Government and Municipalities of Québec

The link: Access the data directory is available in the sectionDataset Description Sheets; Additional Information. Surface deposit is the layer of loose material that covers rock. The deposit may have been established during the retreat of the glacier at the end of the last glaciation or by other...

The temporary sample plot is a circular sample unit that covers an area of 400 m2. For each tree, we observe and measure the species, diameter, sunlight, and floor in relation to other trees, as well as the defoliation and the quality of the stems of deciduous trees and certain pines. In...

Note that topographic maps at a scale of 1/20,000 are no longer updated. For the latest update date, see the [metadata] (ftp://transfert.mern.gouv.qc.ca/public/diffusion/RGQ/Documentation/BDTQ/Metadonnees_Topo-20K.xls). The reference cartographic data is now constituted according to a continuous...

The temporary sample plot is a circular sample unit that covers an area of 400 m2 (the main unit). For each tree, we observe and measure the species, diameter, and stage in relation to other trees, as well as the defoliation and the quality of the stems of deciduous trees and certain pines. In...

From 1986 to 2000, a major ecological inventory program was carried out in the forests of southern Quebec in order to describe the diversity of forest ecosystems. In total, 28,425 ecological observation points (POE) were established on a territory covering 760,000 km2, located between 45° and 53°...

Deposit is the layer of loose material that covers rock. It may have been established during the retreat of the glacier at the end of the last glaciation or by other processes associated with erosion and sedimentation. The nature of the loose deposit is evaluated based on the shape of the land,...

__The link: * Access the data directory is available in the sectionDataset description sheets; Additional information__. The ecoforest inventory north of the northern limit of attributable forests is an extensive inventory that was carried out for specific knowledge acquisition needs. It was...

Permafrost is any soil or rock whose temperature has remained below 0°C for years. In the extreme north of Quebec, it is omnipresent and very thick. At its boreal margin, further south, it appears in the landscape in the form of isolated thin plates, whose thickness is generally less than 10 m....

The ecological classification of Quebec territory consists of mapping and describing ecological units in a system with nine levels of perception between the continental and landscape scales. It presents the diversity of terrestrial ecosystems in all of Quebec taking into account both the...

The link: Access the data directory is available in the sectionDataset Description Sheets; Additional Information. The mapping of vegetation in Northern Quebec is a component of an extensive inventory carried out to meet knowledge acquisition needs as part of the economic, social and...

8 sets of vertical aerial views (2096 photographs in total), showing the evolution of the territory of the Island of Montreal and its immediate surroundings from 1958 to 1975 (photos taken successively in 1958, 1962, 1964, 1964, 1966, 1966, 1966, 1966, 1966, 1966, 1966, 1966, 1969, 1969, 1971,...

The temporary sample plot is a circular sample unit that covers an area of 400 m2. For each tree, we observe and measure the species, diameter, sunlight, and floor in relation to other trees, as well as defoliation and quality for the stems of deciduous trees and certain pines. In addition, the...

Note that topographic maps at a scale of 1/100,000 are no longer updated. For the latest update date, see the [metadata] (ftp://transfert.mern.gouv.qc.ca/public/diffusion/RGQ/Documentation/BDAT/Metadonnees_BDAT100k_NordSud.xls). The reference cartographic data is now constituted according to a...

Topographic mapping of northern indigenous villages is available for 23 villages. It was produced by photogrammetric method, from aerial photographs taken between 2009 and 2011. The accuracy of this mapping is of the order of ±40 centimeters in planimetry. In hypsometry, it is ±50 centimeters for...

The link: Access the data directory is available in the sectionDataset Description Sheets; Additional Information. Slope classes express the slope of land where most of the forest stand is located. The slope classes are generated from a numerical model combining terrain slopes into six classes: +...