HydroBASINS lev08 watershed · #1080119920
Bassin de Oued Oum Rbia
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 5 administrative regions : Azilal, Béni Mellal, El Kelaâ des Sraghna, Khouribga, Settat
Sub-basin area
1 749,1km²
Upstream area
20 228km²
Discharge
46,17m³/s
Mean elev.
579m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Al Abid804 km²
- Bassin de Oued Oum Rbia503 km²
5 dept-equivalent regions (GADM L2)
- Khouribga783.2 km²44.8% of basin
- 464.8 km²26.6% of basin
- Settat307.4 km²17.6% of basin
- 136.7 km²7.8% of basin
- Azilal56.0 km²3.2% of basin
3 intersecting protected areas
Oued Zem et Plateaux des phosphates
IUCN Not ApplicablePermanent Hunting Reserve
117.12 km² overlap
Khouribga
IUCN Not ApplicablePermanent Hunting Reserve
27.57 km² overlap
El Kaidar
IUCN Not ApplicablePermanent Hunting Reserve
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
145 distinct species · 788 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Oum Rbia : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 4 types (connectance 12.4%, filtre Serrano α=0.2). 8 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°
18,3°C
Annual rain
409mm
Moisture idx (CMI)
-0,74
Runoff
41mm/an
PET
1 600mm
AET
345mm
Mean slope
1,3°
Water table
278cm
Forest
0%
Crops
56%
Urban
4%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)