Certified Arborist Test Urban Forestry 3

Question 1

What is an 'urban forest management plan'?

Accepted Answer

A strategic document guiding the planting, care, and management of a city's entire tree population

Answer

An urban forest management plan establishes goals, policies, and strategies for managing a city's tree population including planting targets, maintenance schedules, risk management, and budget allocation.

Question 2

How do urban trees contribute to improved air quality?

Accepted Answer

They filter pollutants like ozone, particulate matter, and nitrogen dioxide through their leaves

Answer

Trees remove air pollutants by absorbing gases (O3, NO2, SO2) through stomata and intercepting particulate matter on leaf surfaces. While some species emit VOCs, the net effect on air quality is positive.

Question 3

What challenge do urban trees face that forest trees typically do not?

Accepted Answer

Restricted root space, soil compaction, pollution, salt, heat stress, and physical damage

Answer

Urban trees face a harsh environment: compacted soil with limited volume, road salt, air pollution, reflected heat from pavement, restricted root space, mechanical damage, and vandalism.

Question 4

What is the recommended practice for utility line clearance pruning?

Accepted Answer

Directional pruning to redirect growth away from lines

Answer

Directional pruning removes branches growing toward utility lines while maintaining the tree's natural form. This is more sustainable than topping, which stimulates dense, weakly attached regrowth.

Question 5

How are urban tree benefits typically quantified for public policy decisions?

Accepted Answer

By calculating the dollar value of ecosystem services using tools like i-Tree

Answer

Tools like i-Tree quantify urban tree benefits in dollar values: stormwater reduction, energy savings, air quality improvement, carbon sequestration, and property value increases.

Certified Arborist Test Practice Test

Certified Arborist Test Practice Test

Certified Arborist Test Urban Forestry 3