17:
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Marbut's
Pedocal/Pedalfer boundary lies near the 98 meridian and 30 inches annual precipitation. (after Marbut, 1935)
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52:
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is the formative element in the
Alfisol name, and refers to aluminium (Al) and iron (Fe).
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36:
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47:. Pedalfers usually occur in humid areas. It is not used in the current
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112:. U.S. Government Printing Office, Washington, D.C. pp. 979–1001.
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is composed of aluminum and iron oxides. It is a subdivision of the
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163:((First Edition) ed.). W. W. Norton & Company, Inc.
69:
Pedalfer is a formative element in the United States
62:Pedalfers have three subdivisions of which one is
8:
110:Soils and Men: Yearbook of Agriculture 1938
119:"Soil Classification in Geology Textbooks"
55:but the term commonly shows up in college
15:
7:
14:
117:Brevik, Eric C. (November 2002).
126:Journal of Geoscience Education
1:
31:comprising a large group of
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138:10.5408/1089-9995-50.5.539
159:Marshak, Stephen (2004).
21:
161:Essentials of Geology
39:increase relative to
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53:soil classification
96:USDA soil taxonomy
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29:zonal soil order
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73:system for the
71:soil taxonomic
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132:(5): 539–543.
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45:soil formation
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193:Types of soil
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170:0-393-92411-4
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49:United States
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149:. Retrieved
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77:soil order.
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37:sesquioxides
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23:
182:Categories
151:2006-04-06
122:(abstract)
102:References
51:system of
146:116487861
64:Lateritic
35:in which
188:Pedology
85:See also
75:Alfisols
59:texts.
25:Pedalfer
91:Pedocal
66:soils.
57:geology
43:during
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41:silica
142:S2CID
33:soils
165:ISBN
134:doi
79:Alf
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140:.
130:50
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124:.
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154:.
136::
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