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Filtering by: Subject Wetlands -- Oregon Committee Member Muckleston, Keith W. Degree Field Geography

Oregon's Mid-Willamette Valley wetlands : agricultural uses, alternative uses, problems and trends

Creator:

Tsutsui, Setsuo Harry

Abstract:

The wetlands are distinguished from other lands of the Mid-Willamette Valley by excessive soil moisture. The wetlands, as defined for this study, consist of 20 soil series (in 22 soil mapping units) which are classified by the Soil Conservation Service as having excessive wetness as the major factor limiting their...

Resource Type:

Dissertation

Full Text:

production of Oregon. In 1977, this region produced 28.4% of the state's value of sales from agricultural
Areal distribution, change, and restoration potential of wetlands within the lower Columbia River riparian zone, 1948-1991

Creator:

Allen, Tracy Hunter

Abstract:

The lower Columbia River (LCR) riparian zone is rich in habitat diversity. However, the natural beauty and species diversity along the river have increasingly become affected by human activity. This study quantifies the areal extent and degree of wetlands change and associated causes along the LCR over the past 44...

Resource Type:

Dissertation