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- Fl~IsccwsPraActimtosWyl6speram:) . <br />. PF~A 1987 1966 1989 1990 1931 1472 1933 1994 1965 1986 1937 1936 1889 2700 2101 2002 <br /> 1996 tom. ZXi 1046 <br /> 19981Zrd. - - - - - - - - - - - - - - - 874 <br /> PEOJ(nP~tue - - - - - - 3235 - - 17&5 - 1553 - - 1635 919 <br /> 149~Pd;4re 3050 7371 2741 2874 3164 3657 2716 4510 33&5 - 4?71 - - 2338 8C8 <br /> WI' 1988 2257 1343 2303 7374 2747 2937 7732 3170 2234 2926 2379 0 917 1674 912 <br /> Ntrt B•.I~F E51 1126 416 615 724 1147 782 346 965 981 978 1115 1172 341 519 435 <br /> `~FY~. 1312 1212 503 1252 1232 876 1454 1110 1460 1367 1574 1720 1752 632 710 805 <br /> Mdi SJr f~f. - - - - - - - - - - - - - - 578 23i <br /> 'FMa~ d all redairred aeassarpled in a ~tialayea, nilta and ~ d areas sarrped h3.evaiei ostte yes <br /> Herbaceous production of the Mountain Brush reference area from 1957 to 2002 has averaged <br /> 766 Ib/ac. The 2002 level of 435 Ib/ac is significantly lower than the long-term average (at the 99 <br /> percent level of confidence). Herbaceous production of the Sagebrush reference area over this <br /> period was 1190 Ib/ac. 2002 herbaceous production of 805 Ib/ac was likewise significantly below <br /> average. Production of the Wadge Pasture reclaimed area at 808 Ib/ac was also significantly <br /> below the long-term average of 2970 Iblac. The proportion of Wadge Pasture production <br /> contributed by alfalfa in 2002 was 14.7%, down from 2001 when it was 22.6°/a, which in turn was <br /> down from 34.5% in 1998, the last time production data were collected there. This represents <br /> progress toward a more reasonable presence of this introduced perennial forb. <br /> Woody Pfant Density <br /> Figure 3 graphically presents shrub density totals for reclaimed areas sampled in 2002. The <br /> 1998 reclamation area was last sampled in 2000, and at that time averaged 202 woody plant <br /> stems per acre. The 2002 level of 425 stems per acre represents a promising increase. Relative <br /> to the technical standard of 1000 stems per acre, none of the average densities of reclaimed <br /> areas reached 90% of that standard (900 stems per acre). The PECOCO Pasture value of 627 <br /> stems per acre was the closest. <br />The long-running record of woody plant density in the Wadge and PECOCO Pasture units is <br />tabulated below: <br />17 <br />