HydroBASINS lev08 watershed · #1080089840
Bassin de Oued El Abd
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 17 administrative regions : Ain El Hadid, Ain Ferah, Ain Kermes, Djebilet Rosfa, El Hachem +12
Sub-basin area
2 601,2km²
Upstream area
2 601,2km²
Discharge
1,52m³/s
Mean elev.
877m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
17 dept-equivalent regions (GADM L2)
- TakhemaretTiaret · Algeria558.8 km²21.5% of basin
- Djebilet RosfaTiaret · Algeria492.2 km²18.9% of basin
- 348.0 km²13.4% of basin
- 233.8 km²9.0% of basin
- 203.3 km²7.8% of basin
- Ain KermesTiaret · Algeria168.5 km²6.5% of basin
- 147.7 km²5.7% of basin
- 136.4 km²5.2% of basin
9 moreFull L2 list
- Oued El Abtal84.6 km² · 3.3%
- El Hachem76.7 km² · 3.0%
- Ain El Hadid69.8 km² · 2.7%
- Gharrous45.3 km² · 1.7%
- Ain Ferah24.6 km² · 0.9%
- El Hassasna5.3 km² · 0.2%
- Nesmoth3.0 km² · 0.1%
- Sidi Abderrahmane2.8 km² · 0.1%
- Frenda0.2 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
63 distinct species · 312 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 11 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Oued El Abd : 8 espèces reliées par 12 interactions GloBI sur 2 types (connectance 18.2%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
15,4°C
Annual rain
398mm
Moisture idx (CMI)
-0,65
Runoff
17mm/an
PET
1 124mm
AET
341mm
Mean slope
3,8°
Water table
575cm
Forest
0%
Crops
21%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)