HydroBASINS lev08 watershed · #1080099220
Bassin · #1080099220
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 : Babar, Bayadha, Debila, Douar El Ma, El Ogla +13
Sub-basin area
1 707,1km²
Upstream area
3 548,3km²
Discharge
0m³/s
Mean elev.
57m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080113500577 km²
- Bassin · #1080113510102 km²
18 dept-equivalent regions (GADM L2)
- 483.9 km²28.4% of basin
- 342.0 km²20.0% of basin
- 128.4 km²7.5% of basin
- 121.3 km²7.1% of basin
- 91.9 km²5.4% of basin
- 75.6 km²4.4% of basin
- Douar El MaEl Oued · Algeria74.2 km²4.3% of basin
- 69.2 km²4.1% of basin
10 moreFull L2 list
- Kouinine63.3 km² · 3.7%
- Nakhla50.3 km² · 2.9%
- Hassani Abdelkrim48.3 km² · 2.8%
- Bayadha47.1 km² · 2.8%
- Taghzout39.6 km² · 2.3%
- Ourmes31.2 km² · 1.8%
- Debila18.0 km² · 1.1%
- Oued El Alenda15.9 km² · 0.9%
- Trifaoui4.8 km² · 0.3%
- Babar1.3 km² · 0.1%
1 intersecting protected areas
Chott Melrhir
IUCN Not ReportedWetland of International Importance (Ramsar Site)
359.55 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
81 distinct species · 137 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 · #1080099220 : 33 espèces reliées par 43 interactions GloBI sur 4 types (connectance 6.5%, 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°
21,8°C
Annual rain
75mm
Moisture idx (CMI)
-0,95
Runoff
5mm/an
PET
1 638mm
AET
62mm
Mean slope
0,5°
Water table
316cm
Forest
0%
Crops
0%
Urban
6%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)