Riparian Reach Point
Riparian reach endpoints for the Creswell study area were recorded as a point layer. Riparianreaches were inventoried and assessed in the field and office according to the Urban RiparianInventory and Assessment Guide (Division of State Lands (as cited), 1998). Reaches wereinitially mapped in the office using aerial imagery and were delineated based on the dominantland use along each qualifying water resource. A qualifying resource must be perennial and fishbearing. A fish bearing stream is defined as one that provides habitat for either resident oranadromous fish such as salmon and steelhead. Reaches on each side of a stream (defined asthe left side and right side when facing downstream) were assigned a unique code. The start andend points of the riparian reaches illustrate the beginning and/or ending of dominant land usechanges. The width of the riparian corridor was determined by the potential tree height (PTH) ofthe dominant tree species growing in the reach.All field data were collected and recorded using Trimble Yuma, Global PositioningSystem/Geographic Information System (GPS/GIS) data recorders. Aerial imagery and shapefilesof the study area were loaded onto the units for reference in the field. The GPS/GIS unitsenabled field crews to digitize wetland boundaries in ArcPad; edit existing wetland boundaries asnecessary; map probable wetlands, artificial wetlands and locations of sample plots, and mapstreams. After the field work, data were uploaded onto a desktop computer for viewing and finalediting. Data are intended for planning purposes only.
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