HydroBASINS lev08 watershed · #1080117960
Bassin de Oued El Rharbi
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 7 administrative regions : Assela, Boussemghoun, Chellala, El Biodh Sidi Cheikh, El Bnoud +2
Sub-basin area
3 436km²
Upstream area
3 436km²
Discharge
2,33m³/s
Mean elev.
1 122m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 1352.5 km²39.4% of basin
- 725.0 km²21.1% of basin
- BoussemghounEl Bayadh · Algeria487.2 km²14.2% of basin
- 376.3 km²11.0% of basin
- 219.0 km²6.4% of basin
- 138.2 km²4.0% of basin
- El Biodh Sidi CheikhEl Bayadh · Algeria136.0 km²4.0% of basin
3 intersecting protected areas
Atlas Saharien
IUCN Not ApplicableCultural Park
3219.97 km² overlap
Oasis de Moghrar et de Tiout
IUCN Not ReportedWetland of International Importance (Ramsar Site)
25.69 km² overlap
Cirque de Aïn Ouarka
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.95 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
42 distinct species · 71 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 Rharbi : 14 espèces reliées par 14 interactions GloBI sur 3 types (connectance 11.7%, filtre Serrano α=0.2). 2 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°
16,9°C
Annual rain
180mm
Moisture idx (CMI)
-0,87
Runoff
29mm/an
PET
1 420mm
AET
153mm
Mean slope
4,0°
Water table
856cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)