Which of the following is not a characteristic of agricultural soils under the classified subclasses?

The characteristic of agricultural soils that is not typically associated with the classified subclasses is the presence of buffers that enhance crop resilience. Generally, agricultural soils are categorized based on specific limitations or concerns that can adversely affect their productivity and usability.

Excess soluble salts, for example, are a common issue that can impede plant growth, making it a defining characteristic of certain soils. Inundation, or flooding, is another significant factor that can affect how and when soils can be used for cultivation. Topography often has a direct impact on farming operations, influencing costs related to tillage, planting, and maintenance.

In contrast, while buffers in agricultural soils can have positive effects, they are not usually highlighted as specific characteristics within the classifications of agricultural soils. Instead, soil classifications tend to focus more on the challenges or limitations posed by the soil's physical and chemical properties, rather than on beneficial factors that promote resilience.