(a) 00 0 0 0 0 4.5 - 4- E3.5 - S3- |2.5 . 2 1- 0.5 * 0 * 0 0 0 * - -- w- - 0 2 4 6 8 10 12 14 16 18 6 7 8s 1. O P ,, -1600 1400 1200 -1000 800 600 400 -200 -0 4 6 8 10 12 14 16 18 20 0 0 0 0 0 0 0 * 0 0 0 , 00 a --1 ---- 0 2 4 6 8 10 12 14 16 18 20 Age (years) 0Early Successional Species Late Successional Species Figure 7.18. Shrub Trajectories in Constructed Forested Wetlands: (a) Shrub Species Richness, (b) Shrub Stem Density, and (c) Stem Diameter. 7-76 * * u 0* 25000 20000 S15000 S10000 - 5000- 0- 0 2 4- 3.5 - 3 2.5 2- 1.5 1- 0.5 0- I 1 - - A A