<p>Appendix. Table 2. Total dry weight(g) of each species at the end of eight weeks of exposure to root zone pH ranging from 5 to 9 organized by the five groups which were determined by the cluster analysis (see Fig. 1A).</p><p>Group 1 dogwood ph5 55.01 ph6 65.32 ph7 48.78 ph7.5 46.79 ph8 40.33 ph8.5 38.22 ph9 27.80</p><p>Group 2 paper birch chokecherry ph5 34.44 16.22 ph6 41.54 17.64 ph7 23.40 16.01 ph7.5 17.27 18.06 ph8 16.77 17.64 ph8.5 18.59 16.06 ph9 21.26 16.73 black Group 3 spruce tamarack ph5 4.68 14.33 ph6 5.13 12.15 ph7 4.95 11.94 ph7.5 5.06 8.03 ph8 4.38 8.99 ph8.5 5.19 11.07 ph9 4.51 9.48 white Group 4 aspen saskatoon spruce ph5 24.17 17.22 24.51 ph6 32.52 17.96 25.41 ph7 26.92 18.13 22.95 ph7.5 24.49 21.06 19.73 ph8 20.30 18.84 18.43 ph8.5 20.73 18.74 24.54 ph9 16.67 16.98 16.67 buffalo Group 5 bearberry blueberry berry green alder potentilla jack pine labrador tea ph5 3.71 1.53 0.67 5.50 9.87 16.19 3.73 ph6 2.90 2.37 0.99 5.56 11.96 11.59 4.06 ph7 3.52 2.19 0.80 5.57 9.49 11.21 2.84 ph7.5 3.09 1.88 0.87 5.03 6.68 12.37 2.78 ph8 3.41 1.76 0.72 5.49 7.13 10.96 2.82 ph8.5 2.47 2.81 1.00 5.95 6.74 9.61 2.77 ph9 2.02 2.08 1.02 5.76 6.50 8.23 2.83 Table 3. Foliar nutrient concentrations of each species N, P, K, Mg, and Ca in mg g-1 DW, and Zn, Mn and Fe in µg g-1 DW)) at the end of eight weeks of exposure to root zone pH ranging from 5 to 9 organized by the two groups which were determined by the cluster analysis (see Fig. 1B).</p><p>N P K Mg Mn Zn Fe Ca bearberry 5.00 11.08 1.50 8.92 0.87 13.63 34.31 41.91 2.69 6.00 9.92 1.05 7.26 0.76 12.16 30.61 39.00 2.37 7.00 9.34 1.16 8.72 0.70 10.98 27.37 44.36 2.35 7.50 10.80 1.14 11.04 0.83 12.62 34.25 46.63 2.83 8.00 10.05 1.05 12.74 0.81 12.11 23.16 42.70 2.16 8.50 10.01 0.91 11.81 0.78 12.99 24.07 55.07 1.94 9.00 10.92 0.95 15.58 0.93 11.57 23.77 63.10 2.43 black spruce 5.00 27.97 3.99 6.39 1.82 208.83 79.28 202.52 8.02 6.00 23.44 3.19 6.88 1.67 182.41 61.15 55.01 9.90 7.00 26.35 3.25 7.33 1.84 132.27 61.91 61.52 9.50 7.50 17.60 2.55 9.10 1.71 96.45 45.85 53.65 7.44 8.00 18.16 2.39 9.69 1.59 131.69 45.25 64.36 5.92 8.50 15.96 2.40 13.01 1.47 117.92 62.51 63.21 5.93 9.00 14.92 2.34 15.66 1.52 140.94 48.17 77.06 7.08 blueberry 5.00 16.95 1.76 10.47 1.25 55.36 34.47 64.14 3.21 6.00 18.31 1.74 11.89 1.36 60.73 27.87 59.84 3.79 7.00 15.25 1.32 9.35 1.31 88.04 26.50 40.26 2.86 7.50 16.20 1.54 13.45 1.42 77.69 30.38 60.24 3.25 8.00 14.48 1.41 14.64 1.32 78.05 33.20 64.07 2.91 8.50 13.38 1.22 12.96 1.32 77.42 22.31 83.94 2.47 9.00 12.76 1.09 18.46 1.22 58.60 29.39 56.61 2.57 buffalo berry 5.00 26.34 4.82 23.10 1.83 27.04 41.74 88.73 6.92 6.00 24.35 5.20 20.08 1.94 27.97 32.09 83.55 7.10 7.00 22.71 4.57 21.57 1.86 23.21 29.88 70.03 7.01 7.50 21.32 3.84 24.34 2.00 22.97 25.94 62.50 6.98 8.00 19.83 3.30 26.39 2.19 17.65 27.44 61.10 5.40 8.50 20.72 2.97 38.54 1.72 17.20 28.73 58.53 4.22 9.00 22.35 2.59 32.75 1.50 16.93 21.73 69.62 4.06 dogwood 5.00 25.13 3.87 15.10 2.83 20.29 32.22 96.95 17.41 6.00 24.97 3.72 15.07 2.84 23.56 25.10 61.40 19.04 7.00 20.66 2.85 28.14 2.11 19.30 20.36 56.20 14.17 7.50 23.37 3.29 23.11 3.29 26.13 29.46 49.54 22.82 8.00 19.79 1.98 33.63 2.43 19.75 20.97 36.30 11.43 8.50 17.04 1.34 36.41 1.29 15.38 17.31 30.16 7.76 9.00 15.72 0.97 36.97 1.01 16.05 19.29 43.68 7.40 green alder 5.00 37.25 4.00 15.87 2.48 20.32 21.80 83.55 9.55 6.00 37.26 5.51 19.25 2.50 21.46 20.56 86.30 10.39 7.00 33.42 6.26 26.63 2.88 19.16 21.05 65.62 9.15 7.50 31.64 3.96 23.09 2.66 12.03 15.42 54.16 8.65 8.00 28.76 2.52 25.23 2.43 7.73 16.24 75.91 4.15 8.50 29.52 2.48 27.93 2.07 7.03 15.37 64.48 3.86 9.00 29.73 2.45 36.91 2.21 9.31 16.76 55.66 3.87 jack pine 5.00 19.39 1.93 6.50 1.14 118.87 91.12 54.47 3.01 6.00 12.92 1.51 4.83 1.18 109.71 53.56 42.66 3.04 7.00 10.35 1.26 5.14 1.08 58.80 29.16 49.23 2.92 7.50 11.77 1.16 5.55 0.89 51.02 30.19 54.12 2.34 8.00 10.39 1.00 6.06 0.84 48.93 25.62 58.79 2.10 8.50 9.94 0.95 6.34 0.88 56.00 22.28 65.67 2.04 9.00 10.75 1.16 6.73 0.94 72.29 29.30 88.68 2.45 labrador tea 5.00 14.95 1.47 8.07 1.08 35.45 19.41 37.15 2.88 6.00 13.25 1.25 8.39 1.17 38.16 17.22 30.68 3.02 7.00 12.56 1.24 8.61 1.35 34.63 17.43 42.92 3.57 7.50 12.06 1.15 9.00 1.54 39.25 21.30 48.47 3.78 8.00 11.88 0.79 12.81 1.25 40.77 20.36 38.90 2.96 8.50 11.80 0.76 16.86 1.33 33.36 20.48 52.98 3.11 9.00 11.53 0.78 13.40 1.17 40.82 19.92 48.66 2.81 potentilla 5.00 20.03 4.02 17.95 1.73 70.34 67.27 91.41 9.43 6.00 24.14 3.35 17.69 1.56 98.09 48.15 56.29 11.56 7.00 18.87 3.38 16.82 1.85 61.84 45.95 45.98 10.70 7.50 20.45 3.53 22.03 2.35 33.18 49.52 58.93 12.73 8.00 20.13 2.51 28.07 2.33 44.75 31.82 59.07 7.24 8.50 20.44 1.79 31.59 2.21 39.52 34.31 73.46 4.96 9.00 18.73 1.89 34.07 1.70 37.23 31.55 78.00 4.70 saskatoo n 5.00 26.31 3.59 9.30 4.11 74.95 54.54 101.25 6.52 6.00 27.87 4.72 15.30 3.97 158.07 37.20 110.52 8.64 7.00 24.07 3.90 17.87 4.16 166.91 43.60 57.24 10.38 7.50 21.80 2.20 13.87 3.55 45.22 27.85 51.42 7.16 8.00 26.29 3.40 17.31 4.15 114.56 33.07 48.49 8.63 8.50 26.14 2.10 10.46 3.18 18.69 26.61 43.74 4.60 9.00 26.71 2.72 9.64 3.58 13.42 34.83 54.66 4.50 tamarack 5.00 18.97 4.46 10.10 1.86 81.53 48.47 148.60 3.90 6.00 24.63 5.50 11.01 3.55 100.82 38.92 67.84 6.79 7.00 21.53 4.36 9.83 2.95 61.91 25.03 60.06 6.28 7.50 20.11 4.23 7.90 2.41 38.10 34.74 51.83 5.28 8.00 20.29 3.55 11.55 2.33 48.81 19.25 54.87 5.01 8.50 20.03 3.31 11.67 2.22 47.51 19.04 67.63 4.59 9.00 18.14 3.16 17.50 2.66 52.24 25.67 68.95 6.09 White spruce 5.00 12.74 1.76 4.97 0.91 126.65 20.65 76.41 3.13 6.00 11.78 1.42 4.52 0.84 121.05 18.61 121.66 3.51 7.00 11.51 1.34 4.85 0.72 120.90 12.83 105.05 3.63 7.50 13.42 1.42 5.40 0.83 127.96 17.35 132.21 2.99 8.00 13.02 1.67 4.90 1.04 161.05 17.31 124.22 3.83 8.50 13.39 1.32 3.37 0.71 88.79 15.71 50.04 2.18 9.00 16.55 2.07 4.79 1.14 158.32 26.05 72.78 3.36 Group 2 aspen 5.00 35.61 3.78 16.41 2.85 150.61 100.26 133.90 11.58 6.00 40.11 4.38 19.86 2.83 214.98 47.85 119.64 11.41 7.00 36.55 4.53 20.16 3.84 256.92 62.05 43.28 14.97 7.50 36.93 3.93 19.14 4.27 193.92 56.11 34.61 16.46 8.00 33.83 4.01 17.44 3.99 157.07 50.95 25.30 13.81 8.50 32.52 2.14 14.38 3.55 81.51 27.08 24.61 11.04 9.00 28.13 2.52 12.63 3.61 71.90 55.22 29.17 12.20 chokecherry 5.00 47.30 3.81 23.09 4.14 46.15 41.92 109.75 25.12 6.00 36.53 3.62 26.23 4.66 47.52 27.51 67.53 29.56 7.00 31.42 3.36 29.90 6.43 57.83 25.37 47.52 40.41 7.50 43.15 3.31 36.94 7.15 51.10 23.25 41.30 31.97 8.00 36.04 2.38 44.85 5.55 29.25 25.36 40.97 23.88 8.50 35.22 2.15 48.44 4.40 21.24 17.51 44.12 17.39 9.00 34.80 1.59 52.70 4.70 50.74 23.98 51.97 14.35 paper birch 5.00 41.71 6.24 22.86 2.42 96.56 77.08 162.22 7.23 6.00 41.29 5.93 20.97 2.50 64.99 41.53 83.34 8.47 7.00 38.56 6.25 41.48 4.21 105.95 61.31 54.87 10.55 7.50 37.87 3.51 38.53 4.47 111.19 55.66 43.54 11.04 8.00 29.43 2.55 34.10 2.53 68.51 42.87 47.33 6.41 8.50 42.59 2.64 44.14 2.80 60.85 36.20 50.58 5.65 9.00 31.17 1.73 42.87 2.56 53.44 36.15 69.61 4.14 Appendix - Figure captions</p><p>Fig. 7 Portrayal of the Generalized Additive Models showing standardized (A) leaf dry weight and (B) stem dry weight (with 95 % confidence interval) as a function of pH for each of the five species groups. “n.s.” indicates that the smoother function for that group was not significant; * indicates the smoother function for the group was significant. For species included in each group see Figure 1A. See also Table 1(A).</p><p>Fig. 8 Portrayal of the Generalized Additive Models showing standardized height (with 95 % confidence interval) as a function of pH for each of the five species groups. “n.s.” indicates that the smoother function for that group was not significant; * indicates the smoother function for the group was significant. For species included in each group see Figure 1A. See also Table 1(A).</p><p>Fig. 9 Portrayal of the Generalized Additive Models showing standardized (A) root dry weight and (B) root collar diameter (with 95 % confidence interval) as a function of pH for each of the five species groups. “n.s.” indicates that the smoother function for that group was not significant; * indicates the smoother function for the group was significant. For species included in each group see Figure 1A. See also Table 1(A).</p><p>Fig. 10 Portrayal of the Generalized Additive Models showing standardized transpiration (with 95 % confidence interval) as a function of pH for each of the five species groups. “n.s.” indicates that the smoother function for that group was not significant; * indicates the smoother function for the group was significant. For species included in each group see Figure 1A. See also Table 1(A). (A) (B)</p><p>* *</p><p>* *</p><p> n.s. n.s.</p><p>* n.s.</p><p>* n.s.</p><p>Fig. 7 *</p><p>*</p><p> n.s.</p><p> n.s.</p><p> n.s.</p><p>Fig. 8</p><p>(A) (B) </p><p> n.s.</p><p> n.s.</p><p>* n.s.</p><p> n.s.</p><p> n.s.</p><p> n.s. *</p><p> n.s. n.s.</p><p>Fig. 9 n.s.</p><p> n.s.</p><p>*</p><p> n.s.</p><p>* Fig. 10</p>