Soil Taxonomy IntroSoils

Soil Taxonomy IntroSoils - An Introduction to Soil Taxonomy...

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An Introduction to Soil Taxonomy and the Soil Orders Photographs from Soil Taxonomy and the C.F. Marbut Memorial Slide Collection
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Objectives • To provide you with information to understand basic characteristics of soils, given the soil name • Soils are mapped and inventoried (surveyed); much of survey basis is soil taxonomy
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Plant Classification • Kingdom •P h y l u m • Class •S u b c l a s s •O r d e r •F a m i l y • Genus • Species Plantae Pterophyta Angiospermae Dicotyledoneae Rosales Fabaceae Trifolium Trifolium repens
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Soil Classification • Order Mollisols • Suborder Xerolls • Great group Argixerolls • Subgroup Typic Argixerolls • Family fine, smectitic, thermic Typic Argixerolls • Series Los Osos series
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Formative element • Syllable in the soil order name, that continues in the soil classification through the family level. Moll isols: Aquoll s, Xeroll s, Argixeroll s Vert isols: Aquert s, Xerert s, Haploxerert s If you know the important characteristics of each soil order, you can predict something about its chemical and physical properties, and its management
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Soil Moisture Regimes (SMR) • Aquic • Aridic (torric) •U s t i c •X e r i c •U d i c
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Soil orders 12, in alphabetical order • Alfisols •A n d i s o l s •A r i d i s o l s • Entisols • Gelisols • Histosols • Inceptisols • Mollisols • Oxisols • Spodosols • Ultisols • Vertisols
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This note was uploaded on 04/03/2008 for the course SS 121 taught by Professor Staff during the Winter '07 term at Cal Poly.

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Soil Taxonomy IntroSoils - An Introduction to Soil Taxonomy...

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