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Filtering by: Subject Wetlands -- Oregon Academic Affiliation Geography Degree Field Geography

Vegetation ecology and net primary productivity of selected freshwater wetlands in Oregon

Creator:

Boss, Theodore R. (Theodore Robert)

Abstract:

Vegetation ecology of eight Oregon freshwater wetlands was described and net aerial primary productivity estimated in four wetlands. Plant cover samples were used to classify 37 wetland and 11 terrestrial communities by agglomerative hierarchical clustering. Samples and species were ordinated. Direct measurements were made of sample relative elevation, inundation duration,...

Resource Type:

Dissertation

Full Text:

tended to be more floristically similar to one another than to those of central Oregon. Forested wetland
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
Value assessment of Jackson-Frazier Wetland, Benton County, Oregon : a case study

Creator:

Marshall, John L. (John Lee), 1952-

Abstract:

A growing realization that wetlands are potentially valuable resources has recently stimulated efforts towards their protection. While a foundation for wetland management exists, decision makers still lack adequate tools for addressing issues of wetland preservation vs. development. Wetland preservation values are often neglected in traditional market analyses and in the...

Resource Type:

Masters Thesis