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• RESULTS <br />Data trom the 1996 revegetation monitoring studies at the Seneca II Mine are presented in <br />Tables 1 through 21 contained in Appendix 1. The list of plant species observed during these <br />studies (reclaimed and reference areas) are included in Table 22 in Appendix 2. Seed mixes <br />applied on areas revegetated prior to 1981 and in years 1981 through 1993 are included for <br />reference in Appendix 3. Site data from sample transects (orientation, slope, aspect, and <br />initials of samplers) are included as Table 23 in Appendix 4. Photographs of representative <br />locations within the reclaimed areas sampled in 1996, as well as photographs of the Mountain <br />Brush and Sagebrush reference areas are included in Appendix 5. Graphic depiction of <br />summaries of vegetation data, precipitation, and total degree days are presented in Figures 1 <br />through 10 of this report, starting on page 35. <br />In the following descriptions, species that were encountered quantitatively (i.e. "hit" by a <br />sample point) are described first for a particular tifeform. Species listed as "also present" <br />were not hit but were present within one meter to either side of the sample transect. <br />• 1989 Reclaimed Areas (Photographs 1 through 4) <br />v r (Table 1) <br />Introduced perennial cool season grass was the dominant life form in this unit with 33.3 <br />percent of total vegetation cover. Intermediate wheatgrass (Thinopyrum intermedium) <br />accounted for most of this but orchard grass (Dactylis glomerata) was also important. <br />Native perennial cool season grasses averaged 20.9 percent of total vegetation cover. <br />Agassiz bluegrass (Poa agassizensis) accounted for most of this. Introduced annual grass <br />averaged 4.9 percent of total vegetation cover. Japanese brome (Bromus iaoonicus) and <br />cheatgrass (Anisantha tectorum) accounted for nearly all of this average. <br />Introduced perennial (orbs averaged 29.2 percent of total vegetation cover. Alfalfa <br />(Medicago saliva) accounted for most of this but titer milkvetch (Astragalus titer) was <br />also important. Native perennial forbs averaged 3.8 percent of total vegetation cover. <br />Introduced annual and biennial forbs averaged 7.0 percent of total vegetation cover. <br />Twolobe speedwell (Pocilla biloba) accounted for most of this average. Yellow sweetclover <br />• <br />9 <br />