Quebec Forest Inventory Dendrometric Raster Maps

Forest compilations for southern Quebec provide raster maps of dendrometric characteristics at a 20-meter pixel resolution. The data includes gross market volume per hectare, basal area per hectare, and number of stems per hectare for stands over 7 meters in height. Produced by the Government of Québec, these results support forest operations planning and represent the forest state at the time of aerial photography.

Use Cases

• Model spatial variability of gross market volume per hectare within forest stands using raster imagery.
• Analyze species-specific basal area per hectare distributions across attribution groups for commercial stems.
• Estimate sapling density by calculating number of stems per hectare for species types from separate matrix files.
• Support harvest planning by integrating raster maps of the three dendrometric variables with original ecoforest stand maps.

Strengths

• Provides three key dendrometric variables: gross market volume, basal area, and stem count, all standardized per hectare.
• Data has a defined spatial resolution of 20 meters by 20 meters per forest pixel (forel).
• Covers commercial stems and saplings (stems ≤9 cm diameter) with separate analyses for species, groups, and totals.
• Planned to cover most territory south of the 52nd parallel in Quebec.

Limitations

• Data represents a snapshot from the year the aerial photograph was taken and may not reflect current forest conditions.
• Coverage is limited to ecoforest stands 7 meters or more in height, excluding younger or shorter vegetation.
• Sample data and specific row/column counts for the raster data are unavailable for assessing dataset scale.

Provenance

Source

Government and Municipalities of Québec, ecoforest inventory program.

Collection Method

Generated from aerial photography and forest inventory compilations, presented as raster format matrix maps.

Time Range

Year of aerial photograph capture (specific years not provided).

Freshness

null

Geography

Southern Quebec, specifically ecoforest stands south of the 52nd parallel.