Tree Weight Equation (Cone Approximation):
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The Tree Weight Calculator estimates the mass of a tree using its diameter, height, and wood density. It uses a cone approximation for the tree's volume, which is then multiplied by the wood density to estimate weight.
The calculator uses the cone approximation equation:
Where:
Explanation: The equation approximates the tree as a cone, calculates its volume, then multiplies by wood density to get weight.
Details: Estimating tree weight is important for forestry management, carbon sequestration calculations, timber harvesting, and transportation planning.
Tips: Measure diameter at breast height (1.3m above ground). Typical wood densities range from 300-900 kg/m³ (softwoods are generally less dense than hardwoods).
Q1: How accurate is this estimation?
A: The cone approximation provides a rough estimate. Actual tree shapes vary, so results may differ by ±20% from true weight.
Q2: What are typical wood densities?
A: Pine: ~500 kg/m³, Oak: ~700 kg/m³, Balsa: ~160 kg/m³, Ebony: ~1100 kg/m³.
Q3: Should I use diameter or circumference?
A: This calculator uses diameter. If you have circumference, divide by π (3.1416) to get diameter.
Q4: Does this account for branches and leaves?
A: No, this estimates trunk weight only. For total tree biomass, multiply result by 1.2-1.5 depending on species.
Q5: What about live vs. dry weight?
A: This calculates green weight (live wood). Dry weight is typically 50-70% of green weight.