Questions and Answers
What factors influence the characteristics of soil?
Climate, macro- and microorganisms, and parent material.
According to the Soil Science Society of America, what is soil?
The unconsolidated mineral or organic material on the immediate surface of the Earth that serves as a natural medium for the growth of land plants.
How does a product-soil differ from its source material?
In physical, chemical, biological, and morphological properties and characteristics.
What defines the upper limit of soil?
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What is not considered soil?
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Study Notes
Factors Influencing Soil Characteristics
- Parent material, climate, topography, biotic factors, and time influence soil characteristics
Definition of Soil
- According to the Soil Science Society of America, soil is a naturally occurring, dynamic, and heterogeneous mixture of mineral and organic components, as well as living organisms
Product-Soil vs. Source Material
- A product-soil differs from its source material due to changes in its physical, chemical, and biological properties through pedogenesis (soil formation)
Upper Limit of Soil
- The upper limit of soil is defined by the boundary between the soil and the atmospheric zone, where the influence of the atmosphere on soil properties is minimal
Exclusions from Soil
- Living organisms, water, and ice are not considered soil
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