HydroBASINS lev08 watershed · #1080125420
Bassin de Assif Ahansal ⴰⵙⵉⴼ ⴷⵓⵏⴰⵛⴰⵍ
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 : Azilal, Ouarzazate
Sub-basin area
628,1km²
Upstream area
628,1km²
Discharge
4,94m³/s
Mean elev.
2 237m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- Azilal587.4 km²93.6% of basin
- Ouarzazate40.3 km²6.4% of basin
3 intersecting protected areas
Tamga et Zaouiat Ahansal
IUCN Not ApplicablePermanent Hunting Reserve
247.46 km² overlap
Réserve de Biosphère des Oasis du Sud Marocain (RBOSM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
5.80 km² overlap
Assifs Ahançal-Melloul
IUCN Not ReportedWetland of International Importance (Ramsar Site)
3.78 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
188 distinct species · 274 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Assif Ahansal ⴰⵙⵉⴼ ⴷⵓⵏⴰⵛⴰⵍ : 28 espèces reliées par 72 interactions GloBI sur 4 types (connectance 8.8%, filtre Serrano α=0.2). 13 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°
10,6°C
Annual rain
502mm
Moisture idx (CMI)
-0,62
Runoff
207mm/an
PET
1 327mm
AET
426mm
Mean slope
18,6°
Water table
744cm
Forest
0%
Crops
21%
Urban
0%
Protected
63%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)