True/False
Indicate whether the sentence or statement is true or
false.
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1.
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Site Index indicates productive capacity of a specific area of forest
land.
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2.
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Although many tree species may grow on an area, they may not grow equally
well.
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3.
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To the land owner who is considering planting trees, knowing the Site Index for
different tree species on his land can be the difference between profit or loss.
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Multiple Choice
Identify the letter of the choice that best
completes the statement or answers the question.
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4.
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Site Index refers to _____.
a. | site location | c. | site size | b. | site quality | d. | all of these are
correct |
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5.
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Site Index refers to the productive capacity of the location for _____.
a. | a single species | b. | a group of species | c. | both |
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6.
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Site Index is determined on the basis of the average _____ attained by dominant
trees at index ages.
a. | DBH | c. | volume in cubic feet | b. | basal area | d. | height |
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7.
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Site Index age for a species is usually _____ years for tree species of the
eastern United States.
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8.
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Site Index ages are usually ____ years for species in the western United States.
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9.
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Stocking rates, determined by basal area measurements, should be approximately
_____ the Site Index number of the species on that site.
a. | equal to | b. | 1.5 times | c. | double | d. | one
half |
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10.
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If the Site Index is 70, trees should be about _____ feet tall at age 50 years.
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11.
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Site Index is affected by _____.
a. | soil type | c. | average air temperature in the area | b. | average rainfall in
the area | d. | all these are
correct |
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12.
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Trees with a low Site Index grow ____.
a. | slowly | c. | short with small DBH | b. | tall and thin | d. | fast |
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13.
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Trees growing on a low Site Index for their species are referred to _____.
a. | index poor | b. | off-site | c. | index wrong | d. | stagnant |
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14.
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Trees growing on a high site index are more ____ than trees growing on a low
site index.
a. | resistant to insect damage | c. | resistant to
drought | b. | resistant to disease | d. | all of these are correct |
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15.
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To calculate the site index for an area, you need to determine tree ____.
a. | height and DBH | c. | DBH and age | b. | height and age | d. | height only |
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16.
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When choosing trees to be measured for site index, choose trees that
_____.
a. | are growing in heavy shade | b. | are growing in partial
shade | c. | are growing in plenty of sunlight | d. | the degree of shading makes no
difference |
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17.
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Which tool is used in Site Indexing?
a. | diameter tape | c. | bark gauge | b. | wedge prism | d. | increment borer |
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18.
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To determine tree age for Site Indexing, you should ____________.
a. | estimate | c. | measure height then divide by 4 | b. | count the annual
rings | d. | guess |
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19.
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When using Site Index charts, ________ are found on the charts.
a. | age lines | c. | Site Index curves | b. | height lines | d. | all of these are found on the
charts |
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20.
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When thinning, stocking rate is usually reduced by ________ square feet of
basal area below the Site Index.
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