Extras Flashcards

0
Q

What would give a horizon low hydraulic conductivity?

A

Clay, sandy clay, silty clay with weak or moderate stucture.
Silty clay loam with weak structure.
Fragipan, Cr, or R.

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1
Q

Restricting layers for effective soil depth?

A

Fragipan, lithic, or paralithic.

A sand / gravel layer with “insufficient” fines.

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2
Q

What would give a horizon high hydraulic conductivity?

A

sand or loamy sand.
Sandy loam with very high organic matter.
High rock fragments with “insufficient fines”

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3
Q

Redox features with an abundance of few occupy how much of the horizon?

A

<2% of the horizon

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4
Q

Redox features with an abundance of common occupy how much of the horizon?

A

2 to 20% of the horizon

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5
Q

Redox features with an abundance of many occupy how much of the horizon?

A

> 20% of the horizon

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6
Q

Explain how a redox feature would have faint contrast.

A

Vide not only on close examination

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