Study area
This protocol is extracted from research article:
Digital mapping of soil texture in ecoforest polygons in Quebec, Canada
PeerJ, Jun 23, 2021; DOI: 10.7717/peerj.11685

The study area corresponds to the forest area below the current northern limit of the managed forest in the province of Quebec, Canada. It extends up to approximately lat. 52°N and covers approximately 583,000 km2, of which 434,667 km2 are classified as productive forests. The normal mean annual temperature (1971–2000) varies approximately from −2.6 °C to 7.4 °C, and annual precipitation ranges from 770 mm to 1,600 mm (Duchesne et al., 2016). This territory comprises 3 different forest subzones which are mainly associated with variations in the mean annual temperature along the latitudinal gradient (Fig. 1). They are, from south to north: the hardwood forest, the mixed forest, and the continuous boreal forest (MRN, 2013). Based on available knowledge of the physiographic regions of Eastern Canada, 5 soil provinces also characterize the study area (Lamontagne & Nolin, 1997): the St. Lawrence Lowlands, the Appalachians, the Laurentians, the Abitibi and James Bay Lowlands, and the Mistassini Highlands (Fig. 1). They can be distinguished according to parent material, topography, and climate (Lamontagne & Nolin, 1997).

Maps were produced with QGIS software, version 3.4 (QGIS, 2020). Basemap credit: ©2021 TerraMetrics, ©2021 Google, Esri, HERE, Garmin, ©OpenStreetMap contributors, and the GIS User Community.

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