HydroBASINS lev08 watershed · #1080086030
Bassin de Oued Krab
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 18 administrative regions : Ain Beida, Ain Sandel, Ain Soltane, Berriche, Bir Bouhouche +13
Sub-basin area
1 104,2km²
Upstream area
1 104,2km²
Discharge
2,11m³/s
Mean elev.
896m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
18 dept-equivalent regions (GADM L2)
- 168.6 km²15.3% of basin
- Safel El OuidenSouk Ahras · Algeria146.7 km²13.3% of basin
- Oum El AdhaimSouk Ahras · Algeria117.6 km²10.6% of basin
- TerragueltSouk Ahras · Algeria113.2 km²10.2% of basin
- Bir BouhoucheSouk Ahras · Algeria108.1 km²9.8% of basin
- 106.3 km²9.6% of basin
- 97.9 km²8.9% of basin
- 90.6 km²8.2% of basin
10 moreFull L2 list
- Tiffech64.4 km² · 5.8%
- Zouabi49.5 km² · 4.5%
- Khemissa36.0 km² · 3.3%
- Ain Sandel1.5 km² · 0.1%
- Hammam N'Bail1.1 km² · 0.1%
- Drea1.1 km² · 0.1%
- M'Daourouche1.0 km² · 0.1%
- Ain Soltane0.8 km² · 0.1%
- Ain Beida0.1 km² · 0.0%
- Hanencha0.0 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
74 distinct species · 255 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Krab : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 4 types (connectance 6.9%, filtre Serrano α=0.2). 4 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°
13,7°C
Annual rain
522mm
Moisture idx (CMI)
-0,58
Runoff
71mm/an
PET
1 247mm
AET
443mm
Mean slope
2,9°
Water table
339cm
Forest
1%
Crops
64%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)