Table 1 Soil use of the microbasins, photointerpretation of the reach, including influence area, and characteristics of the studied riverbeds in the Lonquén river basin
| Â | Intermittent | Perennial | |||
|---|---|---|---|---|---|
Goropeumo | Los Robles | Las Minas | Arrayan | ||
Land use (%) | Area (ha) | 135.0 | 954.0 | 378.0 | 1084.0 |
Forest plantation | 66.0 | 56.6 | 81.5 | 76.8 | |
Farming | 0.2 | 27.9 | 1.5 | 15.9 | |
Shrubs | 33.7 | 12.4 | 12.4 | 4.7 | |
Native forest | 0.0 | 0.2 | 0.0 | 2.2 | |
Exotic forest | 0.0 | 2.9 | 4.6 | 0.4 | |
Photointerpretation (%) | Area (ha) | 3.9 | 6.8 | 3.9 | 3.9 |
Agricultural | 49.9 | 52.5 | 42.5 | 53.5 | |
Exotic wild trees | 30.6 | 17.6 | 11.4 | 27.5 | |
Exotic monoculture trees | 2.2 | 0.0 | 4.2 | 0.0 | |
Exotic trees isolated | 1.5 | 1.6 | 2.0 | 0.2 | |
Exotic trees adult | 0.0 | 11.9 | 0.0 | 0.0 | |
Exotic shrub (Ulex spp) | 3.1 | 0.0 | 0.0 | 0.0 | |
Shrubs-matorral | 8.8 | 1.5 | 30.2 | 8.8 | |
Hygrophilous | 0.2 | 4.1 | 0.0 | 0.0 | |
Roads | 3.1 | 6.2 | 4.0 | 4.1 | |
Edification | 0.0 | 1.9 | 2.9 | 1.5 | |
Fallow land | 0.5 | 2.7 | 2.8 | 4.4 | |
Streambed | Visual coverage of riparian vegetation (%) | 90.0 | 80.0 | 95.0 | 95.0 |
Active channel width (m) | 2.0 | 4.0 | 5.0 | 4.0 | |
Floodplain width (m) | 10.0 | 10.0 | 10.0 | 7.0 | |
Silt (%) | 70.0 | 20.0 | 0.0 | 90.0 | |
Sand (%) | 30.0 | 80.0 | 100.0 | 10.0 | |
CPOMproductivity | 0.5 | 0.5 | 0.3 | 0.1 | |
CPOM moisture (%) | 50.4 | 45.5 | 47.5 | 40.0 | |