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Soil Classification Overview

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Questions and Answers

What is the formative element that expresses the degree of diagnostic horizon expression within each suborder taxa?

Great group (correct)

Subgroup

Soil order

Family

How are soil suborders determined?

Based on soil moisture regimes and diagnostic features (correct)

By studying the horizon characteristics

By the number of horizons and color

By particle size class and mineralogy

What defines a soil's subgroup?

Horizon characteristics

Diagnostic features

Properties transitional to other orders (correct)

Particle size class

How are soil series differentiated among each other?

Through color and texture Signup and view all the answers

What is the smallest unit that soils are subdivided into, except for soil type and phase?

Soil series Signup and view all the answers

What determines the phases within a soil series?

Slope, erosion, or salt content Signup and view all the answers

What is the purpose of determining soil suborders?

To understand soil moisture regimes and diagnostic features Signup and view all the answers

How are soil great groups classified?

By studying horizon characteristics Signup and view all the answers

What properties define a soil's subgroup?

Properties transitional to those in other groups Signup and view all the answers

How is a soil series determined?

Using characteristics such as color and thickness Signup and view all the answers

What is included in the technical family name of a soil?

Particle size class and CEC Signup and view all the answers

Why are soil phases determined within a soil series?

To account for differences in slope, erosion, or salt content Signup and view all the answers

Soil Classification Overview

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Questions and Answers

What is the formative element that expresses the degree of diagnostic horizon expression within each suborder taxa?

How are soil suborders determined?

What defines a soil's subgroup?

How are soil series differentiated among each other?

What is the smallest unit that soils are subdivided into, except for soil type and phase?

What determines the phases within a soil series?

What is the purpose of determining soil suborders?

How are soil great groups classified?

What properties define a soil's subgroup?

How is a soil series determined?

What is included in the technical family name of a soil?

Why are soil phases determined within a soil series?

What is the major characteristic used to differentiate soil types within a series?

Which component is typically used to determine a soil's family?

What determines the formative element of a great group?

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