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<br />22 <br />FIGURE LEGENDS <br />Figure 1. Relative canopy cover (~) of growth-form groups and species <br />richness on nitrogen (N), control (C),, a,nd sucrose (S) plots. <br />Values are means of 12 observations (4 replications x 3 years). <br />Confidence intervals (P < 0.05) of the means are given by the <br />vertical lines. <br />Figure 2. Nitrogen contents (%) of five major seral species from nitrogen <br />(N), control (C), and sucrose (S) plots, September 1990. Values <br />are means of 4 replications. Confidence intervals (P < 0.05) of <br />the means are given by the vertical lines. <br />