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Open watercourse with medium gradient

Type 8

Salinity: <1 g/L
Altitude: 125-300 m (ici : 230-235 m)
Width of the watercourse (bottom width):  >20 m
Current: Usually fast

Description

The watercourse has an average gradient, with mainly coarse grain size, including many boulders and rocks; lava present). The water is fresh, limpid. The watercourse is wide, the riparian areas disjointed. The environment is not forested but already hygrophilous. The banks blend into the hillsides framing the watercourse, with fairly steep gradients. Note: type seen on a single station.

Description

Connection of riparian areas (if intact):  Total

Altitude: 125-300 m (ici : 230-235 m)

Watercourse width (low): >20 m

Grain size (banks and bed): Coarse, with boulders and rocks

Gradient: Average: 4% (1-8%)

Current:
Usually fast

Banks:  39° (20°-45°)

Salinity:
<1 g/L

Ten-year daily rainfall: 265 mm

Sampled stations

  • Pérou (upstream)

Main
species observed

Tree species : Inga ingoides, Dussia martinicensis, Sloanea dentata, Sterculia caribaea, Cecropia schreberiana, Ficus insipida, Cecropia schreberiana, Samanea saman.

Shrub species Piper dilatatum, Cyathea arborea, Piper hispidum, Clidemia umbrosa

Herbaceous species Thelypteris reticulata, Blechnum occidentale, Selaginella flabellata, Nephrolepis rivularis, Philodendron giganteum, Etlingera elatior, Syngonium podophyllum.

underlined: bioengineering / restoration; in gray: species from degraded environments; *: species from somewhat xerophilic environment

Intact type

Degraded type

Intact profile

Learn more about the watercourses and riparian areas of Guadeloupe
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