cross-national characteristics of forest land...tropical rainforest (1%) tropical moist forest (2%)...
TRANSCRIPT
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