Page 635 - Geosystems An Introduction to Physical Geography 4th Canadian Edition

Whitehorse
Victoria
0 500 Kilometres
Iqaluit
Yellowknife
Edmonton
Regina Winnipeg
St. John’s
(a) Distribution of Vertisolic order in Canada.
(b) Vertisolic soil profile in Saskatchewan.
Canadian System of Soil Classification
Chernozemic
Solonetzic (Solonetz)
Luvisolic (Luvisol)
Podzolic (Podzol)
Brunisolic (Cambisol)
Regosolic (Fluvisol, Regosol)
Gleysolic Organic Cryosolic Vertisolic
World Reference base (FAO-UNESCO)
kastanozem, Chernozem, Greyzem, Phaeozem Mainly discernible leaves, twigs, and woody materials
Partially decomposed, somewhat recognizable L materials indiscernible organic materials
Mesic materials of intermediate decomposition
Humic material at an advanced stage of decomposition—low fibre, high bulk density
Gleysol, Planosol Histosol
Cryosol
Vertisol
U.S. Soil Taxonomy
Mollisols (Borolls)
Mollisols, Alfisols (Natric great groups); some Aridisols
Alfisols (Boralfs and Udalfs) Spodosols, some inceptisols inceptisols, Aridisols (Psamments)
Entisols
Several orders: “Aqu-” suborders Histosols
Gelisols
Vertisols (six suborders)
*Only generalizations are possible; these are nearest equivalents or orders (or suborders), if applicable.
Queébec OTTAWA
Toronto
Halifax
▲Figure 18.25 Vertisolic order. [(a) Thematic Soil Maps of Canada: Vertisolic order, atlas.agr.gc.ca/agmaf/index_eng.html#context=soil-sol_en.xml, Agriculture and Agri-Food Canada ©, 2010. Reproduced with the permission of the Minister of Public Works and Government Services, 2012; (b) Darwin Anderson, Professor Emeritus University of Saskatchewan.]
TAblE 18.3 Canadian Soil Orders Correlated to World reference Base for Soil Orders (Food and agriculture Organization UNeSCO) and the U.S. Soil taxonomy*
Source: Canadian System of Soil Classification, 3rd ed., Table 18.4, Canadian Soil Orders, Agriculture and Agri-Food Canada. © 1998. Reproduced with the permission of the Minister of Public Works and Government Services, 2012.
Vertisolic Order Map of Canada
Humic Vertisol Vertisol
Charlottetown Fredericton
Chapter 18 The Geography of Soils 599