Bottomland vegetation distribution along Passage Creek, Virginia, in relation to fluvial landforms

Ecology
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Abstract

Persistent distribution patterns of woody vegetation within the bottomland forest of Passage Creek, Virginia, were related to fluvial landforms, channel geometry, streamflow characteristics, and sediment—size characteristics. Vegetation patterns were determined from species presence as observed in transects and traverses on landforms developed along the stream. Distinct species distributional patterns were found on four common fluvial geomorphic landforms: depositional bar, active—channel shelf, floodplain, and terrace. Independent hydrologic characteristics (flow duration and flood frequency) were determined for each of the landforms. Vegetation data were analyzed by binary discriminant analysis, principal components analysis, and detrended correspondence analysis. Results and related field observations suggest that certain species are significantly associated with specific fluvial landforms. Vegetation patterns appear to develop more as a result of hydrologic processes associated with each fluvial landform rather than from sediment—size characteristics. Flood disturbance may be an important factor in maintaining the vegetation patterns, which may therefore be used as indicators for particular hydrogeomorphic site conditions.

Publication type Article
Publication Subtype Journal Article
Title Bottomland vegetation distribution along Passage Creek, Virginia, in relation to fluvial landforms
Series title Ecology
DOI 10.2307/1940528
Volume 66
Issue 3
Year Published 1985
Language English
Publisher U.S. Geological Survey
Contributing office(s) National Research Program - Eastern Branch
Description 12 p.
First page 670
Last page 681
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