested31 million ha of forest

Boreal mountain system

FOREST TYPEConifer 82%Mixed 11%Broadleaved 6%Temporarily non-treed 1%

FORESTOWNERSHIP

Public sub-national 90%

Community5%

Private individuals1%

Public national4%

4% forested4 million ha of forest

Subt

ropic

al de

sert

FOREST TYPEConifer 18%Mixed 13%Broadleaved 62%Temporarily non-treed 8%

FORESTOWNERSHIP

Public sub-national 4%

Community11%

Private individuals13%

Public national24%

Other or unknown47%

Le ministère des ressources naturelles du gouvernement du Canada

North American

Data base

COMMON DATA ELEMENTS

COUNTRIES

FORESTED ECOZONES

Moving forward

For more information, visit: www.fs.fed.us/global/nafc/inventory/aboutus.htm

A project by:

Establish on-line platform available to general public

Examine the possibility of integrating plot data

Prepare and harmonize additional variables

MILLION HECTARES

The collaborative process

3 elements selected for phase one• Forested area• Volume• Above-ground biomass

175 total data elements50 were common to USA, MEX, and CAN85 were common to at least 2 countries40 were unique to only one country

Tree volume in North America by forest type

Forest

PolarBoreal mountain systemBoreal tundra woodlandBoreal coniferous forest

Temperate mountain systemTemperate desertTemperate steppe

Temperate continental forestTemperate oceanic forest

Subtropical mountain systemSubtropical desertSubtropical steppe

Subtropical dry forestSubtropical humid forest

Tropical mountain systemTropical dry forest

Tropical moist forestTropical rainforest

100%50%25% 75%

Non-forested

What is the proportion of forest to nonforest in each ecozone?Tree volume in North America by biome

Common to all29%

Common to two49%

Unique to one23%

Variableselection

18 percent of global forest

area

3

50723

17

Preliminary results

How are North America’s forests distributed by

ecozone?*

Temperate oceanic forest (<1%)

Subtropical mountain system

(6%)

Temperate continental forest (15%)

Temperate steppe (1%)

Temperate desert (2%)

Temperate mountain system (20%)

Boreal coniferous forest (20%)

Boreal tundra woodland (13%)

Boreal mountain system (5%)

Tropical rainforest (1%)

Tropical moist forest (2%)

Tropical dry forest (2%)

Tropical mountain system (1%)

Subtropical humid forest (9%)

Subtropical dry forest (<1%)

Subtropical steppe (3%)

Subtropical desert (1%)

*Data do not include interior Alaska, USA

Temperate Subtropical Tropical Boreal

Volume (m3 per hectare)

203

122 118

66

Volume (m3 per hectare)

161

128

143

Conifer

Broadleaved

Mixed

Land with trees higher than 5 meters and a canopy cover of more than 10 percent, or trees able to reach these thresholds in situ. Does not include land that is predominately under agricultural or urban land use.

Forest area

All living biomass above the soil including stem, stump, branches, bark, seeds, and foliage.

Above ground

biomass

Conforms to IUCN protection categories Ia, Ib, III, IV, V, and VI.

Protection status

FRA Ownership Categories: public-national, public- subnational, private, community, and other/unknown.

Ownership categories

Forest that is temporarily non-stocked, but remains in forest land use. For example, forest area disturbed by fire or harvest that is expected to regrow.

Temporarly non-treed

forest type

Volume over-bark of all living trees with a minimum diameter of 10 cm at breast height. Includes the stem from ground level to a top of 0 cm, excluding branches.

Broadleaved forest type

Forest with neither coniferous nor broadleaved trees contributing 75% or more to the total basal area of the plot or stand.

Mixed forest type

Forest with braodleaved trees contributing 75% or more to the total basal area of the plot or stand.

Conifer forest type

Forest with coniferous trees contributing 75% or more to the total basal area of the plot or stand.

Tree volume

Data harmonization

Le ministère des ressources naturelles du gouvernement du Canada

SOURCECommission on Environmental Cooperation: Ecoregions Level 3