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Chapter 1 Minimum Flows and Levels - Southwest Florida Water ...

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Upl<strong>and</strong> – Any area that does not qualify as a wetl<strong>and</strong> because the associated<br />

hydrologic regime is not sufficiently wet to elicit development of vegetation, soils<br />

<strong>and</strong>/or hydrologic characteristics associated with wetl<strong>and</strong>s.<br />

<strong>Water</strong>shed – The total topographic region or area bounded peripherally by a<br />

divide <strong>and</strong> draining ultimately to a particular watercourse or body of water; also<br />

called catchment area, drainage area, <strong>and</strong> basin.<br />

Weighted Usable Area (WUA) – A component of PHABSIM which is an<br />

indicator of the net suitability of use of a given stream reach by a certain life<br />

stage of a certain species.<br />

Wetl<strong>and</strong>s – Those areas that are inundated or saturated by surface or<br />

groundwater at a frequency <strong>and</strong> duration sufficient to support, <strong>and</strong> that under<br />

normal circumstances do support a prevalence of vegetation typically adapted for<br />

life in saturated soil conditions. Wetl<strong>and</strong>s generally include swamps, marshes,<br />

bogs <strong>and</strong> similar areas.<br />

Wetl<strong>and</strong> Soils – A soil that has characteristics developed in a reducing<br />

atmosphere, which exists when periods of prolonged soil saturation results in<br />

anaerobic conditions.<br />

Wetl<strong>and</strong> Vegetation – The sum total of macrophytic plant life that occurs in<br />

areas where the frequency <strong>and</strong> duration of inundation or soil saturation produce<br />

permanently or periodically saturated soils of sufficient duration to exert a<br />

controlling influence on the plant species present.<br />

Wetted Perimeter – The cross-sectional distance along the stream bed <strong>and</strong><br />

banks that is in contact with water.<br />

Wetted Perimeter Inflection Point – A point on a curve relating wetted perimeter<br />

vs. discharge at which the slope of the line changes from convex to concave or<br />

vice versa.<br />

Woody Habitats – Any of the various living (e.g., exposed roots) or<br />

dead/decaying (e.g., snags) substrata composed of wood, usually originating<br />

from riparian vegetation that serve as habitation for various instream biota.<br />

7-7

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