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Journal of Forestry Online Quiz
Derived from the May 2014 Journal of Forestry
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The Journal of Forestry Quiz is approved for 4.0 continuing forestry education (CFEs) credit hours in Category 1-CF by the Society of American Foresters. Successful completion of the self-assessment, defined as a cumulative score of at least 70%, is required to earn CFE credit. CFE approval is valid for one year from the issue date of publication, and participants may submit the quiz at any time during that period.

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1. According to Kenefic et al., objectives of rehabilitation silviculture do not include which of the following?

a) Removing the most valuable trees
b) Reducing proportions of noncommercial tree species
c) Accelerating growth of acceptable trees
2. The study area described by Kenefic et al. had been commercially clearcut twice prior to the start of the current study. The greater harvest volume removed in the second cut is attributed to:
a) increased mean annual increment on the residual trees following the first cut.
b) lower merchantability standards at the time of the second cut.
c) higher residual stocking levels following the first cut.

3. Which task took the longest time to implement in the Kenefic et al. study of precommercial rehabilitation treatments?

a) Herbicide application
b) Mechanical release
c) Fill planting

4. In the rehabilitation case study reported by Greene, the first crop tree release left a matrix of untreated area between the crop trees, which will:

a) help buffer crop trees from subsequent logging damage.
b) minimize hurricane damage.
c) interfere with beech regeneration or sprouts.

5. The crop tree release discussed by Greene was accomplished utilizing which of the following options?

a) Contracted mechanical treatment using brush saws
b) Basal bark herbicide application
c) GPMCT members using hand tools
6. According to Bédard et al. when choosing which silvicultural system for rehabilitation the stand must have sufficient acceptable growing stock to sustain a series of entries over the long term, as well as adequate seed trees of the desired species?
a) Expanding-gap or continuous cover irregular shelterwood
b) Single tree selection
c) Group selection

7. Bédard et al. found that which scenario requires the longest period to reach the target diameter distribution?

a) Single tree and group selection (SC18)
b) Continuous cover irregular shelterwood (CCIS14-16)
c) Extended irregular shelterwood (EIS14)
8. Which scenario seems the most suitable to rehabilitate the stands Bédard et al. studied?
a) Single tree and group selection (SC18).
b) Continuous cover irregular shelterwood (CCIS14-16)
c) Extended irregular shelterwood (EIS14)

9. Lussier and Meek suggest that even-aged regeneration systems may be unsatisfactory alternatives for treating previously harvested stands which are not suited for classic selection system silviculture because:

a) applying any single treatment across the entire stand results in areas not properly treated because of high heterogeneity in advance regeneration density and irregular canopy cover.
b) uniform treatments will favor poles and small timber trees that are costly to harvest.
c) producing high volumes of pulpwood reduces the future potential value of the stand.
10. At both study blocks Lussier and Meek found that the largest departure between prescription and the operator's decision occurred when the operator chose to do a partial harvest of mature trees even when:
a) the prescription called for no harvest of mature trees.
b) advance regeneration was sufficient for overstory removal.
c) only good quality mature trees were available for selection.
11. Baker et al. note what as a major difference between the UGA Logging Cost Index (LCI) and the previous logging cost index reported by Stuart and Grace in 2008?
a) The exclusion of hauling costs in the UGA LCI methodology
b) The use of a quarterly index by Stuart and Grace
c) Rapid inflation between 2008 and 2011
12. Which of the following measures is currently incorporated into the calculation of the UGA LGI as described in the article by Baker et al.?
a) Quarterly changes in the productivity of labor and capital
b) Quarterly changes in production
c) Quarterly changes in average wage rate paid to logging contractor employees
13. Based on a survey of 2011 logging cost data performed by Baker et al., what cost component contributed the greatest proportion of the total cut and load cost of logging contractors?
a) Diesel and other petroleum-based consumables
b) Labor
c) Equipment depreciation
14. When evaluating silvicultural prescriptions that thin throughout riparian buffers 50 to 100 ft wide, Teply et al. found which factor influenced stream shade the most according to the stream shade model?
a) Vertical canopy cover
b) Riparian buffer width?
c) Tree height
15. When using a 25-ft stream-adjacent no-harvest buffer strip in conjunction with thinning in the outer riparian buffer, what is the maximum amount of shade loss that could occur according to the Teply et al. stream shade model?
a) 50%
b) 25%
c) 10%
16.The Idaho Forest Practices Act Advisory Committee (FPAAC) used a "genetic algorithm" as a transparent means to review simulation results and recommend a prescription for rulemaking. What is a "genetic algorithm"?
a) A riparian input simulation model
b) A consensus-based decisionmaking model
c) A heuristic optimization technique