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Comparison of soil and vegetation map delineation shapes and areal correspondence

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dc.contributor.advisor Rosenfeld, Charles L.
dc.creator Bilton, Janet
dc.date.accessioned 2008-10-17T16:16:56Z
dc.date.available 2008-10-17T16:16:56Z
dc.date.issued 1982-03-19
dc.identifier.uri http://hdl.handle.net/1957/9534
dc.description Graduation date: 1982 en_US
dc.description Presentation date: 1982-03-19
dc.description.abstract Map delineations of soil and vegetation for a 14,000 acre (5,800 hectare) site in the Oregon Coast Range were compared. Research objectives were to ascertain the types of information that could be extracted from delineation comparisons and to develop a methodology suited to this purpose. The latter objective was achieved in a preliminary study involving a small number of soil-vegetation complexes. Data on shape similarity and areal correspondence were collected using a digital planimeter. The methodology developed was then applied to three data sets: all delineations of two soil mapping units which differed only in dissection, and delineations from a random sample of other mapping units. Nonparametric statistical procedures were employed to analyze the data in terms of soil mapping units and in terms of physiographic position. Little association was found between soil and vegetation delineations overall. However, vegetation and soil delineation shapes, as measured using an elongation ratio, appear to be more similar in the uplands than in the lowlands. Greater upland contrasts in factors significant to both soils and vegetation may contribute to this trend. Areal correspondence was evaluated with the intersection/union ratio for vegetation and soil polygons. Ranks of vegetation communities according to their areal correspondence with the soil body were generally inconsistent. The dissected soil showed the greatest amount of consistency in areal correspondence between upland and lowland complexes. This raises the possibility that dissection may be a more important determinant of community distributions than is physiographic position. Finally, shape similarity and areal correspondence trends were associated in the uplands but not in the lowlands. The more consistent shape comparisons in the uplands may contribute to this dichotomy of results. en_US
dc.language.iso en_US en_US
dc.relation Explorer Site -- Oregon Explorer en_US
dc.subject.lcsh Plant-soil relationships -- Oregon en_US
dc.subject.lcsh Plant-soil relationships -- Coast Ranges en_US
dc.title Comparison of soil and vegetation map delineation shapes and areal correspondence en_US
dc.type Thesis en_US
dc.degree.name Master of Science (M.S.) in Geography en_US
dc.degree.level Master's en_US
dc.degree.discipline Science en_US
dc.degree.grantor Oregon State University en_US
dc.contributor.committeemember Huddleston, Herb
dc.contributor.committeemember Rosenfeld, Chuck
dc.contributor.committeemember Kimerling, Jon
dc.contributor.committeemember Oles, Keith
dc.contributor.committeemember Jackson, Phil
dc.description.digitization Master files scanned at 600 ppi (256 Grayscale) using Capture Perfect 3.0 on a Canon DR-9080C in TIF format. PDF derivative scanned at 300 ppi (256 Grayscale), using Capture Perfect 3.0, on a Canon DR-9080C. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR. en_US

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