Table 1. Characteristics of the three main stream corridors in the Chicken Creek catchment.
| Parameter | Stream 1 | Stream 2 | Stream 3 |
|---|---|---|---|
| Catchment area (m2) | 950 | 7473 | 20 496 |
| Mean discharge (l s−1) | 0.02 | 0.13 | 0.37 |
| Length of perennial stream section (m) | 20 | 38 | 43 |
| Length of ephemeral stream channel (m) | 103 | 171 | 249 |
| Permanently wetted streambed area (m2) | 4 | 99 | 68 |
| Ephemeral streambed area (m2) | 30 | 390 | 432 |
| Channel slope (%) | 6.5 | 5.1 | 3.9 |
| Channel width at ground level (m) | 1.2 (0.6–1.9) | 2.6 (1.0–5.8) | 2.2 (0.2–5.4) |
| Organic matter in sediment or soil (mg g−1) | 2.5±0.1 | 1.7±0.1 | 2.3±0.2 |
| Chlorophyll a in sediment or soil (mg m−2) | 35.1±0.3 | 23.8±0.2 | 11.9±0.1 |
| Dissolved organic carbon in surface water (mg l−1) | 16.3±0.8 | 11.2±0.7 | 15.9±1.1 |
| Dissolved organic carbon in pore water (mg l−1) | 18.3±0.9 | 10.8±0.2 | 14.0±0.5 |
| Dissolved organic nitrogen in surface water (μg l−1) | 18±6 | 19±5 | 42±12 |
| Dissolved organic nitrogen in pore water (μg l−1) | 17±5 | 24±7 | 34±13 |
| NH4+ in surface water (μg N l−1) | 116±26 | 74±10 | 146±33 |
| NH4+ in pore water (μg N l−1) | 98±10 | 62±3 | 122±39 |
| PO43− in surface water (μg P l−1) | 4.3±0.6 | 4.1±0.3 | 6.2±0.5 |
| PO43− in pore water (μg P l−1) | 5.9±1.3 | 4.9±0.6 | 7.5±1.6 |
Data on the stream channels refer to the main stem of the drainage networks.
Most data from Gerull et al. (2011).
Values are means±1 s.e. (n=9–12) with ranges in parentheses.