Tables and equations for estimating volumes of trees in the Susitna River Basin, Alaska.

Larson, Frederic R.; Winterberger, Kenneth C.

doi:10.2737/pnw-rn-478

Cited by 4 publications

(8 citation statements)

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“…Estimates for volume of white spruce in Alaska have been developed (Gregory and Haack [19], Larson and Winterberger [20]). Neither of these publications, however, offers models that are widely accepted to estimate the volume of white spruce in Alaska, because of their limited geographic sample coverage, and lack of control for bark thickness.…”

Section: Discussionmentioning

confidence: 99%

A Bark Thickness Model for White Spruce in Alaska Northern Forests

Malone

Liang

2009

International Journal of Forestry Research

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Here we developed a simple linear model to estimate white spruce bark thickness in the northern forests of Alaska. Data were collected from six areas throughout interior and southcentral Alaska. Geographic variation of bark thickness was tested between the Alaska statewide model and for each geographic area. The results show that the Alaska statewide model is accurate, simple, and robust, and has no practical geographic variation over the six areas. The model provides accurate estimates of the bark thickness for white spruce trees in Alaska for a wide array of future studies, and it is in demand by landowners and forest managers to support their management decisions.

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Section: Discussionmentioning

confidence: 99%

A Bark Thickness Model for White Spruce in Alaska Northern Forests

Malone

Liang

2009

International Journal of Forestry Research

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“…Figure 3 was developed to test the accuracy of the four white spruce volume models with an independent set of postsample data. Three of the models, Haack (1963), Beagle (1979), and Larson and Winterberger (1988, were published previously and the fourth is the Alaska statewide model (this article). The Alaska statewide merchantable volume model was obviously more accurate than the three other volume models that overestimated the merchantable volume of trees of all sizes.…”

Section: Resultsmentioning

confidence: 99%

“…Predictions of the merchantable volume model to a 4-in. top were compared against observed values and predictions of three other white spruce volume models used in Alaska (Haack 1963, Beagle 1979, Larson and Winterberger 1988. The 201 validation samples were used to test the hypothesis that a statewide volume model could be accurate for applications across the region and within the six DOF areas.…”

Section: Model Estimation and Validationmentioning

confidence: 99%

“…Existing white spruce volume models in Alaska are of limited applicability because of small sample size or limited sample geographic coverage. The published cubic-foot volume models of Gregory and Haack (1964) were developed with 434 sample trees mostly from interior Alaska, and that of Larson and Winterberger (1988) was developed from 244 white spruce and 43 black spruce trees harvested from the Matanuska and Susitna Valleys. In addition, numerous unpublished volume models based on data sets from small and scattered geographic areas exist.…”

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confidence: 99%

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Total and Merchantable Volume of White Spruce in Alaska

Malone¹,

Liang²,

Packee³

2013

Western Journal of Applied Forestry

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“…); Singh (1984) for tamarack (Larix laricina (Du Roi) K. Koch); Alemdag (1984) for Alaska birch (Betula neoalaskana Sarg. ); and Standish (1983) Larson and Winterberger (1988).…”

Section: Methodsmentioning

confidence: 99%