Tree Allometrics

Species / Fagaceae

Quercus humboldtii

23 equations apply to this species, 1 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.

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Aboveground biomass

  1. Fitted on this species · 20 trees · DBH 4.75–24.9 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. 4Same 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

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

  6. Fitted on the family Fagaceae · Number of trees not stated · DBH 3–89 cm · 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 6 other Quercus species, not this one · 165 trees across all species · DBH 4.8–48.6 cm · Read from the original paper

  2. 2Same 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

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

Foliage 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

  2. 2Same 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

  3. 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

  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

General equations that may apply (18)

Fitted on many species across the tropics or the world, so not ranked against the ones above. Pantropical ones show only when this species's own fits come from the tropics, for the same tree type. Check that your trees fall inside each one's range before using it.