publications > open file report > OFR 99-230 > tables > table 5
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 |
U.S. Department of the Interior, U.S. Geological Survey
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Last updated: 04 December, 2003 @ 06:05 PM(TJE)