HydroBASINS lev08 watershed · #1080172880
Bassin de Oued Drâa ⴰⵙⵉⴼ ⵏ ⴷⵔⵄⴰ واد درعة
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 2 administrative regions : Ouarzazate, Tata
Sub-basin area
485,6km²
Upstream area
31 063,6km²
Discharge
56,92m³/s
Mean elev.
487m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
2 dept-equivalent regions (GADM L2)
- Ouarzazate442.1 km²91.2% of basin
- Tata42.9 km²8.8% of basin
4 intersecting protected areas
Iriqui
IUCN Not ApplicablePermanent Hunting Reserve
469.30 km² overlap
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
468.95 km² overlap
Parc National d'Iriqui
IUCN IINational Park
99.27 km² overlap
Oued Draa
IUCN Not ApplicablePermanent Hunting Reserve
15.69 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
57 distinct species · 121 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Drâa ⴰⵙⵉⴼ ⵏ ⴷⵔⵄⴰ واد درعة : 18 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 13 interactions GloBI sur 2 types (connectance 8.5%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
24,2°C
Annual rain
49mm
Moisture idx (CMI)
-0,98
Runoff
55mm/an
PET
1 984mm
AET
38mm
Mean slope
0,1°
Water table
22cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)