HydroBASINS lev08 watershed · #1080089910
Bassin de Oued Legsob
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 17 administrative regions : Bordj Ghdir, Chellal, El Ach, El Achir, El Hamadia +12
Sub-basin area
1 248km²
Upstream area
2 189,9km²
Discharge
5,61m³/s
Mean elev.
695m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080086700234 km²
- Bassin · #10800866403 km²
17 dept-equivalent regions (GADM L2)
- 342.2 km²27.4% of basin
- Ouled MadhiM'Sila · Algeria224.1 km²18.0% of basin
- 210.7 km²16.9% of basin
- 103.7 km²8.3% of basin
- 101.9 km²8.2% of basin
- 61.4 km²4.9% of basin
- SoumaaM'Sila · Algeria57.0 km²4.6% of basin
- Ouled MansourM'Sila · Algeria44.5 km²3.6% of basin
9 moreFull L2 list
- El Achir37.6 km² · 3.0%
- Chellal30.1 km² · 2.4%
- El Hamadia13.2 km² · 1.1%
- Hammam Dalaa10.3 km² · 0.8%
- Maadid9.8 km² · 0.8%
- M'Cif1.4 km² · 0.1%
- Bordj Ghdir0.3 km² · 0.0%
- Ghilassa0.0 km² · 0.0%
- Mansoura0.0 km² · 0.0%
1 intersecting protected areas
Chott el Hodna
IUCN Not ReportedWetland of International Importance (Ramsar Site)
406.62 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
236 distinct species · 691 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Legsob : 28 espèces reliées par 76 interactions GloBI sur 5 types (connectance 8.0%, filtre Serrano α=0.2). 16 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°
15,3°C
Annual rain
291mm
Moisture idx (CMI)
-0,76
Runoff
70mm/an
PET
1 212mm
AET
250mm
Mean slope
3,6°
Water table
287cm
Forest
0%
Crops
11%
Urban
8%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)