Results of the analysis of the effect of the water table depth on the strength and direction of the Selection Effect on sand and loam soils in 1952 and 1953.

<p> The curves are back-transformed slopes from the mixed-effects model with their 95% confidence intervals (shaded). The positive Selection Effect on loam in 1953 is driven by increasing dominance by <i>Arrhenatherum elatius</i> as depth to the water table increased.