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Filtering by: Subject Conifers -- Roots -- Oregon Degree Field Forest Resources

Simultaneous equation estimation for individual tree growth in young Southern Oregon and Northern California conifer plantations

Creator:

Hamann, Jeff D.

Abstract:

This thesis presents methods for obtaining asymptotically efficient and consistent parameters and variance estimates for simultaneous equations in a forest growth modelling context. Ordinary Least Squares (OLS), Seemingly Unrelated Regressions (SUR), Two-Stage Least Squares (2SLS) and Three- Stage Least Squares (3SLS) are presented for linear models. The variables, model types...

Resource Type:

Masters Thesis
Mixed-Severity Fire Effects on Biological Legacies and Vegetation Response in Pseudotsuga Forests of Western Oregon's Central Cascades, USA

Creator:

Dunn, Christopher J.

Abstract:

Mixed-severity fire occurrence is increasingly recognized in Pseudotsuga forests of the Pacific Northwest, but questions remain about how tree mortality varies, and forest structure is altered, across the disturbance gradient observed in these fires. Therefore, we sampled live and dead biological legacies at 45 one ha plots, with four 0.10...

Resource Type:

Dissertation

Full Text:

regime included mixed evergreen-conifer forests of the Klamath Mountains of southwest Oregon, mixed