HydroBASINS lev08 watershed · #1080085260
Bassin de Chelif
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 29 administrative regions : Ain Lechiakh, Ain Soltane, Ain Tork, Barbouche, Ben Chicao +24
Sub-basin area
1 702,7km²
Upstream area
23 728,6km²
Discharge
25,93m³/s
Mean elev.
668m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Akoum513 km²
- Bassin de Chelif111 km²
29 dept-equivalent regions (GADM L2)
- 160.0 km²9.4% of basin
- 150.1 km²8.8% of basin
- 134.1 km²7.9% of basin
- 124.7 km²7.3% of basin
- 106.9 km²6.3% of basin
- 98.5 km²5.8% of basin
- 94.7 km²5.6% of basin
- 80.8 km²4.7% of basin
21 moreFull L2 list
- Ouamri79.5 km² · 4.7%
- Oued Chorfa79.5 km² · 4.7%
- Barbouche75.1 km² · 4.4%
- Boughar62.1 km² · 3.6%
- Ben Chicao58.2 km² · 3.4%
- Hannacha56.4 km² · 3.3%
- Si El Mahdjoub51.6 km² · 3.0%
- Oued Harbil47.7 km² · 2.8%
- Tizi Mahdi39.6 km² · 2.3%
- Berrouaghia30.3 km² · 1.8%
- Medea28.4 km² · 1.7%
- Miliana26.7 km² · 1.6%
- Khemis Miliana26.1 km² · 1.5%
- Ain Tork25.8 km² · 1.5%
- Draa Smar19.7 km² · 1.2%
- Medjebar17.2 km² · 1.0%
- Oued Djemaa12.1 km² · 0.7%
- Ouezra11.1 km² · 0.7%
- Bir Ould Khelifa5.7 km² · 0.3%
- Boumedfaa0.2 km² · 0.0%
- Hoceinia0.2 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
292 distinct species · 906 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Chelif : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 5 types (connectance 7.2%, filtre Serrano α=0.2). 14 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°
16,1°C
Annual rain
610mm
Moisture idx (CMI)
-0,45
Runoff
139mm/an
PET
1 112mm
AET
514mm
Mean slope
8,4°
Water table
491cm
Forest
17%
Crops
79%
Urban
6%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)