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Western Journal of Applied Forestry Online Quiz
Derived from the January 2013 Western Journal of Applied Forestry
Cost: $25 members      $35 nonmembers
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The Western Journal of Applied Forestry Quiz is approved for 3.5 continuing forestry education (CFE) 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. In the Aerial Detection Survey method described by Backsen and Howell, determining the correct location on the map using visual cues suchas drainages, roads, or other landmarks can be challenging, particularly in areas of:
a) relatively uniform forest cover and variable topography.
b) relatively uniform forest cover and uniform topography.
c) relatively variable forest cover and uniform topography.
2. According to Backsen and Howell, the study site for the survey method comparison may have been more favorable to the Photo Interpretation Survey method than could be expected in other areas due to what characteristics?
a) A relatively homogeneous forest type that is mainly being impacted by one easily recognizable damage signature
b) A relatively homogeneous forest type that is being impacted by more than one easily recognizable damage signature
c) A relatively heterogeneous forest type that is mainly being impacted by one easily recognizable damage signature on a single tree species.


3. What attributes make LAI desirable as a stocking index, as described by Ex and Smith?
a) It is easier to measure than SDI, is ecologically meaningful, and can be used to estimate growth efficiency.
b) It can be used to estimate growth efficiency, is easier to measure than SDI, and reaches a species-specific maximum that is an index of site quality.
c) It is ecologically meaningful, can be used to estimate growth efficiency, and reaches a species-specific maximum that is an index of site quality.
4. Ex and Smith contend earlier work was incorrect in concluding SDI offered a biased estimate of LAI in uneven-aged stands. What do they suggest as a likely source of the bias detected in earlier work?
a) Inadequate sample of large trees
b) Inappropriate estimation of leaf area as a linear function of breast height sapwood area
c) Use of total tree biomass instead of dbh for calculation of SDI


5. The results from the Surfleet and Skaugset study indicate that recession curve analysis can be an effective tool for estimating summer low flows from ungauged streams. Fitting master recession curves to small watersheds nested within the area for which the curves are developed:
a) requires only a few independent instantaneous streamflow measurements from the nested watersheds.
b) does not require independent instantaneous streamflow measurements from the nested watersheds.
c) is improved by having many independent instantaneous streamflow measurements from the nested watersheds.


6. According to Sessions et al., the value of a 48-foot trailer load of biomass paid as a function of moisture content based on a target feedstock cost of $40 per MW-hr decreases approximately 16% if the moisture content increases by:
a) 100%..
b) 50%.
c) 16%.
7. Giant sequoia growth responded uniquely to growing space (i.e. planting density) in what way?
a) Height but not dbh growth increased linearly with growing space.
b) Both height and dbh growth increased, but with diminishing returns as growing space reached the higher extreme.
c) Dbh, but not height growth increased linearly with growing space.


8. What is the primary advantage to understanding the response of giant sequoia to density management as discussed by York et al.?
a) By having the right density, managers can avoid density-related mortality.
b) The taper of giant sequoia can be reduced dramatically when the density is managed wisely.
c) Giant sequoia can be grown under a wide range of densities, depending on objectives.
9. Meaningful and significant improvements in shade prediction only occurred when applying the canopy-explicit approach to which stand structural class in the Teply and McGreer study?
a) Understory reinitiation
b) Young forest multi-story
c) Old forest single-story


10. The key output of interest to Teply and McGreer in their use of shade prediction models is effective shade which is definedasthe fraction of potential solar radiation that:
a) is blocked by the shade overlap of multiple canopy levels.
b) is blocked by the shade cast over the portion of the stream that is shaded by trees on either side of the stream.
c) enters the stream water.