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Filtering by: Subject Douglas fir -- Yields -- Northwest, Pacific -- Mathematical models

Development of a hybrid modeling framework for intensively managed Douglas-fir plantations in the Pacific Northwest

Creator:

Weiskittel, Aaron R.

Abstract:

Forest growth models in the Pacific Northwest are predominantly empirical. Predictions of yield under alternative silvicultural regimes cannot rely completely on field trials; yet empirical growth models are often inadequate for extrapolating untested regimes and genotypes. The limitations of current models include (1) long time-steps (e.g. 5-10 years); (2) insufficient...

Resource Type:

Dissertation

Full Text:

Intensively Managed Douglas-Fir Plantations in the Pacific Northwest. Abstract approved: Douglas A
Equations for predicting height-to-crown-base, 5-year diameter-growth rate, 5-year height-growth rate, 5-year mortality rate, and maximum size-density trajectory for Douglas-fir and western hemlock in the coastal region of the Pacific Northwest

Creator:

Hann, David W., Marshall, David D., Hanus, Mark L., and Oregon State University. Forest Research Laboratory

Abstract:

Using existing permanent research plot data, we developed equations for predicting height-to-crown-base (HCB), 5-yr diametergrowth rate (delta D), 5-yr height-growth rate (delta H), 5-yr mortality rate (PM), and the maximum size-density trajectory for Douglasfir and western hemlock in the coastal region of the Pacific Northwest. With the exception of the...

Resource Type:

Technical Report

Full Text:

TRAJECTORY FOR DOUGLAS-FIR AND WESTERN HEMLOCK IN THE COASTAL REGION OF THE PACIFIC NORTHWEST by David W

ScholarsArchive@OSU

Development of a hybrid modeling framework for intensively managed Douglas-fir plantations in the Pacific Northwest

Equations for predicting height-to-crown-base, 5-year diameter-growth rate, 5-year height-growth rate, 5-year mortality rate, and maximum size-density trajectory for Douglas-fir and western hemlock in the coastal region of the Pacific Northwest

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