Name: True Fir Spacing Trials 10-Year Results (en Inglés)
Price: 84226.00 COP
Availability: InStock
Author: United States Department of Agriculture
ISBN: 9781508756248

portada True Fir Spacing Trials 10-Year Results (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 0.2 cm

Peso

0.12 kg.

ISBN13

9781508756248

Categorías

Bibliografias

True Fir Spacing Trials 10-Year Results (en Inglés)

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

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Reseña del libro "True Fir Spacing Trials 10-Year Results (en Inglés)"

Eighteen precommercial thinning trials were established in true fir-hemlock stands in the Olympic Mountains and the west side of the Cascade Range during the period 1987 through 1994. This paper updates a previous report, with results for the first 10 years after establishment. Results are given for (1) all trees, (2) the largest 80 per acre of any species, and (3) those noble fir (Abies procera Rehd.) and Pacific silver fir (Abies amabilis Dougl. ex Forbes) included in the largest 80 per acre. Diameter growth of all species increased with increase in spacing. Height growth of Pacific silver fir decreased with increase in spacing. The largest 80 trees per acre of all species showed some increase in diameter and basal area growth with increased spacing, while height growth declined slightly and volume growth was nearly constant. Over time, these installations will provide a unique source of information on early development of managed stands of these species, for which little information is now available.