# Jenkins et al. 2003: National-scale biomass estimators for United States tree species

Jenkins, J.C., Chojnacky, D.C., Heath, L.S., Birdsey, R.A. (2003). National-scale biomass estimators for United States tree species. Forest Science, 49(1), 12–35.

- DOI: https://doi.org/10.1093/forestscience/49.1.12
- Access: open access
- Copy we read: https://research.fs.usda.gov/download/treesearch/6996.pdf
- Status: no retraction or correction notice recorded (Crossref is asked weekly); last checked 2026-11-01
- Page: https://treeallometry.org/sources/jenkins-2003/

## Equations from this source (10)

### US national species group: Aspen/alder/cottonwood/willow (Table 4)

Aboveground biomass for Aspen/alder/cottonwood/willow species group (hardwood), United States. Inputs: DBH. DBH 2.5–70 cm.

As printed (Table 4 footnote, p. 20):

> bm = Exp(β0 + β1 ln dbh)

Page: https://treeallometry.org/equations/jenkins-2003-aspen-alder-cottonwood-willow/

### US national species group: Cedar/larch (Table 4)

Aboveground biomass for Cedar/larch species group (softwood), United States. Inputs: DBH. DBH 2.5–250 cm.

As printed (Table 4 footnote, p. 20):

> bm = Exp(β0 + β1 ln dbh)

Page: https://treeallometry.org/equations/jenkins-2003-cedar-larch/

### US national species group: Douglas-fir (Table 4)

Aboveground biomass for Douglas-fir species group (softwood), United States. Inputs: DBH. DBH 2.5–210 cm.

As printed (Table 4 footnote, p. 20):

> bm = Exp(β0 + β1 ln dbh)

Page: https://treeallometry.org/equations/jenkins-2003-douglas-fir/

### US national species group: Hard maple/oak/hickory/beech (Table 4)

Aboveground biomass for Hard maple/oak/hickory/beech species group (hardwood), United States. Inputs: DBH. DBH 2.5–73 cm.

As printed (Table 4 footnote, p. 20):

> bm = Exp(β0 + β1 ln dbh)

Page: https://treeallometry.org/equations/jenkins-2003-hard-maple-oak-hickory-beech/

### US national species group: Juniper/oak/mesquite (Table 4)

Aboveground biomass for Juniper/oak/mesquite species group (woodland), United States. Inputs: DBH. DBH 2.5–78 cm.

As printed (Table 4 footnote, p. 20):

> bm = Exp(β0 + β1 ln dbh)

Page: https://treeallometry.org/equations/jenkins-2003-juniper-oak-mesquite/

### US national species group: Mixed hardwood (Table 4)

Aboveground biomass for Mixed hardwood species group (hardwood), United States. Inputs: DBH. DBH 2.5–56 cm.

As printed (Table 4 footnote, p. 20):

> bm = Exp(β0 + β1 ln dbh)

Page: https://treeallometry.org/equations/jenkins-2003-mixed-hardwood/

### US national species group: Pine (Table 4)

Aboveground biomass for Pine species group (softwood), United States. Inputs: DBH. DBH 2.5–180 cm.

As printed (Table 4 footnote, p. 20):

> bm = Exp(β0 + β1 ln dbh)

Page: https://treeallometry.org/equations/jenkins-2003-pine/

### US national species group: Soft maple/birch (Table 4)

Aboveground biomass for Soft maple/birch species group (hardwood), United States. Inputs: DBH. DBH 2.5–66 cm.

As printed (Table 4 footnote, p. 20):

> bm = Exp(β0 + β1 ln dbh)

Page: https://treeallometry.org/equations/jenkins-2003-soft-maple-birch/

### US national species group: Spruce (Table 4)

Aboveground biomass for Spruce species group (softwood), United States. Inputs: DBH. DBH 2.5–250 cm.

As printed (Table 4 footnote, p. 20):

> bm = Exp(β0 + β1 ln dbh)

Page: https://treeallometry.org/equations/jenkins-2003-spruce/

### US national species group: True fir/hemlock (Table 4)

Aboveground biomass for True fir/hemlock species group (softwood), United States. Inputs: DBH. DBH 2.5–230 cm.

As printed (Table 4 footnote, p. 20):

> bm = Exp(β0 + β1 ln dbh)

Page: https://treeallometry.org/equations/jenkins-2003-true-fir-hemlock/