WRIA 31 Instream Habitat Assessment

Table 15. Average canopy cover, inner riparian zone width, and typical vegetation for each reach sampled.Basin Stream Reach CanopyCover (%)Chapman CreekPine CreekRock CreekAverageWidth ofInnerRiparianZone (m)Typical VegetationClass in InnerRiparian ZoneMost CommonDominant Speciesin Inner RiparianZoneMost CommonSub-dominantSpecies in InnerRiparian ZoneChapman CreekGrasslands and Cottonwood and Cottonwood and1 45.0 10.7 ForbsAlderAlder2 37.2 5.8Small TreesAlderWillow, Walnut,NoneGrasslands and3 39.2 4.6 Forbs Alder None, ElderberryPine CreekShrub and seedlings,samplings and poles,1 11.4 3.3 small trees Alder and Willow WillowShrub and seedlings,2 21.3 5.7 samplings and poles Alder WillowShrub and seedlings,3 16.0 4.0 small tree Alder and Willow Willow and Alder4 26.3 5.3 Small tree Alder WillowLuna GulchGrasslands andWhite oak,Forbs, small treePonderosa Pine,1 6.0 5.6White oak, Alder and none2 41.7 4.6 Small tree Alder White oak3 60.0 4.6 Small tree Alder WillowQuartz Creek 1 46.7 3.0 Small tree Alder White oakRock Creek1 18.3 6.5 Saplings and poles Alder Walnut2 28.3 6.4 Saplings and poles Alder None4 17.5 5.7 Small tree Alder WalnutSmall treeWhite oak, Walnut,5 13.3 7.1AlderBig leaf maple6 13.3 6.1 Saplings and poles Alder None7 10.7 3.0 Small tree Alder NoneGrasslands and forbs8 3.3 2.5 to saplings and poles Cottonwood, Willow Willow, Alder9 11.7 4.6 Saplings and poles Alder NoneWRIA 31 Instream Habitat Assessment 35 Watershed Professionals Network