Tree Allometrics

Species / Fagaceae

Quercus macrocarpa

28 equations apply to this species, 4 fitted on it directly. Each output lists them most specific first: fitted on this species, then on a variety of it, then pooled fits that included it, then its genus and its family. Within each step, equations the authors advised against go last, then those read from compilations; more trees come first.

Wood density 0.64 g/cm³, estimated from 13 samples in 4 studies by the Global Wood Density Database v.2 (Fischer et al. 2026, CC BY 4.0).

Photo of Quercus macrocarpa
© Terry Woodward · CC BY · iNaturalist

Aboveground biomass

  1. Fitted on this species · 9 trees · DBH 5.84–25.4 cm · Read from the original paper

  2. 2Pooled, includes itChojnacky et al. 2014

    Pooled fit on 12 named species and others, this one included · Number of trees not stated · DBH 3–89 cm · Read from the original paper

  3. Fitted on 6 other Quercus species, not this one · 165 trees across all species · DBH 4.8–48.6 cm · Read from the original paper

  4. 4Same genusMeng et al. 2021

    Fitted on 2 other Quercus species, not this one · 159 trees across all species · DBH 1.5–33 cm · Read from the original paper

  5. 5Same genusDu et al. 2026

    Fitted on the genus Quercus · 157 trees across all species · DBH 3.5–38.9 cm · Read from the original paper

  6. Fitted on the genus Quercus · Number of trees not stated · Read from the original paper

Total biomass

  1. 1Same genusDu et al. 2026

    Fitted on the genus Quercus · 157 trees across all species · DBH 3.5–38.9 cm · Read from the original paper

Stem biomass

  1. Fitted on 6 other Quercus species, not this one · 165 trees across all species · DBH 4.8–48.6 cm · Read from the original paper

Branch biomass

  1. Fitted on this species · 9 trees · DBH 5.84–25.4 cm · Read from the original paper

  2. Fitted on 6 other Quercus species, not this one · 165 trees across all species · DBH 4.8–48.6 cm · Read from the original paper

  3. 3Same genusMeng et al. 2021

    Fitted on 2 other Quercus species, not this one · 159 trees across all species · DBH 1.5–33 cm · Read from the original paper

  4. Fitted on the genus Quercus · Number of trees not stated · Read from the original paper

Foliage biomass

  1. Fitted on this species · 9 trees · DBH 5.84–25.4 cm · Read from the original paper

  2. Fitted on 6 other Quercus species, not this one · 165 trees across all species · DBH 4.8–48.6 cm · Read from the original paper

  3. 3Same genusMeng et al. 2021

    Fitted on 2 other Quercus species, not this one · 159 trees across all species · DBH 1.5–33 cm · Read from the original paper

  4. Fitted on the genus Quercus · 22 trees across all species · DBH 2.54–28.7 cm · Read from the original paper

  5. Fitted on the genus Quercus · Number of trees not stated · Read from the original paper

Root biomass

  1. 1Same genusMeng et al. 2021

    Fitted on 2 other Quercus species, not this one · 53 trees across all species · DBH 1.5–32.8 cm · Read from the original paper

  2. 2Same genusDu et al. 2026

    Fitted on the genus Quercus · 50 trees across all species · Read from the original paper

    • Oak root biomass (compatible total-biomass system)DBH + HeightChina50 trees

      Not fully checked: Our November 2026 recheck couldn't get a readable copy of this paper, so the equation rests on a single reading. Compare it with the paper before relying on it.

  3. Fitted on 2 other Quercus species, not this one · 39 trees across all species · DBH 7.4–42 cm · Read from the original paper

Stem volume

  1. Fitted on this species · 105 trees · DBH 5.84–74.68 cm · Read from the original paper

  2. Fitted on the genus Quercus · 651 trees across all species · DBH 2.54–44.2 cm · Read from the original paper