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Filtering by: Subject Conifers Degree Field Forest Engineering

The influence of soil compaction on early conifer growth in the southern Washington Cascades

Creator:

Robbins, Richard William

Abstract:

This study evaluated the effect of soil compaction on the growth of natural regeneration on volcanic ash-influenced soils in the southern Washington Cascades. Growth of 9 to 18 year-old sapling-. sized Ponderosa pine (Pinus ponderosa Laws.) was studied on sites ranging from 915 to 1006 m elevation in an area...

Resource Type:

Masters Thesis
Buffer strip dynamics in the Western Oregon Cascades

Creator:

Sherwood, Kim

Abstract:

Although buffer strips have long been used as a protection tool when logging near streams, long-term studies investigating buffer strip dynamics are rare. Steinblums et al. (1984) inventoried 40 buffer strips 1 to 15 years old in the western Oregon Cascades beginning in the summer of 1975. Numerous site and...

Resource Type:

Masters Thesis

Full Text:

features of mountain streams. Conifer regeneration studies are non-existent in Oregon Cascades buffer
Wind direction and effect of tree lean on coarse woody debris production

Creator:

Bustos-Letelier, Oscar

Abstract:

The natural fall of trees in riparian areas is an important source of coarse woody debris for mountain streams, improving fish habitat and influencing stream morphology. Existing models consider the probability of coarse woody debris entering a stream channel based upon trees having a random direction of fall without consideration...

Resource Type:

Masters Thesis