Chapter 13 Trees and construction

Question 1

Name 5 ways that trees can be adversely affected by construction.

Answer 1

Root injury
Soil compaction 
Injury to trunk 
Grade change 
Excavation/serving root system

Question 2

When soil is compacted, the ______ _______ between soil particles is reduced.

Answer 2

Pore space

Question 3

The phases of land development are:

Answer 3

Planning 
Design
Grading 
Construction 
Maintenance

Question 4

If the soil grade on a construction site is _______, a large percentage of a trees root system might be removed. If the grade is ________, the trees roots might be suffocated.

Answer 4

Lowered, raised

Question 5

A technique used to reduce soil compaction around trees on a construction site is to spread a temporary, thick layer of

Answer 5

Mulch

Question 6

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.

Answer 6

True

Question 7

The overriding objective of an arborist involved in a development project is to save every tree on this site

Answer 7

False

Question 8

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.

Answer 8

Fences/ barriers

Question 9

The largest, most mature trees are not always the best candidates for preservation.

Answer 9

True

Question 10

There is far more than an arborist can do to treat trees that have been damaged by construction than to prevent the damage.

Answer 10

False

Question 11

Evaluating suitability of individual trees or stands for preservation is one of the most important tasks for the arborist.

Answer 11

True

Question 12

Written _______ should detail exactly what can and cannot be done to and around the trees.

Answer 12

Specifications

Question 13

Use of an _____ ______ has proven effective for soil aeration and radial trenching, causing much less root injury than mechanical excavation equipment.

Answer 13

Air excavator

Question 14

The _____ _____ _____ is the area around the tree or groups of trees in which no grading, excavation, or construction activity is to occur.

Answer 14

Tree protection zone

Question 15

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.

Answer 15

Access route