HydroBASINS lev08 watershed · #1080174800
Bassin · #1080174800
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 4 administrative regions across 2 countries : Errachidia, Ouarzazate, Oum El Assel, Tabelbala
Sub-basin area
2 765,5km²
Upstream area
2 765,8km²
Discharge
3,36m³/s
Mean elev.
614m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 2003.5 km²72.5% of basin
- Oum El AsselTindouf · Algeria450.5 km²16.3% of basin
- Errachidia173.9 km²6.3% of basin
- Ouarzazate134.3 km²4.9% of basin
4 intersecting protected areas
Tindouf
IUCN Not ApplicableCultural Park
453.64 km² overlap
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
304.78 km² overlap
Tamagroute
IUCN Not ApplicablePermanent Hunting Reserve
291.62 km² overlap
Rissani
IUCN Not ApplicablePermanent Hunting Reserve
22.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
100 distinct species · 217 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 · #1080174800 : 19 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 16 interactions GloBI sur 3 types (connectance 8.4%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
23,8°C
Annual rain
33mm
Moisture idx (CMI)
-0,98
Runoff
38mm/an
PET
1 966mm
AET
24mm
Mean slope
0,8°
Water table
373cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)