Height-based single tree
Киргизүү
DBH 35 cm / height 18 m / жыгачтын тыгыздыгы 0.62 g/cm3 / height-based preset
Чыгуу
AGB ≈ 732.08 kg, көмүртек ≈ 344.08 kg C, CO2e ≈ 1,261.61 kg
Field баалоо / токойry
Токой биомассасын жана көмүртегин баалоочу
DBH, дарактын бийиктиги, жыгач тыгыздыгы жана түр тобу боюнча жер үстүндөгү биомассаны, көмүртекти жана CO2eни браузерде гана иштеген иш агымында баалаңыз.
Start from built-in шилтеме теңдемелер, сактоо your own coefficient sets, and fall back to DBH-only баалооs when field data are incomplete.
Built-in equations plus one custom preset you can сактоо
Switch to DBH + density or DBH-only fallback when height is missing
Optional BGB with root/shoot ratio defaults
Share by URL and export JSON or CSV
Reference values only. Not for formal көмүртек reporting.
How to use
- Choose the баалоо mode, түр тобу, and a preset, then confirm whether the built-in values match your жергиликтүү workflow.
- Enter DBH first, then add дарактын бийиктиги and жыгачтын тыгыздыгы when the selected mode needs them.
- Turn on root биомасса if you want BGB, and switch the көмүртек fraction between preset, species-specific, or custom values as needed.
- Review the result, then copy it, бөлүшүү the URL, or export JSON and CSV for later reuse.
Мисалдар
DBH + density fallback
Киргизүү
DBH 35 cm / жыгачтын тыгыздыгы 0.62 g/cm3 / DBH + density preset
Чыгуу
AGB ≈ 228.71 kg, көмүртек ≈ 107.49 kg C, CO2e ≈ 394.14 kg
Plot sample
Киргизүү
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
Чыгуу
Total AGB ≈ 992.62 kg, көмүртек ≈ 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 биомасса × көмүртек fraction
- CO2e = көмүртек × 44 / 12
Терминдер сөздүгү
DBH
Diameter at breast height, өлчөөd at breast height or your жергиликтүү standard.
AGB
Above-ground биомасса. This page reports it as the main биомасса result.
BGB
Below-ground биомасса. It is optional and uses a root/shoot ratio when enabled.
Wood density
Basic жыгачтын тыгыздыгы or specific gravity used to tune the model.
Carbon fraction
The бөлүшүү of биомасса assumed to be көмүртек. The default in this tool is 0.47.
Root/shoot ratio
A multiplier used to баалоо BGB from AGB when root биомасса is turned on.
CO2e
Carbon dioxide equivalent. Carbon is multiplied by 44/12 to convert to CO2e.
Көп берилүүчү суроолор
Can I use this for formal көмүртек reporting?
No. This page is designed for field баалооs and quick planning, not for certified reporting or audit work.
What if дарактын бийиктиги is missing?
Switch to the DBH + density or DBH-only preset. The page сактооs the calculation moving when height is not available.
Can I type decimal commas?
Yes. The page accepts both decimal commas and decimal points, along with simple unit suffixes.
Can I сактоо my own coefficients?
Yes. Сактоо a custom preset in this браузер, then export it as JSON if you want a portable copy.
Does the page send my data to a server?
No. Киргизүүs, presets, and results stay in the браузер unless you explicitly copy or бөлүшүү them.
Импортant notes
- Built-in equations are reference values only. Replace them with approved жергиликтүү coefficients when you have them.
- Wood density, көмүртек fraction, and root/shoot ratio can vary by species, site, and data source.
- Root биомасса 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 бөлүшүү URLs if they should not be public.