HydroBASINS lev08 watershed · #1080085690
Bassin de Oued Chlef
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 : Benairia, Beni Rached, Bouzeghaia, Chettia, Chlef +12
Sub-basin area
900,9km²
Upstream area
29 423,7km²
Discharge
43,21m³/s
Mean elev.
287m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Fodda1158 km²
- Bassin de Oued Chlef720 km²
17 dept-equivalent regions (GADM L2)
- Ouled FaresChlef · Algeria197.0 km²21.9% of basin
- 146.7 km²16.3% of basin
- 126.6 km²14.1% of basin
- Labiod MedjadjaChlef · Algeria99.3 km²11.0% of basin
- BouzeghaiaChlef · Algeria75.2 km²8.3% of basin
- 58.0 km²6.4% of basin
- 38.8 km²4.3% of basin
- Ouled AbbesChlef · Algeria36.4 km²4.0% of basin
9 moreFull L2 list
- Beni Rached34.7 km² · 3.9%
- Oued Sly29.5 km² · 3.3%
- Zeboudja24.8 km² · 2.8%
- Benairia22.5 km² · 2.5%
- Oued Fodda5.5 km² · 0.6%
- Harchoune2.4 km² · 0.3%
- El Hadjadj2.2 km² · 0.2%
- El Abadia1.4 km² · 0.2%
- Ouled Ben Abdelkader0.1 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
100 distinct species · 295 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Chlef : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 49 interactions GloBI sur 5 types (connectance 6.6%, filtre Serrano α=0.2). 6 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°
17,7°C
Annual rain
456mm
Moisture idx (CMI)
-0,56
Runoff
51mm/an
PET
1 030mm
AET
390mm
Mean slope
6,0°
Water table
512cm
Forest
1%
Crops
48%
Urban
16%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)