Fig. 3. Relationship between cumulative days from start of study in fall on soil surface roughness (C_par) for (a) Wilson (1993-1994) and (b) Lethbridge (1994-1995) sites. For ease of interpretation, the x-axis label is shown as date rather than cumulative days. Cumulative days are shown above or below data points. Day 1 = 26 Oct. 1993 at Wilson and 30 Aug. 1994 at Lethbridge. Error bars = 1 standard error

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