Question:
The usable volume of rough timber from average tree is ______________
The usable volume of rough timber from average tree is ______________
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Roughly half a tree becomes high-value timber; the rest becomes fuel, waste, or is left in the forest to decompose.
Updated On: Aug 20, 2026
- 10-15%
- 20-25%
- 37-52%
- 41-60%
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Question:
The question asks for the approximate percentage of a tree's total biomass (volume) that is recovered as usable timber (logs) during harvesting.
Step 2: Detailed Explanation:
• Utilization Percentages: When a tree is felled, not everything is usable as "rough timber." Large volumes are lost in branches, leaves, roots, the stump, and the tapering tip.
• The Figures: For an average commercial tree, the "main bole" (the straight trunk) usually accounts for about 50% to 65% of the total above-ground volume. Once the bark and unusable top are removed, the usable "rough timber" or "saw-logs" typically fall in the range of 41-60%.
• Wastage: The remaining volume consists of fuelwood (branches), bark, and sawdust during conversion. Better quality trees in plantations may have higher recovery rates, while old, branched trees in natural forests have lower ones.
Step 3: Final Answer:
The usable volume from an average tree is approximately 41-60%.
The question asks for the approximate percentage of a tree's total biomass (volume) that is recovered as usable timber (logs) during harvesting.
Step 2: Detailed Explanation:
• Utilization Percentages: When a tree is felled, not everything is usable as "rough timber." Large volumes are lost in branches, leaves, roots, the stump, and the tapering tip.
• The Figures: For an average commercial tree, the "main bole" (the straight trunk) usually accounts for about 50% to 65% of the total above-ground volume. Once the bark and unusable top are removed, the usable "rough timber" or "saw-logs" typically fall in the range of 41-60%.
• Wastage: The remaining volume consists of fuelwood (branches), bark, and sawdust during conversion. Better quality trees in plantations may have higher recovery rates, while old, branched trees in natural forests have lower ones.
Step 3: Final Answer:
The usable volume from an average tree is approximately 41-60%.
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