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the Middle Creek region. Redtop and clover (Trifolium), which are <br />considered to be moderately sensitive, are also found. On a weighted <br />average, a total of 5.6% of the Middle Creek sample area is composed of <br />moderately sensitive species, which represents 7.6% of the relative <br />composition. <br />Production data was collected for Pasture 2 of the Middle Creek region. <br />As shown on Table 5, an average of 46.6 grams per quarter meter square plot <br />were obtained which corresponds to approximately 1,660 pounds per acre of <br />oven dried forage. Moderately tolerant plants compose 64.1% of that amount <br />and 25.3% is of moderately sensitive species. The vegetative cover of these <br />two categories in Pasture 2 is 44.9% for moderately tolerant and 4.20% for <br />moderately sensitive. The major component of moderately tolerant forage is <br />smooth brome (42.8%) and redtop (24.0%) is the major portion of moderately <br />sensitive forage. <br />The Trout Creek alluvial valley floor region was evaluated with the <br />assessment of irrigated pastures 7, 8N, 8S, 10, 11, 12E, 14, 15N, and 15S <br />which are denoted on map 1. Pasture 12W was also sampled; this pasture has <br />been irrigated but has not been improved for either hay or pasture <br />production. The area is more typical of a sagebrush/meadow type community. <br />Data from a total of 47 cover transects were collected in this area. Table <br />2, Trout Creek Alluvial Valley Floor, denotes the species cover and <br />composition as calculated on a weighted average basis for the 9 pastures <br />which were studied. In this region, total vegetative cover is 83.5%. The <br />grasses cover 53.3%, grasslike plants cover 9.2%, fortis comprise 19.0%, and <br />shrubs cover 2.0% of the area. <br />Smooth brome and reed canarygrass are both considered moderately <br />tolerant. Similar moderately tolerant species include tall fescue, foxtail <br />barley, intermediate wheatgrass, western wheatgrass, and wheatgrass. A total <br />of 17.0% of the area is composed of moderately tolerant grasses, as <br />calculated on a weighted average. Another 8.9% of the area is covered by <br />moderately tolerant grasslike species. The total coverage of moderately <br />tolerant species is 25.8% or 30.9% of the relative composition. Orchard <br />grass and timothy, both moderately sensitive species, are found in the area. <br />Various species of clover are also found. Moderately sensitive species <br />comprise 15.3% of the Trout Creek Area cover on a weighted average basis, <br />which represents 18.4% of the relative cover. Species production data was <br />obtained for Pasture 11 which is irrigated with water diverted from Trout <br />Creek above the confluence of Middle Creek. Table 6, Pasture Eleven <br />Vegetative Cover and Production, indicates a total of 127.5 grams per quarter <br />meter square plot were obtained from the pasture. This corresponds roughly <br />to 4550 pounds of oven dried forage per acre. Of this amount, 27.9% of the <br />relative production is composed of moderately tolerant species and 34.6% is <br />of moderately sensitive species. Smooth brome was the major component, <br />10.0%, of the moderately tolerant grasses while Carex, a moderately <br />tolerant grasslike plant, contributed 13.6%. Redtop sup ip ed 23.2% of the <br />moderately sensitive total production and timothy supplied 9.3%. In Pasture <br />11, the vegetative cover of moderately tolerant plants is 31.4% and <br />moderately sensitive plants is 21.4%. <br />The vegetative cover of the Fish Creek area is reported on Tables 3 and <br />4, Fish Creek Alluvial Valley Floor - Vegetative Cover of Irrigated Pastures <br />