HydroBASINS lev08 watershed · #1080131310
Bassin de Oued Nfiss ⴰⵙⵉⴼ ⵏⴼⵉⵙ وادي نفيس
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 : Al Haouz, Marrakech
Sub-basin area
457,2km²
Upstream area
2 047,4km²
Discharge
3,2m³/s
Mean elev.
704m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
2 dept-equivalent regions (GADM L2)
- 360.5 km²78.9% of basin
- 96.3 km²21.1% of basin
1 intersecting protected areas
Toubkal - Ouirgane
IUCN Not ApplicablePermanent Hunting Reserve
13.27 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
370 distinct species · 2 725 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Nfiss ⴰⵙⵉⴼ ⵏⴼⵉⵙ وادي نفيس : 26 espèces reliées par 41 interactions GloBI sur 5 types (connectance 7.8%, filtre Serrano α=0.2). 7 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°
17,6°C
Annual rain
337mm
Moisture idx (CMI)
-0,78
Runoff
71mm/an
PET
1 524mm
AET
285mm
Mean slope
3,3°
Water table
610cm
Forest
0%
Crops
39%
Urban
5%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)