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Filtering by: Subject Douglas fir -- Fertilizers Committee Member Hibbs, David Decade 1990-1999

Pruning young Douglas-fir (Pseudotsuga menziesii [mirb.] Franco) in a western Oregon agroforestry setting : changes in tree water relations and effects on forage production

Creator:

Withrow-Robinson, Bradford A.

Abstract:

There is renewed interest in agroforestry as a management strategy for marginal agricultural lands in western Oregon. Silvopastoral systems combine tree and forage production, which involve crops and practices familiar to the area. The objective of this study was to determine how management influences the physiology and ecological interactions of...

Resource Type:

Masters Thesis
Disaggregative and individual-tree growth models in theory and application

Creator:

Ritchie, Martin W.

Abstract:

Disaggregative and individual-tree/distance-independent modeling methods are compared and contrasted. Differences between the two are related to differences in functional and apparent resolution and may be illustrated using aggregation theory. When considering models of different levels of resolution describing a given phenomenon, invariance with respect to the aggregation implied (symmetry) may...

Resource Type:

Dissertation