# Poudel et al. 2019: Estimating individual-tree aboveground biomass of tree species in the western U.S.A.

Poudel, K. P., Temesgen, H., Radtke, P. J., & Gray, A. N. (2019). Estimating individual-tree aboveground biomass of tree species in the western U.S.A. Canadian Journal of Forest Research, 49(6), 701-714.

- DOI: https://doi.org/10.1139/cjfr-2018-0361
- Access: open access
- Copy we read: https://vtechworks.lib.vt.edu/bitstreams/13666b54-8fb3-444c-8f8f-f54bc602a4b9/download
- Status: no retraction or correction notice recorded (Crossref is asked weekly); last checked 2026-11-02
- Page: https://treeallometry.org/sources/poudel-2019/

## Equations from this source (23)

### Black cottonwood total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Populus trichocarpa, United States. Inputs: DBH + Height. DBH 7.4–30.6 cm. 19 trees.

As printed (Table 4, species row and table note):

> Black cottonwood  a, b, c, d, CF: −3.8009  1.63  1.3354  CF 1.0000; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-populus-trichocarpa/

### Black spruce total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Picea mariana, United States. Inputs: DBH + Height. DBH 3.5–38.4 cm. 67 trees.

As printed (Table 4, species row and table note):

> Black spruce  a, b, c, d, CF: −2.6988  1.9463  0.6183  CF 1.0000; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-picea-mariana/

### Douglas-fir total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Pseudotsuga menziesii, United States. Inputs: DBH + Height. DBH 1.8–114 cm. 424 trees.

As printed (Table 4, species row and table note):

> Douglas-fir  a, b, c, d, CF: −2.8246  1.6385  1.0474  CF 1.0000; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-pseudotsuga-menziesii/

### Engelmann spruce total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Picea engelmannii, United States. Inputs: DBH + Height. DBH 0.7–57.6 cm. 74 trees.

As printed (Table 4, species row and table note):

> Engelmann spruce  a, b, c, d, CF: −2.6483  1.4762  1.1357  CF 1.0000; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-picea-engelmannii/

### Giant sequoia total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Sequoiadendron giganteum, United States. Inputs: DBH + Height. DBH 15.9–850.7 cm. 43 trees.

As printed (Table 4, species row and table note):

> Giant sequoia  a, b, c, d, CF: −3.8735  2.1251  0.601  CF 1.0356; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-sequoiadendron-giganteum/

### Grand fir total aboveground biomass from DBH (Table 4)

Aboveground biomass for Abies grandis, United States. Inputs: DBH. DBH 12.4–84.3 cm. 17 trees.

As printed (Table 4, species row and table note):

> Grand fir  a, b, c, d, CF: −2.2106  2.4297  CF 1.0000; model form exp(a + bX1)

Page: https://treeallometry.org/equations/poudel-2019-abies-grandis/

### Jeffrey pine total aboveground biomass from DBH (Table 4)

Aboveground biomass for Pinus jeffreyi, United States. Inputs: DBH. DBH 14.5–43.4 cm. 9 trees.

As printed (Table 4, species row and table note):

> Jeffrey pine  a, b, c, d, CF: −3.1894  3.2244  CF 1.0258; model form exp(a + bX1)

Page: https://treeallometry.org/equations/poudel-2019-pinus-jeffreyi/

### Lodgepole pine total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Pinus contorta, United States. Inputs: DBH + Height. DBH 0.9–60 cm. 218 trees.

As printed (Table 4, species row and table note):

> Lodgepole pine  a, b, c, d, CF: −1.8641  1.801  0.5617  CF 1.0000; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-pinus-contorta/

### Mountain hemlock total aboveground biomass from DBH (Table 4)

Aboveground biomass for Tsuga mertensiana, United States. Inputs: DBH. DBH 13.5–76.2 cm. 9 trees.

As printed (Table 4, species row and table note):

> Mountain hemlock  a, b, c, d, CF: −0.9861  2.0975  CF 1.0000; model form exp(a + bX1)

Page: https://treeallometry.org/equations/poudel-2019-tsuga-mertensiana/

### Pacific silver fir total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Abies amabilis, United States. Inputs: DBH + Height. DBH 4.5–90.4 cm. 37 trees.

As printed (Table 4, species row and table note):

> Pacific silver fir  a, b, c, d, CF: −2.7231  1.8546  0.7567  CF 1.0000; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-abies-amabilis/

### Paper birch total aboveground biomass from DBH (Table 4)

Aboveground biomass for Betula papyrifera, United States. Inputs: DBH. DBH 4.7–30.6 cm. 23 trees.

As printed (Table 4, species row and table note):

> Paper birch  a, b, c, d, CF: −2.5782  2.5299  CF 1.0179; model form exp(a + bX1)

Page: https://treeallometry.org/equations/poudel-2019-betula-papyrifera/

### Ponderosa pine total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Pinus ponderosa, United States. Inputs: DBH + Height. DBH 0.8–63 cm. 158 trees.

As printed (Table 4, species row and table note):

> Ponderosa pine  a, b, c, d, CF: −0.6616  0.8288  0.2127  0.4145  CF 1.0246; model form exp(a + bX1 + cX1² + dX2)

Page: https://treeallometry.org/equations/poudel-2019-pinus-ponderosa/

### Quaking aspen total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Populus tremuloides, United States. Inputs: DBH + Height. DBH 6–34.8 cm. 26 trees.

As printed (Table 4, species row and table note):

> Quaking aspen  a, b, c, d, CF: −3.0439  2.0345  0.642  CF 1.0000; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-populus-tremuloides/

### Red alder total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Alnus rubra, United States. Inputs: DBH + Height. DBH 9.3–51.8 cm. 25 trees.

As printed (Table 4, species row and table note):

> Red alder  a, b, c, d, CF: −3.8516  2.3174  0.6283  CF 1.0281; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-alnus-rubra/

### Redwood total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Sequoia sempervirens, United States. Inputs: DBH + Height. DBH 8.3–681 cm. 141 trees.

As printed (Table 4, species row and table note):

> Redwood  a, b, c, d, CF: −3.0491  1.9407  0.6876  CF 1.0205; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-sequoia-sempervirens/

### Singleleaf pinyon total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Pinus monophylla, United States. Inputs: DBH + Height. DBH 0.4–115.6 cm. 75 trees.

As printed (Table 4, species row and table note):

> Singleleaf pinyon  a, b, c, d, CF: −0.5048  1.4016  0.8522  CF 1.0000; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-pinus-monophylla/

### Sitka spruce total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Picea sitchensis, United States. Inputs: DBH + Height. DBH 7.2–47.8 cm. 19 trees.

As printed (Table 4, species row and table note):

> Sitka spruce  a, b, c, d, CF: −2.5826  1.8196  0.7108  CF 1.0091; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-picea-sitchensis/

### Subalpine fir total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Abies lasiocarpa, United States. Inputs: DBH + Height. DBH 3.5–44.4 cm. 98 trees.

As printed (Table 4, species row and table note):

> Subalpine fir  a, b, c, d, CF: −5.5175  2.6795  1.2805  −0.0759  CF 1.0000; model form exp(a + bX1 + cX2 + dX3)

Page: https://treeallometry.org/equations/poudel-2019-abies-lasiocarpa/

### Utah juniper total aboveground biomass from DBH (Table 4)

Aboveground biomass for Juniperus osteosperma, United States. Inputs: DBH. DBH 4.1–50.5 cm. 33 trees.

As printed (Table 4, species row and table note):

> Utah juniper  a, b, c, d, CF: −0.7457  1.8999  CF 1.0000; model form exp(a + bX1)

Page: https://treeallometry.org/equations/poudel-2019-juniperus-osteosperma/

### Western hemlock total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Tsuga heterophylla, United States. Inputs: DBH + Height. DBH 3.1–77.8 cm. 115 trees.

As printed (Table 4, species row and table note):

> Western hemlock  a, b, c, d, CF: −2.7552  1.8521  0.7642  CF 1.0209; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-tsuga-heterophylla/

### Western redcedar total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Thuja plicata, United States. Inputs: DBH + Height. DBH 3.8–54.2 cm. 50 trees.

As printed (Table 4, species row and table note):

> Western redcedar  a, b, c, d, CF: −2.5443  1.5701  0.9162  CF 1.0151; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-thuja-plicata/

### White fir total aboveground biomass from DBH (Table 4)

Aboveground biomass for Abies concolor, United States. Inputs: DBH. DBH 28.4–66.5 cm. 10 trees.

As printed (Table 4, species row and table note):

> White fir  a, b, c, d, CF: −1.5759  2.2315  CF 1.0089; model form exp(a + bX1)

Page: https://treeallometry.org/equations/poudel-2019-abies-concolor/

### White spruce total aboveground biomass from DBH and height (Table 4)

Aboveground biomass for Picea glauca, United States. Inputs: DBH + Height. DBH 3.6–57.6 cm. 108 trees.

As printed (Table 4, species row and table note):

> White spruce  a, b, c, d, CF: −1.9682  1.9401  0.421  CF 1.0000; model form exp(a + bX1 + cX2)

Page: https://treeallometry.org/equations/poudel-2019-picea-glauca/