B.F. Bachelor of Forestry Bachelor of Forestry Forest Production Management 4 — Questions and Answers
Question 1: Which of the following best describes the 'allowable cut' concept in sustained-yield forestry?
- The maximum volume that can be removed in a single cutting entry
- The annual or periodic harvest volume that can be sustained indefinitely without depleting the resource (Correct answer)
- The legal limit set by state law for cutting on private lands
- The volume limit imposed by mill processing capacity
Correct answer: The annual or periodic harvest volume that can be sustained indefinitely without depleting the resource
Allowable cut is calculated to balance growth and harvest over time, ensuring the forest continues to produce timber without long-term depletion.
Question 2: When establishing a timber sale contract, a 'lump sum' sale differs from a 'pay-as-cut' sale in that:
- The purchaser pays a fixed total price upfront regardless of actual volume harvested (Correct answer)
- Payment is made after each truckload is delivered to the mill
- The government sets the price based on market index after harvest
- The landowner retains ownership of all merchantable logs
Correct answer: The purchaser pays a fixed total price upfront regardless of actual volume harvested
In a lump sum sale, the buyer pays a single agreed price for all timber designated in the sale area, assuming all volume and price risk.
Question 3: What is the significance of the 'culmination of mean annual increment (CMAI)' in determining rotation length for timber production?
- CMAI marks the point where diameter growth stops entirely
- CMAI indicates the rotation age that maximizes average annual volume production per acre (Correct answer)
- CMAI identifies the point of maximum merchantable log quality
- CMAI is used only for non-timber forest product optimization
Correct answer: CMAI indicates the rotation age that maximizes average annual volume production per acre
Harvesting at CMAI maximizes the average annual volume yield per unit area over the rotation, making it the biologically efficient rotation for wood production.
Question 4: Which skidder configuration is most commonly used for whole-tree harvesting in southern US pine operations?
- Tower yarder
- Grapple skidder (Correct answer)
- Forwarder
- Mule train
Correct answer: Grapple skidder
Grapple skidders are the standard machine for dragging whole trees from the stump to the landing in the flat to moderately sloped terrain of the US South.
Question 5: Prescribed fire is used as a silvicultural tool in longleaf pine ecosystems primarily to:
- Eliminate all competing hardwood species permanently
- Maintain an open, grassy understory that favors longleaf pine regeneration and reduces fuel loads (Correct answer)
- Stimulate rapid height growth in planted seedlings
- Remove standing dead wood for pulpwood markets
Correct answer: Maintain an open, grassy understory that favors longleaf pine regeneration and reduces fuel loads
Periodic prescribed fire in longleaf pine systems controls hardwood encroachment, maintains wiregrass ground cover, and reduces fire hazard while creating favorable seedbed conditions.
Question 6: A forest manager wants to maximize financial return from a timber stand. Which economic rotation criterion should they apply instead of the biological CMAI?
- Maximum sustainable yield rotation
- Faustmann rotation (land expectation value maximization) (Correct answer)
- Clearcut rotation
- Age-class distribution rotation
Correct answer: Faustmann rotation (land expectation value maximization)
The Faustmann formula determines the rotation that maximizes the net present value of all future timber revenues, accounting for opportunity costs and discount rates.
Question 7: Which of the following is an example of a non-timber forest product (NTFP) that contributes to forest production management income in the US Pacific Northwest?
- Pulpwood chips
- Floral greens such as salal and sword fern (Correct answer)
- Biomass pellets
- Oriented strand board (OSB)
Correct answer: Floral greens such as salal and sword fern
Floral greens like salal, huckleberry, and sword fern harvested from Pacific Northwest forests are sold to the floral industry and represent a significant NTFP market.
B.F. Bachelor of Forestry Bachelor of Forestry Forest Production Management 4
Which of the following best describes the 'allowable cut' concept in sustained-yield forestry?