Question:
Metzger or Girder theory explains the following concept
Metzger or Girder theory explains the following concept
Show Hint
Metzger's theory treats the tree stem as a "girder" or cantilever beam resisting wind stress. This structural engineering concept directly explains why trees are tapered.
Updated On: Jul 21, 2026
- Variations in taper of tree
- Variations in height of tree
- Variations in volume of tree
- Variations in basal area of tree
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Stem taper refers to the rate of decrease in stem diameter from the base of the tree to its tip.
Understanding taper is critical for predicting timber volume, log assortment yields, and the mechanical stability of standing trees.
Step 2: Detailed Explanation:
Karl Metzger proposed the Mechanical Theory of Tree Taper (also known as the Metzger's Girder Theory) in 18
The core ideas of this theory are:
- A tree stem behaves mechanically as a cantilever beam of uniform resistance to bending stresses caused by wind forces.
- Wind pressure exerts a bending moment on the stem that increases progressively from the top of the tree down to its base.
- To withstand this bending stress without breaking, the tree allocates cell growth to increase its cross-sectional area downward.
- This mechanical adaptation results in a tapering stem, where the diameter is smallest at the tip and largest at the base.
- Metzger's theory explains how wind forces and canopy size determine the specific taper and form of a tree stem.
Therefore, the Metzger or Girder theory directly explains the variations in tree taper.
Step 3: Final Answer:
Metzger or Girder theory explains the variations in taper of a tree.
Stem taper refers to the rate of decrease in stem diameter from the base of the tree to its tip.
Understanding taper is critical for predicting timber volume, log assortment yields, and the mechanical stability of standing trees.
Step 2: Detailed Explanation:
Karl Metzger proposed the Mechanical Theory of Tree Taper (also known as the Metzger's Girder Theory) in 18
The core ideas of this theory are:
- A tree stem behaves mechanically as a cantilever beam of uniform resistance to bending stresses caused by wind forces.
- Wind pressure exerts a bending moment on the stem that increases progressively from the top of the tree down to its base.
- To withstand this bending stress without breaking, the tree allocates cell growth to increase its cross-sectional area downward.
- This mechanical adaptation results in a tapering stem, where the diameter is smallest at the tip and largest at the base.
- Metzger's theory explains how wind forces and canopy size determine the specific taper and form of a tree stem.
Therefore, the Metzger or Girder theory directly explains the variations in tree taper.
Step 3: Final Answer:
Metzger or Girder theory explains the variations in taper of a tree.
Was this answer helpful?
0
0
Top ICAR AIEEA Forestry Agroforestry Silviculture Questions
- Read the following statements of silvicultural system followed in tree species and choose the correct answer from the following options:
Statement (I): Anogeissus latifolia is worked only as a component species of mixed forests as coppice-with-standards.
Statement (II): Terminalia arjuna tree is not a regular component of forest stand and is usually worked under selection and coppice with standards.
Choose the correct answer from the options given below: - The most important single factor affecting natural regeneration of Shorea robusta is the time lag between the falling of seed and the commencement of the ________.
- Read the following statements and choose the correct answer about silvicultural system/s adopted for the management of Shorea robusta:
Statement (I): Under clear felling system, a rotation age is fixed and the entire area clear felled and the crop is of uniform age.
Statement (II): Selection system is adopted for areas which are badly eroded and where regeneration is problem and regeneration is obtained by natural means, which may be supplemented by planting.
Statement (III): In coppice with standards system, a few standards are retained and the other trees above the exploitable diameter are clear felled and regeneration is obtained by means of coppice.
Choose the correct answer from the options given below: - Which of the following type of soil is the best for plant growth?
- A biosphere reserve conserves and preserves the following variety of life and choose the correct option of variety of life:
(A). Wild animals
(B). Wild land
(C). Natural vegetation
Choose the correct answer from the options given below:
View More Questions
Top ICAR AIEEA Wood Science Questions
- Terminalia elliptica can be easily identified based on ________ character.
- Ring porous wood is found in ________.
- Which one of the following species is called Bad Fuel Woods?
- Wood of ________ is known as very elastic woods.
- Conduction in hard woods is performed by ________.
View More Questions
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?
View More Questions