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Table I
Mean monthly values of litterfall production (Mg DM ha−1y−1) of mono-specific forests of T. integrifolia and S. humboldtiana, and mixed forests of A. inundata and N. angustifolia, located in the P.N.P.D., during each study year (1998, 2000, 2001, and 2002). Mean monthly production of each forest site (total mean) for the whole study period 1998–2002 is indicated. nd: no data available (in brackets, standard error).
| Forests | Number of samples | Years | Leaves | Branches | Flowers + fruits | Others | Total | Leaves / Branches | |
|---|---|---|---|---|---|---|---|---|---|
| Sauce | |||||||||
| S. humboldtiana | 48 | 1998 | 5.58 (±0.15) | 1.40 (±0.10) | 0.25 (±0.01) | 0.97 (±0.05) | 8.17 (±0.16) | 4,0 | |
| 48 | 2000 | 4.83 (±0.16) | 1.10 (±0.06) | 0.19 (±0.01) | 0.63 (±0.03) | 6.71 (±0.18) | 4,0 | ||
| 48 | 2001 | 5.04 (±0.13) | 1.10 (±0.07) | 0.12 (±0.01) | 0.67 (±0.04) | 6.89 (±0.16) | 4.8 | ||
| 48 | 2002 | 3.15 (±0.14) | 1.20 (±0.09) | 0.13 (±0.01) | 0.77 (±0.05) | 5.30 (±0.21) | 2.5 | ||
| 192 | Average | 4.7 (±1.0) | 1.2 (±0.2) | 0.2 (±0.1) | 0.8 (±0.2) | 6.8 (±1.2) | 3.9 | ||
| % | 69 | 18 | 2.6 | 10.4 | 100 | ||||
| Aliso | |||||||||
| T. integrifolia | 48 | 1998 | 2.41 (±0.08) | 0.80 (±0.04) | 0.24 (±0.04) | 4.35 (±0.11) | 7.77 (±0.20) | 3.2 | |
| 48 | 2000 | 2.03 (±0.06) | 0.80 (±0.06) | 0.11 (±0.01) | 3.68 (±0.08) | 6.64 (±0.16) | 2.5 | ||
| 48 | 2001 | 2.44 (±0.08) | 0.60 (±0.03) | 0.14 (±0.02) | 3.72 (±0.07) | 6.90 (±0.10) | 4.1 | ||
| 48 | 2002 | 1.64 (±0.09) | 0.60 (±0.04) | 0.10 (±0.01) | 2.32 (±0.08) | 4.63 (±0.20) | 2.7 | ||
| 192 | Average | 2.1 (±0.4) | 0.70 (±0.1) | 0.1 (±0.1) | 3.5 (±0.9) | 6.5 (±1.3) | 3,0 | ||
| % | 33 | 10 | 2 | 55 | 100 | ||||
| Timbó | |||||||||
| A. inundata | 44 | 1998 | 0.87 (±0.07) | 0.60 (±0.06) | 0.04 (±0.01) | 1.5 (±0.08) | 3.02 (±0.10) | 1.2 | |
| 48 | 2000 | 1.23 (±0.10) | 0.10 (±0.02) | 0.03 (±0.01) | 2.42 (±0.09) | 3.80 (±0.12) | 9.3 | ||
| 48 | 2001 | 1.19 (±0.14) | 0.40 (±0.04) | 0.05 (±0.01) | 1.79 (±0.06) | 3.42 (±0.14) | 3.3 | ||
| 47 | 2002 | 0.59 (±0.03) | 0.50 (±0.03) | 0.03 (±0.01) | 1.52 (±0.09) | 2.61 (±0.08) | 1.3 | ||
| 185 | Average | 1.0 (±0.3) | 0.40 (±0.2) | 0.04 (±0.01) | 1.8 (±0.4) | 3.3 (±0.5) | 2.5 | ||
| % | 30 | 12.5 | 1 | 56.5 | 100 | ||||
| Laurel | |||||||||
| N. angustifolia | 36 | 1998 | 4.73 (±0.17) | 0.50 (±0.02) | 0.07 (±0.01) | 5.06 (±0.33) | 10.34 (±0.33) | 10.1 | |
| 36 | 2000 | 2.65 (±0.18) | 0.60 (±0.05) | 0.01 (±0.00) | 5.51 (±0.14) | 8.81 (±0.24) | 4.3 | ||
| 0 | 2001 | nd | nd | nd | nd | nd | Nd | ||
| 0 | 2002 | nd | nd | nd | nd | nd | Nd | ||
| 72 | Average | 3.7 (±1.5) | 0.5 (±0.1) | 0.04 (±0.01) | 5.3 (±0.3) | 9.6 (±1.1) | 6.2 | ||
| % | 39,0 | 6,0 | 0.4 | 54.6 | 100 |