Name: Taper Equation and Volume Tables for Plantation-Grown Red Alder (en Inglés)
Price: 24.28 USD
Availability: InStock
Author: United States Department of Agriculture
ISBN: 9781508502289

portada Taper Equation and Volume Tables for Plantation-Grown Red Alder (en Inglés)

Formato

Libro Físico

Editorial

Createspace Independent Publishing Platform

Autor

United States Department of Agriculture

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

28.0 x 21.6 x 0.4 cm

Peso

0.21 kg.

ISBN13

9781508502289

Categorías

Bibliografias

Taper Equation and Volume Tables for Plantation-Grown Red Alder (en Inglés)

United States Department Of Agriculture (Autor) · Createspace Independent Publishing Platform · Tapa Blanda

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Origen: Estados Unidos (Costos de importación incluídos en el precio)

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Reseña del libro "Taper Equation and Volume Tables for Plantation-Grown Red Alder (en Inglés)"

A taper equation and associated tables are presented for red alder (Alnus rubra Bong.) trees grown in plantations. The data were gathered from variable-density experimental plantations throughout the Pacific Northwest. Diameter inside bark along the stem was fitted to a variable exponent model form by using generalized nonlinear least squares and a first-order continuous autoregressive process. A number of parameterizations of the exponent were examined in a preliminary analysis, and the most appropriate form was determined. This was achieved by examining alternative models across geographic locations and silvicultural treatments on the basis of their ability to behave well outside the range of the modeling data by using an independent evaluation data set from across the region and a model validation procedure. Incorporating three easily measured tree variables-diameter at breast height, total tree height, and crown ratio-provided the best fit among location and treatment. This taper equation can be used to estimate diameter inside bark anywhere along the stem, inside bark volume of the entire stem to any top height diameter, and merchantable height and volume between any two points along the stem (i.e., individual log volumes). The flexibility of the model allows for accurate volume predictions across a range of operational stand conditions and management activities and is therefore an improvement over previously published red alder volume and taper equations.