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- III IIIIIIIIIillllli f - � , z��tib <br /> 999 <br /> Effect of Fertility Treatments on Vegetation Ground Cover and Species Frequency <br /> in 1985 on Rock waste over Tailing on Upper Subalpine Test Site, Robinson <br /> Tailing Pond, Climax <br /> The plot layout, fertility rates and seeding mixture for these plots Iseededin 1978 are iven in hti cha�1 dui l��umP hPc; j�ol0r;4H cta+p ii►,; si t <br /> 1984). e species mixture seeded was the hand-collected native seed mixture <br /> use in the alpine plots plus Achillea Lanulosa and Linaria vulgaris. The <br /> latter two species are extensive colonizers on su_aTpine is ur antes. <br /> Introduced species were inadvertently seeded over these plots when a hydroseeder <br /> was used to water the plots in the summer of 1979. The mine rock waste is about <br /> 60 cm thick over acid tailing. <br /> These plots were evaluated by Guillaume in 1980. Only 1985 data is <br /> included in this writeup. In 1985 some of the steep slope plots had the <br /> appearances of being affected by acidification of the rock waste (red iron <br /> staining) and supported little or no vegetation. No attempt was made to <br /> evaluate vegetation on the affected plots. <br /> The data allows no good statistical comparisons but the favorable effect of <br /> the sewage sludge treatments is obvious (Table 1). As expected, the steep slope <br /> is a more difficult site on which to establish and maintain vegetation cover <br /> (Table 1). In general , the upper 1/3 of the steep slope had much less <br /> vegetation than the lower portion of the slope. <br /> The forbs, Achillea lanulosa and Linaria vulgaris, had a high frequency on <br /> the plots treate w�F---sewage sludge or opsoi a es 2 and 3). <br /> Table 1. Percent vegetation cover in August 1985 on fertility and soil cover <br /> treatments applied to mine rock waste over tailing. <br /> Level eep Slope <br /> Treatment Plots Plots <br /> -------------A,----------- <br /> no soil 18-46-0 @ 336 kg/ha 1978 9+2 t 1 <br /> no soil 18-46-0 @ 336 kg/ha 1978 + 112 kg H/ha 1980 1T+1 2 <br /> no soil 44 t/ha sewage sludge+22 t/ha woodchips 1978 27+2 <br /> no soil 44 t/ha sewage sludge+88 t/ha woodchips 1978 21+1 14+9 <br /> no soil 88 t/ha sewage sludge+22 t/ha woodchips 1978 34+8 <br /> no soil 88 t/ha sewage sludge+88 t/ha woodchips 1978 37+13 23+5 <br /> 2.5 cm soil 18-46-0 @ 336 kg/ha 1978 14+3 <br /> 2.5 cm soil 18-46-0 @ 336 kg/ha 1978 + 112 kg/ha N 1980 20+1 # <br /> 10 cm soil 18-46-0 @ 336 kg/ha 1978 20+6 7+4 <br /> 10 cm soil 18-46-0 @ 336 kg/ha 1978 + 112 kg/ha N 1980 30+6 16+7 <br /> tStandard deviation <br /> *not determined <br /> 1 <br />