Soil Compaction Test

Soil Compaction Test
Please fill out your email address in the first box and your name, ISA cert. no. & specialty in the second box. Answer the questions below and when you are finished, press submit.

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Question: 1. Large sized soil pores:
have large water holding capacity.
have more total pore space.
are usually filled with air.
are usually filled with water.

Question: 2. Which is not an attribute of soils?
Soil depth.
Organic matter.
Developed structure.
Compaction.

Question: 3. Compaction:
has 50% pore space.
45% mineral materials.
makes it impossible for trees to grow.
is an ideal soil.

Question: 4. Compaction creates which negative impact?
The volume of ecologically active space is increased.
Root space is increased.
Microorganism associations are improved.
The diversity of living things declines.

Question: 5. The components of soil compaction are:
compression.
compaction.
consolidation.
All of the above.

Question: 6. Crusting is:
caused by pressure from foot and vehicle traffic.
the packing of fine particles and organic matter on the soil surface.
the deformation of the soil destroying any pore space.
All of the above.

Question: 7. Compression occurs:
when soil structure is squashed.
from the impact of raindrops.
from the movement of sand, silt, and clay particles.
when large air-filled pore spaces are crushed.

Question: 8. Bulk density is:
a measure of soil compaction.
a measure of oxygen availability.
the soil gas exchange.
the weight of the soil per unit volume.

Question: 9. Highly modified growth regulation patterns will change:
carbon allocation.
food production.
transport processes.
All of the above.

Question: 10. Compaction can lead to which structural disruption?
Root decline.
Weakened structure of the tree.
Top and root dieback.
All of the above.

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