Soils Unit 2

Which of the following is NOT a degradation management strategy?

• Enhance organic matter

• Improper irrigation

• Avoid excessive tillage

• Prevent compaction

Which of the following is NOT one of the main causes of degradation?

• erosion

• contamination

• construction

• deforestation

Lowering of the quality of soil or a loss of soil productivity is what?

• soil degradation

• soil erosion

• soil contamination

• salinization

Which of the following does improper irrigation NOT cause?

• saltation

• salinization

• alkalization

• waterlogging

What erosion management practice is an earthen embankment around a slope that stops water flow of guides it off of a field?

• terrace

• grade control structure

• grassed waterways

• crop residue management

What erosion management practice drops water safely from one level to another preventing gullies?

• grade control structure

• terrace

• critical area planting

• grassed waterways

What are the three steps to erosion?

• detachment, transport, deposition

• loosening, moving, placing

• detachment, moving, placement

• loosening, transportation, deposition

What erosion management practice is planting grass or other vegetation to protect a badly eroding area from further erosion?

• critical area planting

• grassed waterways

• crop residue managment

• terrace

What is the process in which soil is moved?

• erosion

• transportation

• translocation

• transport

An accumulation of soluble salts

• salinization

• alkalization

• saltation

• desalination