Tree Measurement Formulas Quiz
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Questions and Answers

What is the artificial form factor for a tree with a diameter at breast height (dbh) of 45.6 cm and a height of 27 m?

  • 0.1
  • 0.4
  • 0.3
  • 0.2 (correct)
  • In absolute form factor calculations, what is used as the reference for the base of the cylinder?

  • Breast height (correct)
  • 10% of tree height
  • 20% of tree height
  • Base of the tree
  • How are the Diameter over bark (dob), diameter under bark (dub), and bark thickness (tb) related?

  • dob = dub - 2 × tb
  • dob = dub + 2 × tb (correct)
  • dob = dub - tb
  • dob = dub + tb
  • For a non-circular cross-section, what does girth tape do in relation to sectional area estimation?

    <p>Over-estimates the sectional area</p> Signup and view all the answers

    What is the basal area in square meters for a tree with a diameter at breast height (dbh) of 25 cm?

    <p>.149</p> Signup and view all the answers

    Which term describes how close measured values are to the correct value?

    <p>Accuracy</p> Signup and view all the answers

    Which of the following is an example of chemical weathering?

    <p>Thermal stresses</p> Signup and view all the answers

    In forest management, what does the normal form factor reference for the base of the cylinder?

    <p>Base of the tree</p> Signup and view all the answers

    What is the angle between the base and hypotenuse in a triangle if θ = 60° and the hypotenuse c = 2 cm?

    <p>0.33</p> Signup and view all the answers

    A sample plot measures 15 m × 15 m with 3 trees having dbh of 25 cm, 30 cm, 35 cm. What is the stand basal area in sq m per Ha?

    <p>14.6</p> Signup and view all the answers

    What is the spacing factor for eucalyptus trees that are on average 30 cm in diameter and spaced on a regular 3 m grid?

    <p>20</p> Signup and view all the answers

    Which type of soil typically has the highest organic matter content?

    <p>Peaty soil</p> Signup and view all the answers

    What is the term used for the process of cutting timber into logs?

    <p>Bucking</p> Signup and view all the answers

    Which marking color is typically used to show trees that are to be retained?

    <p>Yellow</p> Signup and view all the answers

    In forest management, what process involves the careful selection of trees for harvesting based on a forest management prescription?

    <p>Cruising</p> Signup and view all the answers

    Which type of face cut provides the greatest accuracy in logging operations?

    <p>All of these</p> Signup and view all the answers

    What is the term for the process of moving logs from the forest to the landing area?

    <p>Skidding</p> Signup and view all the answers

    Which calculation gives the net growth in initial volume for tree measurement?

    <p>$V2-V1$</p> Signup and view all the answers

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