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Table 5a. Sawgrass biomass in the flume, January, 1996 [Plants are 13 months old; layer in centimeters above the sediment/water interface; sample biomass in grams dry weight per square meter (gdw/m2); dead includes all dead material.]

Sample biomass (gdw/m2)
Sample
designation----
10E1 10E2 10E3 10E4
Layer Live Dead Total Live Dead Total Live Dead Total Live Dead Total
60-90 157.58 19.02 176.60 110.94 28.85 139.79 162.18 32.51 194.68 130.10 14.57 144.67
40-60 145.31 54.54 199.85 96.01 34.66 130.67 162.75 69.32 232.07 123.14 55.97 179.11
20-40 162.03 52.82 214.85 101.47 67.17 168.64 146.53 59.63 206.17 104.98 47.15 152.13
0-20 167.92 144.60 312.51 97.95 192.60 290.56 135.91 146.82 282.73 136.56 152.63 289.19
total 632.85 270.97 903.82 406.38 323.28 729.66 607.38 308.28 915.66 494.79 270.32 765.11

Sample biomass (gdw/m2)
Sample
designation----
20E1 20E2 20E3 20E4
Layer Live Dead Total Live Dead Total Live Dead Total Live Dead Total
60-90 91.42 13.99 105.42 218.15 34.37 252.52 109.51 21.46 130.96 150.48 60.42 210.90
40-60 78.72 42.84 121.56 194.18 55.90 250.08 91.42 58.63 150.05 109.08 89.77 198.85
20-40 98.74 64.30 163.04 152.20 61.00 213.20 111.44 90.85 202.29 131.39 81.88 213.27
0-20 100.46 115.68 216.14 228.48 127.16 355.64 145.96 162.18 308.14 108.14 122.14 230.28
total 369.35 236.81 606.16 793.02 278.43 1,071.45 458.33 333.11 791.44 499.09 354.21 853.30

Sample biomass (gdw/m2)
Sample
designation----
30E1 30E2 30E3 30E4
Layer Live Dead Total Live Dead Total Live Dead Total Live Dead Total
60-90 187.80 41.69 229.49 111.59 20.31 131.89 63.29 13.85 77.14 109.79 47.36 157.15
40-60 179.40 103.62 283.02 99.39 38.61 137.99 52.53 21.38 73.91 79.94 43.99 123.93
20-40 130.82 58.99 189.81 102.40 45.64 148.04 62.00 52.96 114.96 94.44 77.07 171.51
0-20 215.06 196.91 411.97 148.76 144.02 292.78 71.98 161.96 233.94 135.48 211.19 346.67
total 713.08 401.21 1,114.29 462.13 248.58 710.71 249.80 250.16 499.95 419.65 379.61 799.26

Sample biomass (gdw/m2)
Sample
designation----
40E1 40E2 40E3 40E4
Layer Live Dead Total Live Dead Total Live Dead Total Live Dead Total
60-90 120.20 27.84 148.04 122.35 62.93 185.28 65.95 29.42 95.37 133.11 18.44 151.56
40-60 118.26 46.72 164.98 112.66 75.92 188.59 60.13 37.03 97.16 124.14 29.71 153.85
20-40 95.80 63.01 158.80 117.83 97.59 215.42 57.84 60.92 118.76 136.99 47.07 184.06
0-20 109.36 202.36 311.73 153.28 157.80 311.08 50.09 158.95 209.04 151.70 112.38 264.08
total 443.62 339.93 783.55 506.12 394.25 900.37 234.01 286.32 520.33 545.95 207.60 753.55

Table 5b. Summary of sawgrass biomass in the flume, January, 1996 [Plants are 13 months old; layer in centimeters above the sediment/water interface; sample biomass in grams dry weight per square meter (gdw/m2); SD = standard deviation, N = number of samples; dead includes all dead material.]

Layer Average live biomass SD N Average dead biomass SD Average total biomass SD
60-90 127.78 40.81 16 30.44 15.61 158.22 48.01
40-60 114.19 40.35 16 53.66 22.08 167.86 56.20
20-40 112.93 29.57 16 64.25 15.42 177.18 33.23
0-20 134.82 46.39 16 156.84 30.72 291.66 53.89
total 489.72 148.98 16 305.19 58.49 794.91 169.62

Table 5c. Descriptive information on flume vegetation, January, 1996 [Plants are 13 months old; layer in centimeters above the sediment/water interface; average width in millimeters.]

Large leaves Medium leaves Small leaves Large culms Small culms
Layer Average # leaves/m2 Average width Average # leaves/m2 Average width Average # leaves/m2 Average width Average # culms/m2 Average width Average # culms/m2 Average width
60-90 87.0 8.5 343.1 6.3 293.8 3.5     8.5 4.2
40-60 61.4 9.0 285.7 6.0 214.8 3.8 13.5 10.2 50.7 5.1
20-40 52.0 9.2 131.0 6.4 147.1 4.0 36.3 11.9 61.0 6.4
0-20 49.3 10.6 59.7 7.0 34.5 3.5 55.2 14.0 59.7 7.8

Table 5d. Summary of leaves and culms in the flume, January, 1996 [Plants are 13 months old; layer in centimeters above the sediment/water interface; SD = standard deviation; N = number of samples.]

Layer Total leaves/m2 SD N Total culms/m2 SD
60-90 723.9 214.96 16 8.5 11.18
40-60 562.0 181.93 16 64.1 27.2
20-40 330.1 129.04 16 97.3 28.34
0-20 143.5 83.15 16 114.8 32.52

Table 5e. Leaf area index by layer for the flume, January, 1996 [Leaf area index is calculated for live leaves and culms only; layer in centimeters above the sediment-water interface; see text for formulas.]

Layer Leaf Area Index Corrected Leaf Area Index
60-90 1.195 1.480
40-60 0.694 1.020
20-40 0.545 0.856
0-20 0.460 0.994
Total 2.894 4.349


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