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10 <br />C~ <br />• <br />350 <br />300 <br />250 <br />ri; <br />E 200 <br />0 <br />m <br />c 150 <br />0 <br />0 100 <br />6 <br />50 <br />0 <br />RF R DF D RD <br />Manipulation <br />C~ <br />Figure 2. Aboveground mean biomass of perennial grasses and forbs <br />on five soil manipulations, ten years after seeding. No <br />significant differences were found within lifeforms <br />across the five manipulations (p<_0.05). RF = rip and <br />fertilize spoil; R = rip spoil; DF = disc and fertilize <br />spoil; d = disc spoil; RD = rip topsoil and spoil. <br />