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1.5 <br />1.0 <br />0.5 <br />0.0 <br />400 <br />0 <br />Native Sites <br />800 <br />500 <br />1200 <br />1000 <br />Shannon Value <br />Productivity (kglha) <br />153 <br />1600 <br />1500 <br />1.5 <br />1.0 <br />0.5 <br />0 <br />Reclaimed Sites <br />Species Richness <br />1000 2000 3000 <br />0 1000 2000 3000 <br />Shannon Value <br />0 0 ` — <br />0 500 1000 1500 0 1000 2000 3000 <br />Productivity (kgfia) <br />FIGURE 1. Relationships between diversity and productivity (peak standing crap) of sensnatural <br />plant communities (left column) and revegetation column). Sccninatural community types were <br />sampled for a premine baseline at the Spring Creek Kline; revegetated pastures were sampled at <br />Western Energy's Rosebud Mine. Both are coal mines m southeastern Montana. <br />