Podcast
Questions and Answers
What determines soil suborders?
What determines soil suborders?
- Particle size class and mineralogy
- Properties transitional or similar to other orders
- Horizon characteristics
- Soil moisture regimes and diagnostic features (correct)
Why is the great group used in soil classification?
Why is the great group used in soil classification?
- To define soil subgroups
- To determine family components
- To indicate diagnostic horizon expression within suborders (correct)
- To identify soil series
What defines a soil's subgroup?
What defines a soil's subgroup?
- Properties similar to those in other orders (correct)
- Mineralogy of control section
- Descriptive terms like particle size class
- Transitional properties
How are families determined in soil classification?
How are families determined in soil classification?
What do soil series represent in classification?
What do soil series represent in classification?
How are series different from soil types?
How are series different from soil types?
What is the defining characteristic of a soil series?
What is the defining characteristic of a soil series?
Soil suborders are primarily determined based on the soil's color.
Soil suborders are primarily determined based on the soil's color.
The great group indicates the degree of horizon expression within each soil series.
The great group indicates the degree of horizon expression within each soil series.
Soil subgroups are defined by properties that are distinct from other orders, suborders, and great groups.
Soil subgroups are defined by properties that are distinct from other orders, suborders, and great groups.
The family of a soil is determined using information detailed in chapter 12 of the Keys to Soil Taxonomy.
The family of a soil is determined using information detailed in chapter 12 of the Keys to Soil Taxonomy.
Soil series are determined solely by studying erosion phase and organic content.
Soil series are determined solely by studying erosion phase and organic content.
All soils with the same soil series name would have different characteristics across the landscape.
All soils with the same soil series name would have different characteristics across the landscape.
Phases in soil classification are determined primarily by surface texture.
Phases in soil classification are determined primarily by surface texture.
The family name in soil classification includes information about particle size class and mineralogy.
The family name in soil classification includes information about particle size class and mineralogy.
Soils classified under the same great group have identical horizon characteristics.
Soils classified under the same great group have identical horizon characteristics.
Study Notes
Soil Classification
- Soil suborders are determined based on factors other than color.
- The great group indicates the degree of horizon expression within each soil series.
Soil Subgroups
- Soil subgroups are defined by properties that are distinct from other orders, suborders, and great groups.
Soil Families
- Soil family is determined using information detailed in chapter 12 of the Keys to Soil Taxonomy.
- Family name includes information about particle size class and mineralogy.
Soil Series
- Soil series are not determined solely by studying erosion phase and organic content.
- Soil series represent a group of soils with similar characteristics, but not identical across the landscape.
Soil Phases
- Phases in soil classification are not determined primarily by surface texture.
Great Groups
- Soils classified under the same great group do not have identical horizon characteristics.
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Description
Test your knowledge on soil classification terms such as soil order, suborder, great group, subgroup, and family. Understand how these terms are determined based on diagnostic features and properties.
