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<br />I <br />r <br /> <br />, <br /> <br />o <br />o <br />W <br />ti' <br /> <br />community may intenningle with an association of the mountain shrub community, with only <br />scattered clumps or single trees of douglas fir along with open stands of birchleaf mountain <br />mahogany, utah serviceberry and utah snowberry. <br /> <br />Ecological sites found in this community are: <br /> <br />Mountain loam (PSME) <br />Upland very steep shallow loam <br />Upland very steep loam <br /> <br />Production on ecological sites in this community range from a high of approximately 700 <br />Ibs/acre in favorable years to as low as 130 Ibs/acre during poor years, with an average <br />production of about 350 pounds per acre during nonnal years. <br /> <br />Vegetative treatments or surface distUIbing type projects are not recommended in this community <br />due to the steepness of the slopes and the shallow soils. <br /> <br />Within the greater sagers wash watershed there is one vegetative association common to all of <br />the broad vegetative communities described above. This vegetative association is known as <br />riparian vegetation, Riparian vegetation is defmed as that vegetation which is dependent on <br />pennanent water either surface or subsurface. The species composition of the riparian type <br />varies depending on the soils, availability of and depth of water, elevation, and aspect. The <br />most common species found in the riparian types in the salt desert shrub community are salt <br />cedar (Tamarix pentandra), willow (Salix spp.), black greasewood, and in some areas <br />cottonwood (populus fremontii) along with various sedges (Carex spp.) and rushes (Juncus spp.) <br />plus many of the perennial grasses listed in the community description. In the pinyon-juniper, <br />sagebrush, douglas fir and mountain shrub communities riparian vegetation may consist of <br />willows, cottonwood, box elder (Acer negundo), rabbit brush, various sedges and rushes, and <br />many of the perennial grasses listed in the community descriptions. This vegetative association <br />makes up less than I % of the watershed area or approximately 1200 acres. It is important as <br />this type vegetation helps to stabilize the drainage systems through out the watershed, ftIter <br />sediment and store salt. Care should be taken to maintain or improve the vegetative conditions <br />on all riparian areas within the watershed. An intensive inventory of these areas would be <br />needed to detennine the ecological sites, status, and potential production. It is recommended <br />that as the watershed plan is implemented that this be done, and project work and <br />implementation be done to improve or maintain the condition of the riparian areas within the <br />watershed. <br /> <br />23 <br />