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20 Cards in this Set
- Front
- Back
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Root Injury Soil Compaction Injury to Trunk/Branches Grade Change Excavation/Severing Root System |
Name 5 ways that trees can be adversely affected by construction. |
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Pore Space |
When soil is compacted, the _______ _______ between soil particles is reduced.
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Planning Design Grading Construction Maintenance |
The 5 phases of land development are:
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Lowered, Raised |
If the soil grade on a construction site is _______, a large percentage of a tree's root system might be removed. If the grade is _______, the tree's roots might be suffocated.
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Mulch |
A technique used to reduce soil compaction around trees on a construction site is to spread a temporary, thick layer of _______.
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False |
True/False: The overriding objective of an arborist involved in a development project is to save every tree on site. |
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True |
True/False: It is better to tunnel directly under a tree than to cut directly across the root system of a tree when excavating for utility lines.
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Fences/Barriers |
An important action that should be taken at the start of a construction project is to erect _______ around all of the trees that are to remain.
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True |
True/False: The largest, most mature trees are not always the best candidates for preservation.
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False |
True/False: There is far more that an arborist can to to treat trees that have been damaged by construction than to prevent damage.
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True |
True/False: Evaluating suitability of individual trees or strands for preservation is one of the most important tasks for arborists.
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Specifications |
Written _______ should detail exactly what can & cannot be done to & around the trees.
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Air Excavator |
Use of an _______ ______ has proven effective for soil aeration & radial trenching, causing much less root injury than mechanical excavation equipment.
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Tree Protection Zone |
The _______ _______ _______ is the area around the tree or groups of trees in which no grading, excavation or construction activity is to occur.
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Access Route |
Sometimes the single _______ _______ established to limit traffic on the site can later serve as the route for utility wires, water lines, the driveway or other paved surfaces.
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D |
When soils are compacted by construction equipment, trees usually decline because:
a.) oxygen availability is reduced b.) the ability of the roots to absorb water & minerals decreases c.) root growth & expansion may be diminished d.) all of the above |
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D |
Arborists should be involved early in the construction planning process because:
a.) tree preservation measures should be in the specifications b.) once construction has begun, it may be too late to save the trees c.) there is often little arborists can do to treat construction damage d.) all of the above |
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C |
A measure that can be taken to minimize compaction on a construction site is:
a.) watering the site thoroughly before equipment is brought in b.) permanently raising the soil grade to protect the tree roots c.) spreading a temporary, thick layer of mulch over the site d.) root pruning the trees in advance |
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D |
If a significant portion of a tree's root system has been removed during building construction, a step that will help preserve the tree is:
a.) pruning 1/3 of the crown to compensate for root loss b.) a surface application of a high rate of soluble nitrogen c.) construction of a tree well d.) none of the above |
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A |
Digging or air excavating trenches in a wheel-spoke pattern & backfilling with organic matter or a more porous soil is called: a.) radial aeration b.) tunnel aeration c.) soil fracturing d.) vertical radiation |
