HydroBASINS lev08 watershed · #1080118480
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 3 administrative regions : Béni Mellal, Khouribga, Khénifra
Sub-basin area
2 687,9km²
Upstream area
5 755,2km²
Discharge
8,19m³/s
Mean elev.
803m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Srou1559 km²
- Bassin de Oum Er Rbia1509 km²
3 dept-equivalent regions (GADM L2)
- 1555.2 km²57.9% of basin
- Khouribga869.6 km²32.4% of basin
- 261.4 km²9.7% of basin
11 intersecting protected areas
Tizi N'Ait ouira
IUCN Not ApplicablePermanent Hunting Reserve
178.24 km² overlap
Réserve de Biosphère de la Cedraie de l'Atlas (RBCA)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
170.90 km² overlap
Beni Zemmour
IUCN Not ApplicableBiological and Ecological Interest Site
104.07 km² overlap
Bni Zemmour
IUCN Not ApplicablePermanent Hunting Reserve
98.25 km² overlap
Tizi n'Ait Ouirra
IUCN Not ApplicableBiological and Ecological Interest Site
85.82 km² overlap
Kasba Tadla
IUCN Not ApplicablePermanent Hunting Reserve
24.10 km² overlap
Jbel Lahdid - Khénifra
IUCN Not ApplicablePermanent Hunting Reserve
21.05 km² overlap
Bejaad
IUCN Not ApplicablePermanent Hunting Reserve
15.04 km² overlap
Taqbalt
IUCN Not ApplicablePermanent Hunting Reserve
14.66 km² overlap
2 more protected areassorted by overlap area
Zaouit Cheikh
IUCN Not ApplicablePermanent Hunting Reserve
10.92 km² overlap
El ksiba
IUCN Not ApplicablePermanent Hunting Reserve
3.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
293 distinct species · 685 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 : 30 espèces reliées par 89 interactions GloBI sur 5 types (connectance 10.3%, filtre Serrano α=0.2). 12 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°
17,4°C
Annual rain
596mm
Moisture idx (CMI)
-0,62
Runoff
50mm/an
PET
1 572mm
AET
503mm
Mean slope
4,7°
Water table
440cm
Forest
12%
Crops
58%
Urban
3%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)