SAF Conservation & Sustainability 5

Question 1

A forester calculates that a stand's current annual increment (CAI) has fallen below its mean annual increment (MAI). This relationship indicates that:

Accepted Answer

The stand has passed the age of culmination of MAI and is biologically overmature for sustained yield

Answer

When CAI drops below MAI, the stand has passed its culmination of MAI—the rotation age at which average volume production per year is maximized and beyond which productivity declines.

Question 2

Which provision of the Clean Water Act is most directly applicable to managing logging-related nonpoint source pollution in US forests?

Accepted Answer

Section 319 nonpoint source management programs

Answer

Section 319 of the Clean Water Act funds and requires states to develop nonpoint source management programs, including Best Management Practices (BMPs) for forestry operations.

Question 3

In the context of forest genetics and conservation, which practice helps maintain adaptive genetic diversity across a reforestation program?

Accepted Answer

Deploying multiple seed sources matched to local and anticipated future climate conditions

Answer

Using climatically matched, locally diverse seed sources—including assisted migration seed transfers—maintains adaptive genetic variation and builds resilience to future climate shifts.

Question 4

A silvicultural prescription that specifies leaving 15% of the stand basal area as 'legacy trees' after harvest is primarily designed to:

Accepted Answer

Maintain structural and biological legacies that accelerate old-forest habitat recovery

Answer

Legacy trees provide immediate habitat structures (cavities, large limbs, bark fissures) and serve as long-term recruitment sources for snags and down logs that are critical to biodiversity.

Question 5

Which international agreement specifically addresses the sustainable management and conservation of all types of forests and was adopted at the Rio Earth Summit in 1992?

Accepted Answer

Forest Principles (Non-Legally Binding Authoritative Statement of Principles)

Answer

The Forest Principles adopted at UNCED (Rio, 1992) were the first global consensus document on forests, establishing principles for sustainable management of all forest types.

(SAF) Society of American Foresters Certification Practice Test

(SAF) Society of American Foresters Certification Practice Test

SAF Conservation & Sustainability 5