HydroBASINS lev08 watershed · #1080087830
Bassin de Oued El Hammam
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 23 administrative regions : Ain Adden, Ain Fares, Ain Fekan, Ain Frass, Bou Henni +18
Sub-basin area
1 193,2km²
Upstream area
8 682,9km²
Discharge
2,92m³/s
Mean elev.
370m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
23 dept-equivalent regions (GADM L2)
- BouhanifiaMascara · Algeria194.6 km²16.3% of basin
- 137.5 km²11.5% of basin
- MohammadiaMascara · Algeria124.5 km²10.4% of basin
- 98.5 km²8.3% of basin
- El GuettanaMascara · Algeria96.4 km²8.1% of basin
- El MamouniaMascara · Algeria83.9 km²7.0% of basin
- 83.0 km²7.0% of basin
- 74.4 km²6.2% of basin
15 moreFull L2 list
- Sidi Abdelmoumene70.0 km² · 5.9%
- Tizi46.5 km² · 3.9%
- Ain Fares44.4 km² · 3.7%
- El Ghomri35.3 km² · 3.0%
- Ain Frass34.6 km² · 2.9%
- El Keurt31.1 km² · 2.6%
- Mustafa Ben Brahim19.2 km² · 1.6%
- Bou Henni7.9 km² · 0.7%
- El Bordj4.4 km² · 0.4%
- Mascara2.8 km² · 0.2%
- Chorfa2.7 km² · 0.2%
- Ain Adden1.3 km² · 0.1%
- M'Cid0.1 km² · 0.0%
- Fornaka0.1 km² · 0.0%
- Ain Fekan0.1 km² · 0.0%
1 intersecting protected areas
Marais de la Macta
IUCN Not ReportedWetland of International Importance (Ramsar Site)
14.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
513 distinct species · 5 083 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 Oued El Hammam : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 4 types (connectance 9.2%, filtre Serrano α=0.2). 8 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°
17,1°C
Annual rain
426mm
Moisture idx (CMI)
-0,59
Runoff
15mm/an
PET
1 046mm
AET
365mm
Mean slope
7,3°
Water table
539cm
Forest
0%
Crops
27%
Urban
6%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)