Field tahmin / ormancılık

Forest Biomass and Carbon Tahminleyici

Tahmin above-ground biomass, carbon, and CO2e from DBH, tree height, wood density, and species group in a yalnızca tarayıcı iş akışı.

Start from built-in reference equations, save your own coefficient sets, and fall back to DBH-only tahmins when field data are incomplete.

Built-in equations plus one custom preset you can save
Switch to DBH + density or DBH-only fallback when height is missing
Optional BGB with root/shoot ratio defaults
Paylaşım by URL and export JSON or CSV
Reference values only. Not for formal carbon reporting.

How to use

  1. Choose the tahmin mode, species group, and a preset, then confirm whether the built-in values match your local iş akışı.
  2. Enter DBH first, then add tree height and wood density when the selected mode needs them.
  3. Turn on root biomass if you want BGB, and switch the carbon fraction between preset, species-specific, or custom values as needed.
  4. Review the result, then copy it, paylaşım the URL, or export JSON and CSV for later reuse.

Examples

Height-based single tree
Girdi
DBH 35 cm / height 18 m / wood density 0.62 g/cm3 / height-based preset
Çıktı
AGB ≈ 732.08 kg, carbon ≈ 344.08 kg C, CO2e ≈ 1,261.61 kg
DBH + density fallback
Girdi
DBH 35 cm / wood density 0.62 g/cm3 / DBH + density preset
Çıktı
AGB ≈ 228.71 kg, carbon ≈ 107.49 kg C, CO2e ≈ 394.14 kg
Plot sample
Girdi
Three trees: 24 cm / 14 m / 0.58, 26 cm / 15 m / 0.59, 28 cm / 16 m / 0.60, plot area 0.05 ha
Çıktı
Total AGB ≈ 992.62 kg, carbon ≈ 466.53 kg C, CO2e ≈ 1,710.62 kg, or 19.85 t/ha

Formulas

All inputs are normalized to cm, m, g/cm3, kg, and t before the selected equation runs.

  • AGB = a × (rho × D^2 × H)^b
  • AGB = a × rho^c × D^b
  • AGB = a × D^b
  • BGB = AGB × root/shoot ratio
  • Carbon = total biomass × carbon fraction
  • CO2e = carbon × 44 / 12

Glossary

DBH

Diameter at breast height, measured at breast height or your local standart.

AGB

Above-ground biomass. This page reports it as the main biomass result.

BGB

Below-ground biomass. It is optional and uses a root/shoot ratio when enabled.

Wood density

Basic wood density or specific gravity used to tune the model.

Carbon fraction

The paylaşım of biomass assumed to be carbon. The default in this tool is 0.47.

Root/shoot ratio

A multiplier used to tahmin BGB from AGB when root biomass is turned on.

CO2e

Carbon dioxide equivalent. Carbon is multiplied by 44/12 to convert to CO2e.

Frequently asked questions

Can I use this for formal carbon reporting?

No. This page is designed for field tahmins and quick planning, not for certified reporting or denetim work.

What if tree height is missing?

Switch to the DBH + density or DBH-only preset. The page keeps the calculation moving when height is not available.

Can I tür decimal commas?

Yes. The page accepts both decimal commas and decimal puan, along with basit unit suffixes.

Can I save my own coefficients?

Yes. Save a custom preset in this tarayıcı, then export it as JSON if you want a portable copy.

Does the page send my data to a sunucu?

No. Girdis, presets, and sonuçlar stay in the tarayıcı unless you explicitly copy or paylaşım them.

Important notlar

  • Built-in equations are reference values only. Replace them with approved local coefficients when you have them.
  • Wood density, carbon fraction, and root/shoot ratio can vary by species, site, and data source.
  • Root biomass is optional. Leave it off if you only need AGB.
  • Per-hectare values depend on the plot area you enter. The page does not infer stand area for you.
  • Avoid putting private stand names into paylaşım URLs if they should not be public.