RM of Westbourne Bulletin 99-36 - Agriculture and Agri-Food Canada

Page 10 Information Bulletin 99-36 Rural Municipality of WestbourneGeneralized Soil Map.The most recently available soil maps were digitized to produce thenew digital soil map. For older reconnaissance soil maps, areas ofoverprinted symbols or significant differences in topography havebeen delineated as new polygons. All soil polygons have beendigitized and translated into modern soil series equivalents.The general soil groups provide a very simplified overview of thesoil information contained in the digital soil map. The hundreds ofindividual soil polygons have been simplified into broad groups ofsoils with similar parent material origins, textures, and drainageclasses. The dominant soil in each polygon determines the soilgroup, area, and colour for the generalized soil map. Gleysolic soilsgroups have poor to very poor drainage, while other mineral soilgroups typically have a range of rapid, well, or imperfectly drainedsoils.More detailed maps showing the dominant and subdominant soilsin each polygon can also be produced at larger map scales.Table 2. Generalized Soil Groups 1Soil Groups Area Percent(ha) of RMHighly Calcareous Loamy Till (Gleysols) 300 0.2Variable Textured Alluvium (Gleysols) 1823 1.4Extremely Calcareous Loamy Till 10880 8.3(Black Chernozems)Extremely Calcareous Loamy Till 273 0.2(Brunisols and Dark Gray Chernozems)Clayey Lacustrine (Gleysols) 484 0.4Loamy Lacustrine (Gleysols) 3454 2.6Sandy Loam Lacustrine (Gleysols) 686 0.5Deep Organic Fen Peat 907 0.7Shallow Organic Fen Peat 5390 4.1Sandy Lacustrine (Gleysols) 2692 2.1Clayey Lacustrine (Black Chernozems) 17230 13.2Loamy Lacustrine 32932 25.2Sandy Loam Lacustrine 23100 17.6Sandy Eolian 467 0.4Variable Textured Alluvium (Regosols) 3383 2.6Sandy Lacustrine 25060 19.1Sand and Gravel (Gleysols) 50 0.0Sand and Gravel 1047 0.8Water 586 0.4Unclassified 148 0.1Total 130891 100.01 Based on the dominant soil series for each soil polygon.