From 1 - 10 / 55
  • Categories  

    The ecoforestry maps in the third inventory cover almost the entire territory south of the 52nd parallel. Each file covers an area of approximately 250 km2. These digital maps illustrate forest stands. They were prepared from photo-interpretation of aerial photos at a scale of 1/15,000. Main components: • contour of forest stands • subclusters of species in all stands; • vegetation type (forest species, density, height and stage of development, origin) • age class • disturbance; • nature of terrain (peatlands, gravel, etc.); • territorial subdivisions; • hydrography; • network of transport and bridges; • slope classes; • defoliation class; • surface deposition; • drainage class; • ecological type. **This third party metadata element was translated using an automated translation tool (Amazon Translate).**

  • Categories  

    As part of the provincial LiDAR sensor data acquisition project, a topographic humidity index was produced from the aerial Light Detection and Ranging (LiDAR) digital terrain model. The matrix layers produced thus provide information on the potential for water accumulation in the territory depending on the slope and accumulation at a given pixel. **This third party metadata element was translated using an automated translation tool (Amazon Translate).**

  • Categories  

    The temporary sample plot is a circular sampling unit that covers an area of 400 m2. It observes and measures for each tree the species, diameter, sunshine, stage relative to other trees, as well as defoliation and quality for stems of deciduous trees and some pine trees. In addition, the age and height of three trees are determined. Finally, a survey of the site and vegetation of the undergrowth is carried out, and the characteristics of the soil are noted. Pplot data also includes information about the location of plots and the sampling plan. These data are acquired as part of the third ecoforestry inventory of southern Quebec. They are used in particular to produce forest compilation results used to feed the calculation of forest opportunities in public forest in Quebec. They can also be useful for the development of private forest. These plots were implemented from 1992 to 2005. This database covers almost all of the territory south of the 52nd parallel of Quebec's public and private forest. **This third party metadata element was translated using an automated translation tool (Amazon Translate).**

  • Categories  

    The surface deposit is the layer of loose material that covers the rock. The depot may have been established when the glacier was removed at the end of the last glaciation or by other processes associated with erosion and sedimentation. The nature of the loose deposit is assessed from the shape of the terrain, its position on the slope, the texture of the soil or other indices. Surface deposition maps make it possible to distinguish the major categories of surface deposits and to know their nature, thickness and distribution on Québec territory. Based on the interpretation of aerial photographs at a scale of 1/40,000 and field checkpoints as part of the Southern Quebec ecoforestry inventory, this mapping contributes notably to the development of ecological forest products. This mapping covers almost the entire territory of Quebec south of the 52nd parallel. It is distributed by map sheet at a scale of 1/50,000. Surface deposits have a minimum area of 4 ha. **This third party metadata element was translated using an automated translation tool (Amazon Translate).**

  • Categories  

    Forestry infrastructure mapping corresponds to the forest area from which trees have been removed for infrastructure purposes, for example, for the establishment of power lines, agricultural areas or hydroelectric reservoirs, or for separate purposes of forest harvesting. The areas contained in this mapping date back to 2003. This mapping covers almost all of the territory south of the 52nd parallel of Quebec's public and private forest. The information constituting it comes from different sources. For example, the Quebec Topographic Database is used for hydroelectric reservoir launch mapping. The minimum mapping area is 0.1 ha. **This third party metadata element was translated using an automated translation tool (Amazon Translate).**

  • Categories  

    Wildfire mapping shows forest fires that occurred mainly in southern Quebec. These mapping data help to improve knowledge of fire regimes and meet the specific needs of special forest fire management plans. They can also be used to address a variety of study and research needs, such as climate change impact analysis, after-fire regeneration modelling, and ecosystem dynamics study. This information is obtained from and produced from a variety of sources, including satellite imagery, aerial photographs, field and aerial surveys, dating of fire scars and archival documents. These data contain four types of mapping: • Detailed fire mapping from 1976 to present. These data include the types of burns, total and partial burns, where information is available. In addition, for fires that have been the subject of characterization, information on fire patterns classes. The minimum mapping area can be up to 0.1 ha, depending on the source products used. • Simplified light contour mapping from 1972 to present. It presents the external contours of the lights (without fragmentation), in order to represent them globally in a product easily usable and integrable in common information systems, GPS or other. As a result of the merging of detailed fire mapping, this product has been designed to meet a variety of customer needs. • The mapping of fire origin points that have been identified by the protection agencies (e.g., SOPFEU) for the period 1972 to present. It includes the date, the source of ignition (human or lightning) and the protection zone. • The mapping of ancient fires refers to fires that occurred between the very end of the 19th century and 1975. Fire outlines are derived from forest maps in the first and second inventory, in addition to information contained in the ecoforestry maps of the third and fourth inventory. The dating of the fires is made from sample plots comprising the analysis of fire scars and archival documents. These data are only available for the regions: Saguenay-Lac-Saint-Jean (02), Bas-Saint-Laurent (01), Gaspésie-Îles-de-la-Madeleine (011) and Abitibi-Témiscamingue (08). **This third party metadata element was translated using an automated translation tool (Amazon Translate).**

  • Categories  

    Satellite image mosaics are products designed by combining several adjacent tiles of satellite images from the Landsat or Sentinel sensor. The coverage of mosaics varies according to the years of acquisition, ranging from southern Quebec to Quebec as a whole. These mosaics are designed to identify land-use classes, including forest, agricultural, wetlands and human-modified habitats. They also provide an overview of the various natural disturbances that occur in the territory. Ultimately, they provide easy monitoring of changes in forest cover and natural disturbances across territory and time. These mosaics are primarily used to support planning, monitoring and land use planning. The resolution of the mosaics ranges from 10 to 30 meters. **This third party metadata element was translated using an automated translation tool (Amazon Translate).**

  • Categories  

    Harvest and reforestation mapping is produced as part of the Southern Quebec Ecoforestry Inventory in order to maintain an up-to-date portrait of the forest. Several forestry operations stakeholders are involved in maintaining this forest portrait, including the Regional Operations Sector of the Ministry of Forests, Wildlife and Parks, private forest development agencies and large landowners. This mapping contains information on forest interventions carried out in the territory (e.g., harvesting, thinning, reforestation) and the year of work. The period of work begins at the beginning of the 20th century (when information is available) until today. This mapping covers the commercial territory of Quebec's public and private forest. The minimum mapping area is 0.1 ha. Note: When there is more than one intervention in the same territory in the same year, priority is given to sustainably modifying forest cover (e.g. planting). To access all interventions in the same territory (in public forest only), please consult the Technical and Financial Activity Reports (RATF) distributed by the Department's Regional Operations Sector on the government website of Data Québec. **This third party metadata element was translated using an automated translation tool (Amazon Translate).**

  • Categories  

    The cubage tariff is presented in the form of a table. It gives, in essence, the gross merchant volume of a stem based on its diameter at chest height (DHH) and height. These are local rates, that is, the height used in the general tariff equation is predicted by height-DHP relationships developed per sample unit. The cubage rate is produced for the main forest species in southern Quebec and covers almost all of the territory south of the 52nd parallel. **This third party metadata element was translated using an automated translation tool (Amazon Translate).**

  • Categories  

    The forest information system by tesselle (SIFORT) is a system that has been created to meet various needs for analysis and knowledge of Quebec territory. SIFORT is a database composed of polygonal units of 15 seconds (latitude) by 15 seconds (longitude), with an average area of approximately 14 hectares. Tesselle information is obtained by attributing forest data to the tesserum centroid. Thus, for each of the tesseras, information such as cover type, original disturbance type, year of disturbance, gasoline, density, etc. This system integrates forest information from the various forest inventories (first, second, third, fourth and fifth inventories, where available) and offersadvantage of creating a fixed analysis grid in space. In order to relate the forest composition of the territory to various natural disturbances (e.g. fire and insects) and forest interventions, SIFORT allows to feed various statistical and temporal studies and analyses aimed at ensuring sustainable management of Quebec's forest territory. **This third party metadata element was translated using an automated translation tool (Amazon Translate).**